Mixing mechanisms in turbulent pipe flow
作者:
J. E. Guilkey,
A. R. Kerstein,
P. A. McMurtry,
J. C. Klewicki,
期刊:
Physics of Fluids
(AIP Available online 1997)
卷期:
Volume 9,
issue 3
页码: 717-723
ISSN:1070-6631
年代: 1997
DOI:10.1063/1.869211
出版商: AIP
数据来源: AIP
摘要:
An experimental investigation of passive scalar mixing in turbulent pipe flow is carried out using a new non-intrusive scalar initialization technique. The measurements support a recently predicted similarity scaling of concentration spectra in flows that are unbounded in one direction. Reflecting this scaling, the scalar variance exhibits a power-law rather than exponential decay, indicating that the traditional plug-flow reactor picture of turbulent pipe-flow mixing omits key physical mechanisms.©1997 American Institute of Physics.
点击下载:
PDF
(118KB)
返 回