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April 29, 2012, 05:24 |
Turbulence intensity
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#1 |
New Member
Join Date: Apr 2012
Posts: 6
Rep Power: 13 |
Hello community,
I do some simulations in an artificial homogeneous isotropic turbulence where k and eps are given. Does anyone know, how to calculate the turbulence intensity out of these values? Thanks so long. |
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April 29, 2012, 07:29 |
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#2 |
Senior Member
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You can just take a look at Fluent manual
6.2.2 determining the turbulence parameters Relationships between the turbulence quantities e.g. here http://jullio.pe.kr/fluent6.1/help/html/ug/node178.htm Truffaldino |
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May 3, 2012, 04:27 |
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#3 |
New Member
Join Date: Apr 2012
Posts: 6
Rep Power: 13 |
Thanks for that link. My problem is, that in a homogeneous isotropic turbulence the average fluid velocity is 0? That means I cannot calculate the turbulence intensity with the given formulas. Does anybody know, how to solve my problem. Or maybe I am wrong.
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May 3, 2012, 10:53 |
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#5 |
New Member
Join Date: Apr 2012
Posts: 6
Rep Power: 13 |
I am simulating particle collisions using a Lagrangian code. The fluent is just given by k and eps in the domain. The local fluid velocity for particle tracking is calculated using k and eps by a langevin dispersion model. For characterising the turbulence I want to give the turbulence intensity.
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