Computational Fluid Dynamics (CFD)

CFD is a group of numerical methods used to simulate the physical behavior of a fluid.

Today, with the development of computational power resources, it is possible to simulate relatively complex problems while limiting CPU time. Thusly, CFD is an essential tool for the engineer when it comes to designing, optimizing, developing stages of an innovative process, or physical analysis of complex phenomena involving fluids.

The fields of application of CFD are numerous and varied:

  • Nuclear reactor core cooling calculations.
  • Aerodynamic and hydrodynamic calculations (drag, lift, yaw…).
  • Pressure drops calculations.
  • Cooling of electronic components calculations, buildings efficiency, and thermal comfort.
  • Species transport calculations (concentration monitoring, dilution, aerosol …).
  • Calculations of subsonic, sonic, or supersonic flows (turbomachines, jets …).
  • Combustion calculations …

Our vision

We believe that the development of solid expertise in numerical computation cannot be built effectively without in-depth knowledge of several areas: numerical and mathematical methods, physical models, and programming. Therefore, we strive to take an active part in all of these areas in order to provide our customers with unique added value.

We are capable to handle very complex geometry


Hundreds of volumes


Thousands of faces


Tens of thousands of edges

We can simulate very large multi-physics models (in million)


More than 1Md for steady state simulation


Transient calculations

The CFD work flow

The realization and validation of a fluid mechanics simulation require thorough expertise of each stage of the modeling process. Our team of specialist engineers’ masters all of these steps:

  • Mesh choice (choice of the type of elements, characteristics, sizes, skewness, the ratio of non-orthogonality, etc.) conditioning the validity and the robustness of the computation.
  • Physics involved in the modeled phenomenon (choice of adapted boundary conditions, turbulence models in agreement with the studied phenomenon).
  • Solver and numerical settings (pressure/velocity coupling algorithm, discretization schemes …).
  • Post-processing of the output results (temperature fields, velocity field, local exchange coefficient, scalar concentration, pressure drop …).

Steady-state and transient flows

External or internal

Rotating machinery and dynamic meshs

Thermals and mechanicals coupling

Our Skills:

RANS,DES or LES approach

N-phases flow

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G-MET Technologies is a consulting firm specialized in numerical simulations applied to computational fluid dynamics (CFD), structural mechanics, and heat transfers​. In order to know more about us or to get in touch please visit our contact page or click on the button below.