Altair CFD

Altair Engineering, Inc.
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Product overview
Altair CFD is a suite of advanced computational fluid dynamics (CFD) tools that provide comprehensive capabilities for solving complex fluid flow and thermal problems. It utilizes a range of solver methods, including Navier- Stokes solver, Smoothed- particle hydrodynamics (SPH) and lattice-Boltzmann techniques, to deliver accurate and efficient simulations.
Operating Systems
Windows             Linux
Data Storage
 On-Premises Storage
Industry served

 Aerospace

 Automotive

 Construction Equipment

 Energy

 Process & Chemicals

 Marine & Offshore

 Turbomachinery

 Rail Industry

 Defence

Rail Industry


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Simulation types

Steady-State CFD Analysis
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Steady-State CFD Analysis: Analyzes fluid flow or heat transfer over time until it reaches a steady condition where variables do not change
Turbulent Flow Simulation
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Turbulent Flow Simulation: Involves the numerical analysis of fluid flows with chaotic and irregular fluctuations, aiming to predict the complex interactions within turbulent flows
Transient CFD Analysis
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Transient CFD Analysis: Studies how fluid flow or thermal properties change over time, capturing dynamic effects
Compressible Flow Analysis
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Incompressible Flow Analysis: Assumes fluid density remains constant, typically used for low-speed fluid flows
Incompressible Flow Analysis
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Incompressible Flow Analysis: Assumes fluid density remains constant, typically used for low-speed fluid flows
Non-Newtonian Fluids
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Non-Newtonian Fluids: Simulates fluids whose viscosity changes with the rate of shear strain, such as slurries and polymers
Cavitation Analysis
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Cavitation Analysis: Examines the formation of vapor cavities in a liquid, often occurring in pumps and propellers
Combustion Analysis
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Combustion Analysis: Studies the chemical reaction of burning and its effects on fluid flow and heat transfer
Conjugate Heat Transfer
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Conjugate Heat Transfer: Simulates the combined modes of heat transfer (conduction, convection, and radiation) in solids and fluids
Free Surface Flow Analysis
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Free Surface Flow Analysis: Deals with flows having a free surface interface between two fluids, like water and air
Heat Transfer Analysis
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Heat Transfer Analysis: Involves conduction, convection, and radiation studies in fluids and solids
Design of Experiments
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Design of Experiments (DoE): A systematic method to determine the relationship between factors affecting a process and the output of that process
Particle and Droplet Tracking (Lagrangian Modeling)
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Particle and Droplet Tracking (Lagrangian Modeling): Simulates the movement of particles or droplets within a fluid flow
Electromagnetic Analysis (Magnetohydrodynamics
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Electromagnetic Analysis (Magnetohydrodynamics, Plasma): Studies the interaction between magnetic fields and conducting fluids
Plasma)
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Electromagnetic Analysis (Magnetohydrodynamics, Plasma): Studies the interaction between magnetic fields and conducting fluids
Multiphysics with Structure (Fluid-Structure Interaction)
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Multiphysics with Structure (Fluid-Structure Interaction): Analyzes the interaction between fluid flow and structural elements
Acoustic Analysis (Aeroacoustics)
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Acoustic Analysis (Aeroacoustics): Examines noise generated by turbulent fluid flow
Multiphase Flow Simulation.
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Turbulance Models

RANS Model
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RANS Model (Reynolds-Averaged Navier-Stokes): Simplifies turbulence by averaging the effects over time, suitable for steady-state or slowly varying flows
LES (Large Eddy Simulation)
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LES (Large Eddy Simulation): Resolves large-scale turbulent flow structures directly and models smaller scales, offering high fidelity at a higher computational cost
DES (Detached Eddy Simulation)
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DES (Detached Eddy Simulation): A hybrid approach combining RANS and LES, used for flows with regions of separation and recirculation
SAS (Scale-Adaptive Simulation).
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Meshing Capabilities

Automatic Mesh Generation
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Automatic Mesh Generation: Automatically creates a mesh based on the geometry and flow conditions
Local Region Meshing
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Local Region Meshing: Allows finer meshing in regions of interest for better accuracy
Boundary Layer Meshing
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Boundary Layer Meshing: Creates fine mesh layers near solid boundaries to capture boundary layer effects
Mesh Convergence Analysis
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Mesh Convergence Analysis: Determines the optimal mesh size for accuracy by comparing results from different mesh densities
Unstructured Meshing
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Unstructured Meshing: Uses tetrahedrons, hexahedrons, etc., for complex geometries
Adaptive Meshing
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Adaptive Meshing: Refines the mesh during the simulation based on solution gradients
Hybrid Meshing (Combination of Grid Types)
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Overset Grids (Chimera Grids)
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Overset Grids (Chimera Grids): Allows overlapping meshes, useful for moving objects
Structured Grids (Rectangular
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Cartesian)
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Moving Mesh and Deforming Mesh Capabilities.
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Solver Capabilities

Speed and Efficiency
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Speed and Efficiency: Focuses on solving simulations quickly and efficiently
Parallel Processing
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Parallel Processing: Utilizes multiple processors or cores to speed up computations
Solver Customization
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Solver Customization: Allows users to customize or script the solver for specific needs
Native Multi-GPU Solver
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Native Multi-GPU Solver: Leverages multiple Graphics Processing Units (GPUs) for faster processing
Implicit Solver
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Implicit Solver: Handles equations as a coupled system for stability in steady-state and transient simulations
Explicit Solver.
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