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January 12, 2021, 08:36 |
How do you initialize k and espilon ?
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#1 |
New Member
Kermit
Join Date: Jan 2021
Location: France
Posts: 19
Rep Power: 5 |
Hello everyone!
I recently post a thread where I asked if anybody knows why my simulation diverges when I modify the value of nu from 1e-3 to 1e-6. I did several unsuccessful attempts to correct that issue by modifying schemes and boundary conditions but none of those modifications resolved my problem, except one !! Indeed, when I increased the initial value of epsilon from 1.8e-2 to 10, the simulation ran without problem and the results seems to be good when I compare them with theory. As mentioned in the title, I'd like to know how do you set up the values of k, epsilon and also nut when you want to run a simulation with the k-espilon model (simpleFoam)? Note that I've used the definition in the User Guide (https://www.openfoam.com/documentati...k-epsilon.html) to initialize k and espilon. Thanks for your help ! |
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Tags |
epsilon, initial condition, kinetic energy, nut, simplefoam |
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