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low reynolds settings for kOmega and kEpsilon turbulence models

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Old   November 14, 2018, 15:29
Question low reynolds settings for kOmega and kEpsilon turbulence models
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Marko Josic
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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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full resolved mesh, kepsilon, komegasst, lowre

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