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How to calculate energy dissipation

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Old   February 23, 2004, 07:36
Default How to calculate energy dissipation
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Hi Friends, I am doing the DNS of the round jet with axisymmetric cylindrical cordinates, i want to calculate the kolmogorov scale , for that i found in the literature to calculate the kolmogorov scale as Lk=(nu**3/epsilon)**(1/4) for calculating epsilon the formula is rho*nu*(((dhoui/dhoxj)+dhouj/dhoxi))*(dhouj/dhoxi))/rho all are favre avaraged. my doubt is how to calculate this epsilon, if any body is allready did this please help me. thankyou for ur attention.
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