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Old   June 12, 2020, 10:42
Default Transport properties
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mukund
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I'm simulating an external flow over an airfoil. When I try to change the value of kinematic viscosity in transport properties file for any turbulent model, be it spallart allmarus or k-omega SST, the result will remain the same as that of the original case file. How can I change this?
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Old   June 12, 2020, 12:40
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Ardalan
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What do you mean exactly?
You change a value and the result remain the same. The flow over an airfoil is very abstract. What is angle of attack, what is Re number, which airfoil are you studying?
In general the flow over an airfoil in not that sensitive to small change of nu.
If you have separation and reattachment that is difficult issue which SA or SST have problem in capturing. Anyway, small change of nu does not change anything. In practice, you increase your Re in turbulent region. So what do you expect?


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Old   June 15, 2020, 03:22
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Domenico Lahaye
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turbulence model settings in constant/turbulenceProperties
transport properties in constant/transportProperties
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