Performance of a transverse vorticity probe in a turbulent channel flow

被引：0

作者：

T. Zhou

R. A. Antonia

Y. Zhu

P. Orlandi

P. Esposito

机构：

[1] Department of Mechanical Engineering,

[2] University of Newcastle,undefined

[3] Newcastle,undefined

[4] NSW,undefined

[5] 2308,undefined

[6] Australia,undefined

[7] Dipartimento di Meccanica e Aeronautica,undefined

[8] Universita Degli Studi di Roma “La Sapienza”,undefined

[9] I-00184 Rome,undefined

[10] Italy,undefined

[11] INSEAN—Istituto Nazionale per Studi ed Esperienze di Architettura Navale,undefined

[12] Via di Vallerano 139,undefined

[13] I-00128 Rome,undefined

[14] Italy,undefined

来源：

Experiments in Fluids | 1998年 / 24卷

关键词：

Vorticity; Acceptable Level; Channel Flow; Momentum Equation; Direct Numerical Simulation;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The performance of a four hot-wire transverse vorticity probe is tested by comparing measurements in a fully developed turbulent channel flow with corresponding data obtained from direct numerical simulations (DNS) of the same flow. In the inner region, the probe performs poorly, the rms vorticities being consistently smaller than the DNS values. In the outer region of the flow, there is reasonable agreement between measured and DNS vorticity statistics, especially after correcting the measurements for the effect of spatial resolution. In this region, the imbalance indicated by the vorticity form of the streamwise momentum equation is approximately constant. The magnitude of the imbalance can be reduced to an acceptable level of accuracy by considering sources of error which affect the velocity–vorticity correlations.

引用

页码：510 / 517

页数：7