Authors: Xiaofeng Liu Flint O Thomas
Publish Date: 2004/07/06
Volume: 37, Issue: 4, Pages: 469-482
Abstract
Turbulent kinetic energy TKE budget measurements were conducted for a symmetric turbulent planar wake flow subjected to constant zero favorable and adverse pressure gradients The purpose of this study is to clarify the flow physics issues underlying the demonstrated influence of pressure gradient on wake development and provide experimental support for turbulence modeling To ensure the reliability of these notoriously difficult measurements the experimental procedure was carefully designed on the basis of an uncertainty analysis Three different approaches were applied for the estimate of the dissipation term An approach for the determination of the pressure diffusion term together with correction of the bias error associated with the dissipation estimate is proposed and validated with the DNS results of Moser et al J Fluid Mech 1998 367255–289 This paper presents the results of the turbulent kinetic energy budget measurement and discusses their implications for the development of strained turbulent wakes
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