Sixth International Symposium on Turbulence and Shear Flow Phenomena
DOI: 10.1615/TSFP6
MODELLING HIGH SCHMIDT NUMBER TURBULENT SCALAR TRANSPORT ACROSS AIR-WATER INTERFACES
pages 545-550
DOI: 10.1615/TSFP6.870
ABSTRAKT
An extended version of the analytical wall-function (AWF) is presented for solving mass transfer fields across air-water interfaces. By considering exact near-surface limiting profiles of turbulence quantities such as the eddy viscosity and the turbulent scalar ux, the prescribed turbulent diffusivity profile, which is a core assumption of the AWF, is modelled to have the correct limiting behaviour. The resultant AWF performs well to predict turbulent concentration flelds under air-water interfaces at the Schmidt numbers of 1 ≤ Sc ≤ 1000.