OpenFOAM has two solvers (chtMultiRegionFoam and chtMultiRegionSimpleFoam )  for the simulation of heat transfer across different materials.  When a solver has the keyword simple in its name in OpenFOAM, it means it uses SIMPLE algorithm for pressure-velocity decoupling, Moreover, it represents it is a steady solver.

here, I mention two conjugate heat transfer problems I’ve done using these solvers:

  • transient heat transfer between two co-center pipes.


  • airflow over heated obstacles is simulated based on Ref [1]. The velocity contour and solid temperature are shown below
velocity and temperature contour for airflow over obstacles, simulation is done with chtMultiRegionSimpleFoam



  1. Young, T.J. and Vafai, K., 1998. Convective flow and heat transfer in a channel containing multiple heated obstacles. International Journal of Heat and Mass Transfer, 41(21), pp.3279-3298.

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