CFD optimization and sizing of heat exchangers

Our expertise

G-MET Technologies proposes to carry out numerical simulations of optimization and the dimensioning (thermohydraulic and mechanical) for heat exchanger (tubular, plates, exotic …).

  • Best-estimate approach
  • 3D approach with porous media approach.
  • 3D local calculations for the determination of pressure drop and heat exchange coefficient. Obtaining numerical correlations that can be implemented in a “macro” tool for dimensioning.
  • Two-phase flow computations (steam generator, evaporator, condenser) for approaches in porous media.

Bundle VIV – OpenFOAM

Examples of CFD sizing and optimization of heat exchangers

Temperature field and 3D streamline, mesh

CFD optimization of a gas-gas exchanger - 75 Million cells

  • Design optimization, verification of operating points. Determination of temperature field for thermomechanical dimensioning.
  • Best-estimate approach.
  • Validation of the computation: sensitivity to the mesh, models of turbulence, treatment in wall.
  • Calculations carried out using ANSYS CFX.
Tetrahedral mesh (20 M), temperature field, streamline

Performance calculations of a plate heat exchanger

  • Calculation of heat transfert coefficient and local pressure drops coefficient.
  • Sensitivity analysis and determination of optimial design.
  • Validation of the calculation: sensitivity to the mesh, wall treatment, numerics…
  • Calculations carried out using ANSYS CFX.
Tetrahedral mesh (50 M), temperature field, streamline

CFD analysis for plate and frame heat exchanger.

  • Analysis of the flow distribution (dissymmetries etc..).
  • Influence of the thickness of the plates, flow, choice of materials…
  • Calculations carried out using ANSYS CFX.
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