I am trying to run a conjugate heat transfer analysis for a 2D system. I am trying to understand the temperature evolution profile of the blocks as hot air is blown across it.
As you can see, initially the temperature of the air is patched to be 500 and that of the block is around 300. I have modeled it with aluminium as the material.
When I run a steady state conjugate heat transfer analysis, I get results as shown below :
This makes sense since at steady state the block will eventually reach the temperature of the hot air blowing across it.
But when I run a transient simulation, my temperature profiles after a small interval of time are as shown below :
Zooming in further :
It looks like the thermal gradients only develop on the fluid side and not in the interior of the solid. I reran the simulation with a very high thermal conductivity and I still get the same result. Also - I probed the nodes to find the temperature values and those on the block still remain to be at 300 K. Is there something I am missing out in my simulation modeling ?
Left end - Velocity Inlet
Right end - Pressure Outlet
Walls - Adiabatic
Block - Modeled with Aluminium (also modeled it with very high conductivity in second trail)
I look forward to your response.