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epsilon as implicit term in kEqn's

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Old   March 3, 2021, 11:06
Default epsilon as implicit term in kEqn's
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Agustín Villa
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I have remarked that in several turbulence models where the turbulent kinetic energy is solved, the dissipation term appears as:


Code:
 - fvm::Sp(alpha*rho*epsilon_/k_, k_)

and I was wondering the reason behind this piece of code. ¿Does it give some stability? As far as I see, if all the left input is constant, it means that the contribution of epsilon on the equation will be affected by the factor k_calculated/k.


¡Thank you for your answers!
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