Submitted:
07 December 2022
Posted:
08 December 2022
You are already at the latest version
Abstract
A formula for the turbulent Prandtl number is derived in terms of local variables available from two-equations turbulence models. The derivation is a direct consequence of the expected square additivity of the molecular and turbulent parameters defining the effective viscosity and the effective conductivity. The formula does not degenerate and leads to a Kays like formulation if approximated. Its utility and its limitation are discussed.
Keywords:
Prandtl number
; turbulent Prandtl number
; turbulence model
; turbulent thermal conductivity
; Heavy Liquid Metal
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