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#1 |
New Member
Maksim
Join Date: Jul 2020
Posts: 10
Rep Power: 5 ![]() |
Greetings, everyone!
I work on the modeling of compressible turbulent flows, and as a part of simulation i should somehow model turbulent diffusive heat flux, which appears in filtered equation of total energy. There is an ambiguity in the papers on how to do it. The two main approaches are ![]() ![]() ![]() ![]() Where ![]() ![]() Authors of papers do not provide arguments on the choice of the diffusive flow representation, and so i struggle to choose, which variant i should implement in my code? |
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#2 |
Senior Member
Lucky
Join Date: Apr 2011
Location: Orlando, FL USA
Posts: 5,704
Rep Power: 66 ![]() ![]() ![]() |
It depends on whether your energy equation is written in internal energy or enthalpy and how the total energy is tracked (whether it includes pressure work or not). In other words, you have to write out the entire energy equation, you cannot get your answer by only looking at this one term. It is indeed ambiguous when you leave out the entire equation.
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#3 |
New Member
Maksim
Join Date: Jul 2020
Posts: 10
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Tags |
compressible flow, turbulence |
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