[hank0301]

In FloTHERM, it is easily t create a compact heat sink model, like the left one.

But how to build a compact one in XT?
It seems no option of detail/ compact in heatsink property sheet.

Even tried to build it in FloTHERM and export to pdml file, read by XT and got feedback not support this surface exchange type.

[Gabriel_C]

Hello.
The compact heatsink modeling is taken from the years 2000 (version 3.1). In Flotherm XT I guess that's the point of partial cells that you do not need to simplify the heatsink. And in the case of an extraordinary big heatsink (like car radiator - many narrow fins) you could use FloEFD that has an aproximation with porous medium - I've seen an presentation since I'm not a floefd user.
Br, gabriel

[hank0301]

Originally Posted by Gabriel_C

Hello.
The compact heatsink modeling is taken from the years 2000 (version 3.1). In Flotherm XT I guess that's the point of partial cells that you do not need to simplify the heatsink. And in the case of an extraordinary big heatsink (like car radiator - many narrow fins) you could use FloEFD that has an aproximation with porous medium - I've seen an presentation since I'm not a floefd user.
Br, gabriel

Thanks for Gabriel's advice!
The purpose is not simplify the sink model by quick button like "compact model". There is a good way to use physical test results to replace the calculated flow impedance and thermal resistance with table setting.
It is good in FloTHERM, but I cannot find it in XT.
I'll try to find if it is possible in EFD, and let all know it.