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- Full simulation engine
- 200,000 mesh nodes
- 1 CPU for meshing and computing
- No signup, no credit card, no time limit
CFD Software
SimFlow CFD
Free to Start
SimFlow - desktop CFD Software. Computational Fluid Dynamics simulations for your everyday CFD Analysis.
Free DownloadWindows / Linux / macOS
Engineers & Researchers Worldwide
14+ years of active development. Powering CFD workflows across many industries.
200,000+Engineers & Researchers Worldwide
14+Years of Active Development
1,000sof Applications
101+Physics Models
80+Countries with Active Users
Workflow
From CAD to Results in
Five Steps
The complete CFD workflow in one software.
Import & Create Geometry
- STL - Stereolithography
- Generic, portable surface mesh format. Surfaces are triangularized, approximating smooth surfaces as collections of triangles. Contains only point coordinates with no unit system. In CFD, used to define fluid domain boundaries.
- STEP - Standard for the Exchange of Product Data
- High-fidelity CAD exchange format preserving exact geometry, topology, and product data across different CAD systems.
- IGES - Initial Graphics Exchange Specification
- CAD exchange format focused on individual surfaces, curves, and wireframes. Unlike STEP, surfaces are independent entities with no topology linking them, which may introduce gaps between faces.
- OBJ
- Triangulated surface format similar to STL but also supports polygonal faces, vertex normals, and texture coordinates via external material files.
- BRep - Boundary Representation
- Exact CAD geometry format with full topology (faces, edges, vertices and their connections). Preserves the same analytical precision as STEP without the overhead of product metadata.
- Shell
- Thin-walled surface geometry without enclosed volume. Used for sheet metal parts, panels, and enclosures in CFD simulations.
- Solid
- Closed volume object with full topological information defining interior and exterior. Water-tight representation makes it ideal for defining fluid domains and CFD meshing.
- Primitives
- Basic geometric shapes (Box, Cylinder, Sphere) created directly in SimFlow. Can be used to define the computational fluid domain, as selection tools for regional models, or for altering mesh density and splitting mesh boundaries.
- Boolean
- Geometric operations (unite, intersect, subtract) that combine or cut solid bodies to create complex shapes from simple parts such as primitives.
- Transformation
- Geometric modifications applied to imported or created geometry: translate, rotate, and scale operations for precise positioning.
Start with your existing CAD models or build geometry from scratch. Import models from any major CAD system via portable formats, create simple shapes for domain definition, and prepare everything for meshing using helper geometries and surface tools.
- Import formats: STL, STEP, IGES, OBJ, BRep
- Shell and solid 3D models
- Primitive geometry: Box, Cylinder, Sphere
- Transformation: Translate, Rotate, Scale
- Boolean operations: unite, intersect, subtract
- STL tools: split, clean, extract features, extract surface
Create & Import Mesh
- Cut-Cell
- Hex-dominant method that cuts cells from a Cartesian background mesh at geometry boundaries. The fluid volume is retained implicitly, no need to define it explicitly via additional geometry.
- Hex-Dominant
- Mesh primarily composed of hexahedral cells with automatic adaptation near complex surfaces. Provides good accuracy with fewer cells than tetrahedral meshes.
- Polyhedral
- Converts tetrahedral meshes, including those imported from 3rd-party software, into polyhedral elements. Reduces cell count while maintaining accuracy and improving convergence.
- Boundary Layer
- Structured prismatic cell layers near walls that capture steep velocity and temperature gradients for accurate drag, heat transfer, and separation predictions. Control thickness and growth ratio using different definitions such as first layer, last layer, or total thickness.
- Refinement
- Increases mesh resolution locally where higher accuracy is needed. Supports surface, feature/edge, volume, and distance-based refinement strategies.
- Multi-Zone
- Meshes multiple separate volumes in a single run, for example regions divided by baffles or internal walls. Perfect for conjugate heat transfer, porous regions, rotating zones, and other multi-region setups.
- 2D/Axisymmetric
- Reduced-dimension mesh types for planar and rotationally symmetric geometries, including 2D plate and airfoil mesh generation.
- Parallel
- The domain is decomposed across available CPU cores and all meshing phases run in parallel with automatic load balancing, significantly reducing preprocessing time for large models.
- Unlimited CPUs
- No restriction on the number of processor cores for mesh generation. Scale to as many cores as your hardware provides without licensing limits.
Create high quality meshes in parallel from complex geometry with the cut-cell method. Work directly from surface geometry without creating a separate fluid volume in CAD.
Support internal and external flow cases with local refinements, boundary layers, and easy mesh updates as designs change.
Already have a mesh? Import it from Fluent, Ansys, GMSH, CFX, and more.
- Cut-Cell hex-dominant meshing with implicit fluid domain
- Parallel mesh generation (unlimited CPUs)
- Refinements: Surface, Feature/Edge, Volume, Distance
- Boundary layer with multiple size controls
- Multi-zone mesh, 2D Plate, Axisymmetric, Airfoil
- Mesh import: Fluent, Ansys, GMSH, CFX, and more
- Polyhedral converter, mesh interfaces (AMI, CHT, Overset)
Set Up Simulation
- Boundary Conditions
- Constraints applied at domain boundaries that define how the flow enters, exits, or interacts with walls. Covers velocity, pressure, temperature, turbulence, radiation, and multiphase categories with specialized variants like fans, atmospheric inlets, wall functions, and coupled region interfaces.
- Initial Conditions
- Starting state of the simulation (velocity, pressure, temperature) before the calculation begins. Set uniform values, solve potential flow for a stable starting point, assign different values to specific regions, or map results from a previous simulation.
- Material Database
- Built-in collection of fluid and solid material properties with Newtonian and non-Newtonian models. Extensible with custom materials and thermodynamic properties.
- Numerical Methods
- Defines how equations are discretized, solved, and stabilized, from low and high order schemes to linear solvers, relaxation factors, limiters, and algorithm settings such as PIMPLE and MULES.
- Parameters
- Mathematical expressions and variables used in value inputs instead of direct numbers. Helps adjust related case settings quickly without editing each input separately.
- Multi-Step
- Chains compatible stages using results from earlier steps or other cases. Supports transient starts from steady state and continuation after setup changes.
- User-Defined Models
- Custom solver and boundary condition integration extending SimFlow's built-in capabilities with user-developed OpenFOAM models.
- OpenFOAM
- OpenFOAM is the open-source CFD engine powering SimFlow, with nearly all OpenFOAM capabilities available in SimFlow. With 20+ years of development, OpenFOAM is widely used in science, automotive, and industry, and is well tested and validated.
Configure your simulation through an intuitive interface. A setup wizard helps you choose the right simulation type for your problem, whether it involves aerodynamics, heat transfer, or multiphase flow.
Define boundary conditions for flow and heat transfer, from standard setup to dedicated options for complex scenarios. Choose materials, adjust numerical settings, and use parameters to explore different configurations faster.
- Standard and dedicated boundary conditions for a wide range of scenarios
- Material database with editable fluid and solid properties
- Initialization from values, regions, potential flow, or mapped results
- Parameters and expressions for quick case-wide updates
- Numerical setup for time stepping, schemes, relaxation, and convergence
- Optional models for advanced setups, such as passive scalars, porous zones, or MRF
- Custom OpenFOAM extensions for models, boundary conditions, and solvers
Run & Monitor Simulation
- Parallel Computing
- Distributed computation across multiple processors using domain decomposition. Delivers near-linear speedup on larger CFD cases.
- Unlimited CPUs
- No restriction on the number of CPU cores used in simulation. Use as many as your hardware provides.
- Unlimited Jobs
- Run as many simultaneous simulation cases as your hardware allows. No licensing restrictions on the number of concurrent computations.
- Live Monitoring
- Real-time tracking of convergence residuals, forces, and field statistics, with result visualization during calculation.
- Runtime Control
- Adjust simulation parameters, time stepping, and discretization schemes during an active computation without stopping and restarting.
No CPU limits, no job limits. Scale parallel computing to as many cores as you have and run unlimited simultaneous cases. Monitor convergence, forces, and field statistics in real time while following simulation progress through runtime visualizations. Adjust parameters while the simulation is running.
- Parallel computing with unlimited CPUs
- Unlimited simultaneous jobs
- Live monitoring: convergence, forces, field statistics
- Runtime section planes and plots
- Adjust simulation parameters during calculation
Visualize & Export Results
- ParaView
- Open-source visualization application integrated into SimFlow. Provides advanced post-processing: contours, streamlines, vector fields, volumetric rendering, and Python scripting.
- Contours
- Color-mapped field visualization on surfaces and cross-sections showing distributions of pressure, temperature, velocity, and other quantities.
- Streamlines
- Temporal flow path visualization showing fluid trajectories through the domain. Reveals flow patterns, recirculation zones, and separation regions.
- Animation
- Create animations for both transient and steady-state results. Show flow evolution over time, or animate slices, iso-surfaces, camera motion, and other visualization settings.
- Ray Tracing
- Physically-based rendering that simulates light transport for photorealistic visualization of CFD results. Publication-quality images.
- Derived Results
- Convert result fields such as pressure, velocity, and temperature into additional post-processed quantities. This extends the raw solution data with outputs such as Q-criterion, wall shear stress, heat flux, and averaged values.
- Real-Time Monitoring
- Runtime convergence tracking, force plots, section planes, and field statistics updated continuously during simulation computation.
- Python Scripting
- Programmable post-processing using Python scripts for custom analysis, data extraction, and calculation of user-defined quantities from simulation results.
When the calculation finishes, analyze the solution and turn raw CFD data into answers you can use, such as pressure drops, wall heat transfer, or mixing index. Generate additional result fields, visualize them with plots, section planes, iso-surfaces, streamlines, and vector fields, and create photorealistic renderings for reports or presentations.
- Runtime monitoring: section planes, forces, time statistics
- Derived: mass flux, pressure drop, heat transfer coefficients, vorticity, Mach, Q-criterion
- Wall quantities: shear stress, heat flux, y+
- ParaView: contours, streamlines, vector fields, ray tracing
- Python scripting for custom post-processing
- Export: Fluent, Tecplot, Ensight, FieldView, VTK
- Surface, volume, and time integrals
Why SimFlow
EngineeringBeyondBoundaries
The CFD platform that removes every barrier between you and your simulation.
∞Unlimited HPCCPUs · Jobs · Parallel
CPUs · Jobs · Parallel
Unlimited HPC
No core limits - use as many CPUs as your hardware allows, from workstation to full cluster.
Run jobs in parallel across all available cores. No extra fees as you scale up.
WinLinuxmacOSCross-Platform
Easy to UseEasy to LearnEasy to Switch
Ease of Use
Easy to learn - Intuitive interface designed for engineers. Start running simulations on day one, not after weeks of training
Easy to switch - Coming from another CFD tool? SimFlow's familiar workflow makes the transition smooth and painless
Professional
SupportEngineering/Technical/Training
Support
Engineering/Technical/Training
Professional Support
Engineering - simulation setup & physics models guidance
Technical - installation assistance, and configuration guidance
Training - custom workshops, onboarding, and best practices
100+Physical Models1000s Applications
Physical Models
1000s ApplicationsPhysical Models
100s models covering incompressible & compressible flow, heat transfer, multiphase simulation and many more.
OpenFOAM powered - leading open-source CFD engine.
Flexible LicensingSingle-Seat/FloatingAnnual/PerpetualOnline/Offline
Single-Seat/Floating
Annual/Perpetual
Online/Offline
Flexible Licensing
Single-Seat or Floating - lock to one machine or share across your team with a license server
Annual or Perpetual - subscribe yearly with updates included, or buy once and own it forever
Online or Offline - activate via internet or use an offline license file for air-gapped environments
Capabilities
CFD Simulation
Capabilities
Over 50 CFD applications through a single interface. Multi-physics simulation, one software.
Incompressible to Supersonic
RANS, LES, and DES Methods
Conduction, Convection, Radiation
VoF, Eulerian, Lagrangian
Sprays, Droplets, Dense Beds
Species Transport & Chemistry
Motion & 6DoF Dynamics
Single Phase
- Incompressible
- Flow where fluid density remains constant. Suitable for most liquid flows and low-speed gas flows (Mach < 0.3).
- Compressible
- Flow where density changes significantly due to pressure and temperature variations. Required for high-speed gas dynamics and shock waves.
- Supersonic
- Flow exceeding the speed of sound (Mach > 1). Characterized by shock waves, expansion fans, and wave-dominated flow structures.
- Steady-State
- Analysis of flows that reach a time-independent state. Solves directly for the final solution without resolving time history, making it efficient for design iteration.
- Transient
- Time-dependent analysis that resolves how the flow evolves over time. Required for unsteady phenomena like vortex shedding and pulsating flows.
- Buoyancy
- Gravity-driven flow caused by density differences from temperature or concentration gradients. Drives natural convection in heated enclosures.
- Non-Newtonian
- Fluids whose viscosity changes with shear rate. Includes shear-thinning (blood, polymers) and shear-thickening behaviors.
- Porous Media
- Flow through porous materials (filters, packed beds, soil) using Darcy-Forchheimer resistance terms without resolving individual pores.
Simulate fluid flow across the full speed range - from water in pipes to shock waves in supersonic nozzles. Work with standard fluids or complex ones like polymers and biological flows. Add buoyancy for natural ventilation, porous resistance for filters, or rotation for fans and turbines. All through a single, unified setup.
- Incompressible and Compressible flows (Subsonic, Transonic, Supersonic)
- Pressure-based and Density-based formulations
- Non-Newtonian: Power Law, Cross-Power Law, Bird-Carreau, Herschel-Bulkley, Casson
- EoS: Perfect Gas, Peng-Robinson, Polynomial
- Buoyancy: Boussinesq approximation and full density variation
- Porous media: Darcy-Forchheimer, Power Law
- Single/Multiple Rotating Frames (SRF/MRF)
- Passive scalar transport: unlimited user-defined scalars with source terms (tracers, age fields)
- Custom source terms, fixed-value zones, and field-limiting constraints
Turbulence Modeling
- k-epsilon
- Two-equation RANS model family widely adopted across industrial CFD. Variants - Standard, RNG, and Realizable - offer different treatments of dissipation for various flow types.
- k-omega SST - Shear Stress Transport
- Blends k-omega near walls with k-epsilon in the free stream. Widely adopted for industrial applications due to reliable performance across attached and mildly separated flows.
- Spalart-Allmaras
- One-equation RANS turbulence model designed for aerodynamic applications, particularly wall-bounded flows with mild separation.
- RANS - Reynolds-Averaged Navier-Stokes
- Time-averages all turbulent fluctuations, modeling their net effect through closure equations. Suitable for most industrial flows where time-averaged quantities are sufficient.
- LES - Large Eddy Simulation
- Directly resolves large turbulent structures while modeling only the smallest eddies. High accuracy for complex turbulent flows at higher computational cost.
- SAS - Scale-Adaptive Simulation
- Dynamically adjusts to resolved turbulent structures. Provides LES-like results in unstable flow regions while maintaining RANS behavior in stable zones.
- DES - Detached Eddy Simulation
- Hybrid RANS-LES family (DES, DDES, IDDES) that applies RANS in boundary layers and resolves large eddies in separated regions.
Accurate turbulence prediction is essential across engineering - from vehicle aerodynamics and building wind loads to turbomachinery and ventilation design. The full RANS-to-LES spectrum lets you choose the right level of detail for every problem. Fast k-epsilon screening for early design, eddy-resolving DES or LES for final validation.
- k-epsilon: Standard, RNG, Realizable
- k-omega: Standard, SST
- Spalart-Allmaras (one-equation, aerodynamic applications)
- Transition: k-kl-omega, buoyant k-epsilon
- SAS: k-omega SST SAS
- DES / DDES / IDDES (k-omega SST, Spalart-Allmaras base)
- LES: Smagorinsky, WALE, kEquation, Dynamic kEquation
- Wall treatment: standard wall functions, low-Re near-wall resolution
- Turbulent boundary conditions: Intensity, Mixing Length
Heat Transfer & Radiation
- Conduction
- Heat transfer through a solid or stationary fluid by molecular energy exchange. Governs temperature distribution in solid components and is the basis for conjugate heat transfer analysis.
- Convection
- Heat transfer by fluid motion. Includes both forced convection (driven by external means) and natural convection (driven by buoyancy from temperature differences).
- CHT - Conjugate Heat Transfer
- Simultaneous solution of heat conduction in solids and convection in fluids, coupled through shared interfaces for accurate thermal predictions.
- Joule Heating
- Resistive heating generated by electric current flowing through a conductor. Couples electromagnetic energy dissipation with thermal transport.
- Evaporation
- Liquid-to-vapor transition driven by heat transfer at a free surface or interface. Includes condensation as the reverse process.
- Boiling
- Vaporization at a heated solid surface where local temperature exceeds saturation. Covers nucleate boiling and film boiling regimes.
- Radiation
- Heat transfer by electromagnetic emission between surfaces or through participating media. Dominant at high temperatures.
- S2S - Surface-to-Surface
- Calculates radiative exchange between diffuse, gray surfaces using view factors. Ideal for enclosed cavities and furnaces.
- DO - Discrete Ordinates
- Solves the radiative transfer equation along discrete directions. Handles participating media and semi-transparent boundaries.
- P1 Radiation Model
- A simplified spherical harmonics method that solves a single transport equation for radiation. Fast and efficient for optically thick participating media.
- Solar Load
- Simulates the effect of solar irradiation on surfaces, accounting for sun position, direct and diffuse radiation for HVAC and building design.
Predict temperature distributions in electronics, HVAC systems, and industrial equipment. Couple heat conduction in solids with convection in fluids, add radiation for furnaces and enclosures, or model solar loads for building design. From simple cooling to full multi-physics thermal analysis.
- Forced and natural convection
- Conjugate Solid-Fluid Heat Transfer (CHT)
- Radiation: S2S, Discrete Ordinates, P1
- Solar Load modeling
- Joule Heating
- Phase Change: Evaporation and Boiling
- Solid material properties: constant and temperature-dependent (polynomial)
- Thermal boundary conditions: fixed temperature, fixed heat flux, convective, radiative
Multiphase CFD
- VoF - Volume of Fluid
- Tracks the interface between two immiscible fluids by solving a transport equation for the volume fraction of each phase.
- MULES - Multidimensional Universal Limiter with Explicit Solution
- Algebraic VoF scheme that uses flux-limiting to maintain a bounded volume fraction field. Implicit and unconditionally stable.
- Iso-Advector
- Geometric VoF scheme that reconstructs the interface as a plane within each cell and advects it explicitly. Produces sharper interface resolution.
- Free Surface
- The interface between two fluids (typically liquid and gas) that is free to deform under gravity, pressure, and surface tension forces.
- Surface Tension
- Force acting along the interface between immiscible fluids, arising from molecular cohesion imbalance. Controls droplet shape and capillary rise.
- Eulerian
- Euler-Euler approach where both phases are treated as interpenetrating continua. Each phase has its own set of conservation equations.
- Lagrangian
- Individual particles, droplets, or bubbles are tracked through the continuous flow field, resolving forces and interactions at the particle level.
- Cavitation
- Simulates the formation and collapse of vapor cavities in liquid when local pressure drops below the vapor pressure.
- Wave Generation
- Generates realistic ocean waves (Stokes, Cnoidal, Solitary) at inlet boundaries for marine and coastal engineering simulations.
- Phase Change
- Models evaporation, condensation, and boiling at the interface between liquid and vapor phases driven by heat transfer.
Simulate real-world scenarios involving multiple fluids - waves crashing against a ship hull, fuel sloshing in a tank, air bubbles rising through liquid, or steam condensing on a cold surface. Track sharp interfaces between fluids or model dispersed mixtures with dedicated approaches for each scenario.
- VoF: MULES (algebraic, implicit) and Iso-Advector (geometric, explicit)
- Surface tension: CSF model, contact angle specification
- Free-surface tracking with adaptive mesh refinement
- Wave Generation: Stokes, Cnoidal, Solitary, Stream Function
- Cavitation: Schnerr-Sauer, Kunz, Merkle models
- Phase Change: condensation & evaporation at interfaces
- Euler-Euler: two-fluid model with inter-phase momentum and heat transfer
- Lagrangian tracking with two-way coupling
Particle Modeling
- Lagrangian
- Tracks individual particles through the flow field, resolving trajectories, forces, heat transfer, and collisions. Supports one-way and two-way coupling.
- Euler-Euler
- Treats the particle phase as a continuous interpenetrating medium with its own conservation equations. Suitable for high volume fractions.
- Sprays
- Liquid injection into a gas flow, producing a cloud of droplets through atomization at the nozzle exit.
- Droplets
- Individual liquid drops tracked through the carrier gas. Subject to drag, evaporation, heat transfer, collision, coalescence, and secondary breakup.
- Atomization
- Primary breakup of liquid jets and sheets into droplets. Models the initial disintegration of liquid at the injector exit.
- Breakup
- Secondary droplet breakup models that split large droplets into smaller ones due to aerodynamic forces. Includes Reitz-Diwakar and Reitz-KHRT models.
- Dense Particle Bed
- High-concentration particle flows where inter-particle collisions, packing, and contact forces dominate.
- Collision
- Particle-particle interaction models including stochastic collision, coalescence, and deterministic contact models for dense flows.
- Erosion
- Surface material removal caused by particle impact. Predicts wear patterns and rates on walls, bends, and equipment surfaces.
Track particles through your flow field - fuel droplets in a combustion chamber, sand eroding a pipe bend, powder coating a surface, or seeds dispersing in wind. Two complementary approaches handle everything from dilute sprays to dense packed beds with inter-particle collisions.
- Lagrangian tracking with one-way and two-way coupling
- Euler-Euler dispersed phase model
- Injectors: Cone, Boundary, Cell Zone, Manual
- Size distributions: Rosin-Rammler, uniform, general
- Breakup and atomization: Reitz-Diwakar, Reitz-KHRT, Blob, LISA
- Particle heat transfer: Ranz-Marshall, evaporation, boiling
- Collision, coalescence, and erosion models
- Dense particle bed: packing, inter-particle stress, drag closures
Combustion & Reactions
- Species Transport
- Solves conservation equations for individual chemical species concentrations, tracking their production and consumption through reactions.
- Arrhenius
- Exponential rate expression relating reaction speed to temperature through activation energy and a pre-exponential factor.
- Finite Rate
- Reaction rates computed directly from temperature and species concentrations using kinetic rate expressions.
- EDM - Eddy Dissipation Model
- Models reaction rate as controlled by turbulent mixing rather than chemical kinetics. Computationally efficient for diffusion-controlled flames.
- EDC - Eddy Dissipation Concept
- Treats reactions as occurring in fine turbulent structures at the sub-grid scale. Accommodates detailed chemical mechanisms.
- PaSR - Partially Stirred Reactor
- Turbulence-chemistry interaction model that blends finite-rate chemistry with turbulent mixing at the cell level.
- Coal Combustion
- Solid fuel combustion modeling including devolatilization, char oxidation, and volatile combustion with particle heating and mass loss.
- Reacting Flow
- Flow where chemical reactions actively change composition, release or absorb heat, and alter fluid properties.
Simulate chemical reactions from simple species mixing to complex combustion with detailed chemistry. Model gas burners, coal furnaces, engine combustion, or any process where reactions interact with fluid flow. Built-in species database and reaction models handle the setup.
- Species Transport with 2,000+ species database
- Infinitely fast (equilibrium) and laminar finite-rate chemistry
- Turbulence-chemistry interaction: EDM, EDC, PaSR
- Volumetric and surface reactions
- Spray evaporation with reactions
- Coal combustion: devolatilization, char oxidation, volatile release
- Chemistry reduction: ISAT, DAC, DRG
Dynamic Mesh & 6DoF
- 6DoF - Six Degrees of Freedom
- Rigid body dynamics with three translational and three rotational motions coupled to fluid forces and moments.
- Multi-Body
- Multiple independently moving objects in one simulation, each with its own prescribed or coupled motion.
- Dynamic Mesh
- Mesh deformation and motion that adapts to moving boundaries. Includes morphing, layering, and remeshing strategies.
- Overset
- Overlapping grid method where independently meshed bodies move through a background mesh. Avoids mesh deformation entirely.
- Sliding Mesh
- Transient simulation with physically rotating mesh zones connected through sliding interfaces. Captures unsteady rotor-stator interaction.
- MRF - Multiple Reference Frame
- Steady-state approximation for rotating machinery with multiple zones spinning at different speeds.
- SRF - Single Reference Frame
- Simplest rotating frame approach where the entire computational domain rotates at one angular velocity.
- AMI - Arbitrary Mesh Interface
- Connects non-conformal mesh regions allowing sliding and rotating motion between adjacent zones.
Simulate problems with moving parts - a valve opening, a propeller spinning, a ship rocking on waves, or multiple bodies interacting in flow. From simple prescribed rotations to fully coupled motion where fluid forces drive the movement. No remeshing needed for complex multi-body scenarios.
- Rigid Motion: Rotating, Oscillating, Linear, SDA, Tabulated
- Multi-Body Rigid Motion
- Mesh deformation: Laplacian smoothing, SBR Stress
- 6DoF with constraints and restraints
- Overset (Chimera) mesh
- Sliding Mesh with AMI coupling
- Mesh interfaces: Cyclic, AMI, CHT, Overset
Industries
CFD Engineering across
Industries
SimFlow covers the physics that matter across engineering disciplines. Every application below runs in SimFlow Free.
Aerospace & Defense
Aerospace & Defense
Aerospace & Defense
External aerodynamics, supersonic and transonic flow regimes, thermal protection analysis, and re-entry heating. From airfoil profiles to full aircraft configurations.
Automotive
Automotive
Automotive
Vehicle drag reduction, underbody flow optimization, brake disc cooling, and EV battery thermal management. Complete vehicle aerodynamic analysis.
Marine & Offshore
Marine & Offshore
Marine & Offshore
Ship hull resistance prediction, propeller hydrodynamics, wave-structure interaction, and sloshing analysis with free surface capturing.
Water & Environmental
Water & Environmental
Water & Environmental
Dam spillway hydraulics, river and coastal flow modeling, wastewater treatment optimization, and flood risk assessment with free surface methods.
Energy & Power
Energy & Power
Energy & Power
Wind turbine blade optimization, combustion chamber analysis, heat exchanger performance, and cooling system design for power generation.
HVAC & Building
HVAC & Building
HVAC & Building
Indoor air quality analysis, ventilation system design, fire and smoke propagation simulation, and thermal comfort assessment.
Biomedical
Biomedical
Biomedical
Blood flow in arteries and stents, respiratory airflow analysis, medical device design, and drug delivery optimization with non-Newtonian fluid models.
Consumer Goods
Consumer Goods
Consumer Goods
Electronics cooling and thermal management, spray and atomization modeling, polymer processing simulation, and product airflow optimization.
Turbomachinery
Turbomachinery
Turbomachinery
Pump and fan performance prediction, compressor and turbine analysis using MRF and AMI rotating frame methods, and cavitation modeling.
Process & Industrial
Process & Industrial
Process & Industrial
Valve flow characterization, erosion and wear prediction, mixing vessel optimization, and pipeline flow assurance analysis.
FAQ
Frequently Asked
Questions
Everything you need to know about SimFlow CFD software.
01What is CFD software?
CFD software uses numerical methods to solve the Navier-Stokes equations and predict fluid flow, heat transfer, and related phenomena. SimFlow is a professional desktop CFD application covering aerodynamics, hydrodynamics, heat transfer, multiphase flows, particle tracking, and more - all through a graphical interface.
02Is SimFlow really free?
SimFlow offers a free tier with no time limit and no signup required. Start with free version with full access to all CFD applications and physics models, and scale to a commercial plan when you are ready.
Free version limits: 200,000 mesh nodes, 1 CPU. Commercial version has no CPU or mesh limit.
03What is the difference between Free and Commercial plans?
Same physics engine, same applications. Free: 200k mesh nodes, 1 CPU. Commercial: unlimited mesh, CPUs, plus engineering support.
04Which operating systems does SimFlow support?
SimFlow is a cross-platform desktop CFD software running natively on Windows, Linux, and macOS (Apple Silicon).
05Can I run CFD software on Mac?
Yes. Native macOS support including Apple Silicon (M1/M2/M3/M4). Same simulations, same interface as Windows or Linux.
06How much does CFD software cost?
Professional single-seat license is 8,000 EUR/year. Enterprise floating license is 10,000 EUR/year. Both include unlimited mesh, parallel computing, and full engineering support. SimFlow Free is available at no cost with no time limit.
07What is a Single-Seat License?
A single-seat license is tied to one computer. This is the standard option for individual engineers and researchers.
08What is a Floating (Network) License?
This is a license solution designed for teams. A floating license can be shared across your network, allowing any team member to use it on any computer, one at a time.
There are no geographical limitations as the license can be accessed via VPN.
09Do you offer perpetual licenses?
SimFlow offers perpetual licenses. Contact our sales team for details and pricing.
10Is SimFlow cloud-based?
No. Desktop application. Data never leaves your hardware. Offline license available for Enterprise plans. HPC cluster support included.
11What mesh formats can I import?
OpenFOAM, Fluent (.msh), Ansys, I-DEAS, GAMBIT, GMSH, and CFX. 7 mesh formats. Geometry: STL, STEP, IGES, OBJ, BRep.
12How does SimFlow compare to established CFD solutions?
Established tools often cost tens of thousands EUR per year. SimFlow offers a wide range of physics at a fraction of the price, runs on all 3 major OS, includes all physics in every plan, and has a functional free version.
Built on OpenFOAM, it also benefits from more than 20 years of development, testing, and validation, giving you a mature and trusted CFD foundation.
Pricing
Start Free.ScaleWhen You're Ready.
Every plan includes the same physics engine. The only difference? Scale and support.
Most Popular
Professional
Full power for individual engineers and researchers
8,000 EUR / year
Single Seat license
- Everything in Free, plus:
- Unlimited mesh & CPUs
- Engineering support
- Automatic updates
- 30-day free trial available
Enterprise
Flexible access for engineering teams
10,000 EUR / year
Floating license
- Everything in Professional, plus:
- Priority assistance
- Offline license option
- 30-day free trial available
Perpetual licenses available. Academic pricing for universities. See full pricing details