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Heat from components not flowing into heat sink in Creo Flow Analysis

dking-2
5-Regular Member

Heat from components not flowing into heat sink in Creo Flow Analysis

Hi All,

 

 I'm running 3 scenarios to try out differing heat sink designs and placements. I have successfully run 2 of these scenarios, but in the 3rd one the heat is not transferring to the heat sink from the components. The components are constrained to the heat sink the same way, and the same materials, as in the first two scenarios. Does anyone know what could be causing this problem?

1 ACCEPTED SOLUTION

Accepted Solutions
dking-2
5-Regular Member
(To:bduncan)

I was able to find a solution with help from PTC Support. I had to change the accuracy of all components from relative to absolute.

View solution in original post

5 REPLIES 5
bduncan
15-Moonstone
(To:dking-2)

In theory, this should not happend
bduncan
15-Moonstone
(To:dking-2)

Can U upload attachments?

dking-2
5-Regular Member
(To:bduncan)

I've attached them to this comment. Picture 2021-02-16 shows the problem. Heatsink 1 close 10W shows the previous analysis where all settings are the same.

bduncan
15-Moonstone
(To:dking-2)

if it possible,you'd better upload the creo Component ,only pictures,we can't find the problem

dking-2
5-Regular Member
(To:bduncan)

I was able to find a solution with help from PTC Support. I had to change the accuracy of all components from relative to absolute.

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