Numerical investigation of the near-wall turbulent characteristics in stably stratified channel flow

Kyongmin Yeo, Changhoon Lee

Research output: Contribution to conferencePaper

Abstract

To investigate the characteristics of stably stratified turbulent channel flows, direct numerical simulations of low-Reynolds number flows are performed. It is shown that the mechanism responsible for the turbulent kinetic energy is modified, although the quantity summed over the wavenumbers shows no significant changes. It is found that the dispersion in the streamwise direction is enhanced while those in the wall-normal and spanwise directions are suppressed. The Kolmogorov and buoyancy scales and model parameters such as the von Kàrman constant and turbulent Prandtl number are presented.

Original languageEnglish
Pages449-454
Number of pages6
Publication statusPublished - 2005 Dec 1
Event4th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 4 - Williamsburg, VA, United States
Duration: 2005 Jun 272005 Jun 29

Other

Other4th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 4
CountryUnited States
CityWilliamsburg, VA
Period05/6/2705/6/29

All Science Journal Classification (ASJC) codes

  • Fluid Flow and Transfer Processes

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    Yeo, K., & Lee, C. (2005). Numerical investigation of the near-wall turbulent characteristics in stably stratified channel flow. 449-454. Paper presented at 4th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 4, Williamsburg, VA, United States.