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July 2, 2020, 07:01 |
Turbulence: Inertial Subrange Question
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#1 |
Senior Member
Join Date: Dec 2019
Location: Cologne, Germany
Posts: 355
Rep Power: 8 |
hi all,
i'm performing an analysis with my simulation. i want to determine the inertial subrange in my domain. the lower boundary is calculated by: l_DI = 60 * eta = 60 * (kinematicViscosity^3 / epsilon)^0.25 the upper boundary is calculated by: l_EI = 1/6 * k^(3/2) / epsilon source: http://www.bakker.org/dartmouth06/engs150/09-kolm.pdf also same equations can be found in Andersson et al., Computational Fluid Dynamics for Engineers however, when i output the result my lower boundary is always higher than my upper boundary, which can't be correct, bc per definition it should be vice versa. does anybody know whats wrong here? king regards |
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