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How do I combine a flow simulation with a thermal analysis?

Question asked by Pedro Sarmiento on Apr 29, 2017
Latest reply on Apr 30, 2017 by Seckin Uslu

Hello All,


I am working on a device that I have modeled as a simple two-finned copper heatsink with a circular component nested between the fins. The device has two lateral fluid inlets and one upper fluid exhaust (see attached images). Also, the circular component is contained within a circular chamber and a heat source against the base of the heatsink provides heat to the fluid. So far I have been able to get consistent flow trajectories by setting both lateral inlets to Total Pressure and the exhaust to Static Pressure when the circular component is set to rotate at 628.32 rad/s [6000 rpm]. I have also been able to simulate the thermal analysis (heat source= 5 W; Thermal Resistance=0.0001 m^2K/W)) with all of the components in a static condition.


I am interested in determining the impact the rotating component will have on the thermal signature of the heatsink plus I would like to find out what is the temperature of the fluid at the exhaust as well as the mass flow rate (Inlet temperature= ambient; Inlet pressure = atmospheric).


Can somebody provide guidance/steps on how to combine the flow simulation and thermal analysis into a single simulation to obtain the information I need? I would also appreciate it if you could point at any good tutorial videos, articles, or books that could shine some light on the subject.


Thanks in anticipation for your help.


Pedro A. Sarmiento