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How to selecting the turbulence specification method |
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April 22, 2022, 08:09 |
How to selecting the turbulence specification method
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#1 |
New Member
Khairul
Join Date: Apr 2022
Location: Malaysia
Posts: 7
Rep Power: 4 |
Hello, how to choose the turbulence specification method
- my project specification - Sudden contraction 90* - 5/5 m/s inlet - Turbulence flow - 2D geometry In boundary condition, for inlet part How to choose turbulence specification method |
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April 22, 2022, 09:50 |
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#2 |
Senior Member
Lucky
Join Date: Apr 2011
Location: Orlando, FL USA
Posts: 5,746
Rep Power: 66 |
It's just a matter of which parameters you actually know and find most convenient. At the end of the day, what actually gets specified is the values of your transport variables: k and epsilon, k and omega, and so on. If you want to learn how to do it the correct way, then choose k and epsilon (or omega, or whatever) and input these values directly. When you go and try to estimate k and epsilon, you'll find that you more-often-than-not use turbulence intensity and some type of length scale because these are more universal parameters that you can translate between different geometries very easily whereas k and epsilon are scale specific.
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