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Integrated conjugate heat transfer solver in OpenFOAM |
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December 21, 2007, 05:06 |
Hi All,
I have recently rel
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Hrvoje Jasak
Join Date: Mar 2009
Location: London, England
Posts: 1,905
Rep Power: 33 |
Hi All,
I have recently released a top-level solver and tutorial for conjugate heat transfer simulations in OpenFOAM using a new coupled matrix approach. The new classes allow you to create a multi-mesh domain and couple equations on various meshes on a per-variable basis. For example, in conjugate heat transfer, flow equations are solver only on a fluid mesh, while the energy equation is solved in a coupled manner for the fluid and solid domain at the matrix level. A code snippet showing how the coupling is achieved is given below: coupledFvScalarMatrix TEqns(2); // Add fluid equation TEqns.set ( 0, new fvScalarMatrix ( fvm::ddt(T) + fvm::div(phi, T) - fvm::laplacian(DT, T) ) ); // Add solid equation TEqns.set ( 1, new fvScalarMatrix ( fvm::ddt(Tsolid) - fvm::laplacian(DTsolid, Tsolid) ) ); TEqns.solve(); As a good object-oriented citizen I have implemented the machinery to allow arbitrary multi-mesh and multi-variable coupling: this allows you to tackle any coupled problems involving multiple meshes. Code: OpenFOAM-1.4.1-dev/applications/solvers/conjugate/conjugateHeatFoam Tutorial case: OpenFOAM-1.4.1-dev/tutorials/conjugateHeatFoam/conjugateCavity + heatedBlock Enjoy, Hrv
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Hrvoje Jasak Providing commercial FOAM/OpenFOAM and CFD Consulting: http://wikki.co.uk |
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