src/base/hturbp.f90 File Reference

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Functions/Subroutines
hturbp.f90 File Reference

## Functions/Subroutines
subroutine | hturbp (prl, prt, ckarm, yplus, dplus, htur, yplim)
| Compute the correction of the exchange coefficient between the fluid and the wall for a turbulent flow. More...

## Function/Subroutine Documentation

subroutine hturbp | ( | double precision | prl,
|  | double precision | prt,
|  | double precision | ckarm,
|  | double precision | yplus,
|  | double precision | dplus,
|  | double precision | htur,
|  | double precision | yplim
| ) |  |

Compute the correction of the exchange coefficient between the fluid and the wall for a turbulent flow.

This is function of the dimensionless distance to the wall .

Then the return coefficient reads:

This coefficient is computed thanks to a similarity model between dynamic viscous sub-layer and themal sub-layer.

is computed as follows:

- For a laminar Prandtl number smaller than 0.1 (such as liquid metals), the standard model with two sub-layers (Prandtl-Taylor) is used.

- For a laminar Prandtl number larger than 0.1 (such as liquids and gaz), a model with three sub-layers (Arpaci-Larsen) is used.

The final exchange coefficient is:

Parameters

  [in] | prl | laminar Prandtl number
  [in] | prt | turbulent Prandtl number
  [in] | ckarm | Von Karman constant
  [in] | yplus | dimensionless distance to the wall
  [in] | dplus | dimensionless distance for scalable wall functions
  [out] | htur | corrected exchange coefficient
  [out] | yplim | value of the limit for