Learning Forum

[vsjay3]

Hi Array thank you very much for your reply. Yes the green domain is sand layer nSand is the top green rectangle and soil is the brown bottom rectangle.nSo the boundary conditions are a lot to list individually and may confuse you, so to save your time I will bunch them up :nsand - right wall, left wall, front wall and back wall = zero heat flux conditionnsand top wall = constant temperature of 70Cnpipe wall (iron) which is outside the sand = zero heat flux conditionnpipe wall inside sand = thermally coupled condition with sandncoolant and pipe wall = thermally coupled conditionnsoil - right wall, left wall, front wall and back wall = zero heat flux conditionnsoil bottom wall = constant temperature of 30Cnsand and soil contact wall = thermally coupled conditionnAlso yes, I believe that the mesh is conformal since it is one part and 4 bodies.nAre you telling me the free part of the pipe wall and coolant outside the sand is creating the issue?n