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-   -   low reynolds settings for kOmega and kEpsilon turbulence models (https://www.cfd-online.com/Forums/openfoam-solving/211381-low-reynolds-settings-komega-kepsilon-turbulence-models.html)

emjay November 14, 2018 15:29

low reynolds settings for kOmega and kEpsilon turbulence models
 
hello community,

may someone have a short and correct answer howto set up the wall boundary conditions for walls with an full resolved mesh (y+ ~1 / low reynolds approach).
(case is also incompressible)

kOmegaSST model for walls:
  • U -> noSlip
  • p -> zeroGradient
  • k -> fixedValue (0 or 1e-12)
  • omega -> ???
  • nut -> calculated?

kEpsilon model for walls:
  • U -> noSlip
  • p -> zeroGradient
  • k -> fixedValue (0 or 1e-12)
  • epsilon -> ???
  • nut -> calculated?

thank you in advance!


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