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

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

  • transient heat transfer between two co-center pipes.
simulation of transient heat transfer between co-center pipe using chtMultiRegionFoam
  • air flow over heated obstacles are simulated based on Ref [1]. The velocity contour and solid temperature is shown blow
velocity and temperature contour for air flow 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.