I have a fluid flowing through a pipe in the ocean and there is heat transfer from the ocean to the fluid in the pipe. I prepared a simulation and the results show that if I increase the mass flow rate of the fluid through the pipe then the heat transfer rate to the fluid increases and the outlet temperature increases.
These results don't seem right to me. I would think if the heat transfer rate increases, then the outlet temperature should also increase. Does anyone have any suggestions as to why my intuition might be wrong? It is also quite possible the simulation could be wrong.