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Interpreting laminar flow using turbulence models |
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March 25, 2024, 05:22 |
Interpreting laminar flow using turbulence models
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#1 |
New Member
eddy
Join Date: Jan 2024
Posts: 20
Rep Power: 2 |
Would simulating a clear laminar phenomenon with a turbulence model yield inaccurate results?
My speculation is that since turbulence doesn't occur in clear stratification, applying a turbulence model wouldn't be appropriate for the calculations... I'm curious about this. Thanks |
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March 25, 2024, 08:16 |
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#2 | |
Senior Member
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Quote:
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March 25, 2024, 10:43 |
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#3 | |
Senior Member
Filippo Maria Denaro
Join Date: Jul 2010
Posts: 6,773
Rep Power: 71 |
Quote:
RANS formulations produce wrong solutions in general. However, there is no reason to “model” laminar flows. |
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March 26, 2024, 15:20 |
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#4 |
New Member
Alexander
Join Date: Oct 2010
Posts: 5
Rep Power: 15 |
A turbulent model adds stresses related to turbulent viscosity additionally to stresses dependent on natural fluid viscosity. If the turbulent stresses are negligible you approach to laminar behavior. Regarding OF, one needs to investigate, what laminar stress model the specific turbulent model adjusts.
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