Learning Forum

[seoyunjeong]

When interpreting internal flow, what value does initial temperature mean?
How do the initial temperature and the inlet temperature set point show different results?
In the example in the Discovery Forum, the initial temperature of the thermal mixer is set to 30 degrees and the temperature of the inlet is set to 80 degrees. Please explain the difference between the two.

[Charudatta Bandgar]

Hello 정서윤 ,

 

The initial temperature is the temperature of entire control volume (physics region) as an initial condition, whereas the inlet temperature is temperature defined at the inlet/outlet port as boundary condition. 

It was not clear which software you were using, but since this is a more generic CFD question, please refer to the AIM documentation for fluid flow physics region, for better understanding.