Heat Sink (Ansys Workbench)

Conducting a thermal analysis of an aluminum heat sink.

A fan forces air over all surfaces of the heat sink except for the base, where a heat flux q’ is prescribed. The surrounding air is 28°C with a heat transfer coefficient of h = 30 W/(m2 ⋅ °C)

(Part A~ Steady State thermal Analysis): Analyze the steady-state thermal response of the heat sink with an initial temperature of 28°C and a constant heat flux input of q’ = 1000 W/m2.

(Part B ~ Transient thermal Analysis): Suppose the heat flux is a square wave function with period of 90 seconds and magnitudes transitioning between 0 and 1000 W/m2. Analyze the transient thermal response of the heat sink in 180 seconds by using the steady-state solution as the initial condition.

(Part C ~ Thermal stress Analysis): Suppose the base of the heat sink is fixed. Analyze the thermal stress response of the heat sink by using the steady-state solution as the temperature load.

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