I was wondering if there is a certain devise or standard testing procedure to test new designs of heat sinks. I have the freedom to design the heat sink using standard dimensions (if any).
what kind of heat sink? If the heat sink you mentioned was micro-channel heat exchanger, it's a pity that no standard testing procedure. But, if you just want to know the heat transfer performance (single phase), it is better to do some numerical simulation, which is helpful.
N fact, it is a single phase, the problem with numerical simulations is that the structure is too complex and irrigular which makes it very expensive computationally. I was hoping to find a standard to follow as in all the literature I have read the testing seems to not follow any standard and in some cases very gross assumptions are made.
yeah, if you only want to get the information of single phase, I think simulation is the best way. because simulation is exactly for some complex geometry, you can use the parameterization model to build the geometry. I have done some thing about complex heat sink simulation, in fact, if the geometry and mesh were finished, every thing will be okay
From our investigations, natural convection heat transfer coefficient do not follow the well-known correlations. Descrepancies are quite large depending upon geometry and operating parameters. It may be prudent to determine their values as close as possible to the unit under simulation. Forced convection coefficients on the other hand are quite close to correlated values. But exercise caution. Area-weighted averages are recommended to take care of fin heigths and lengths.
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