|
[Sponsors] |
August 3, 2023, 05:19 |
Incorrect Temperature Values
|
#1 |
New Member
Geetanjali Alle
Join Date: Aug 2023
Posts: 4
Rep Power: 3 |
Hi. I am simulating an aluminium heat sink with 12 copper heat sources each dissipating 6W of power. I am getting temperatures in the range of 4000s deg C but I am unable to figure out the issue.
I am using Boolean operation to subtract my geometry from the fluid domain and using a body sizing for the source and a adaptive mesh sizing. I am using cell zone conditions to define the heat source with heat generation rate of 3.75e7 W/M3. I am defining a velocity inlet with 0.5 m/s and a pressure outlet. I am using a laminar model with ambient conditions of 60 deg C. I ran the same in SST thermal and got a value of 130 deg C which seems like a correct estimation. I am required to do the same in Fluent. Please help me out. |
|
August 4, 2023, 05:28 |
|
#2 |
Senior Member
Moritz Kuhn
Join Date: Apr 2010
Location: Germany, Dresden
Posts: 208
Rep Power: 17 |
Check the energy belance, to figure out that you have in total 72 W. Try to start with a small heat generation rate and look to the temperatures.
|
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
[openSmoke] libOpenSMOKE | Tobi | OpenFOAM Community Contributions | 562 | January 25, 2023 09:21 |
C_P(c,t) is giving incorrect values. | Hershey | Fluent UDF and Scheme Programming | 3 | July 28, 2015 23:26 |
Calculation of the Governing Equations | Mihail | CFX | 7 | September 7, 2014 06:27 |
Temperature shooting up to unrealistic values! | shashank312 | FLUENT | 0 | March 27, 2013 23:22 |
[swak4Foam] adjust inlet temperature depending on values of monitor points (groovyBC) | braennstroem | OpenFOAM Community Contributions | 2 | May 31, 2011 13:45 |