Regularization of Wall-wall Turbulence by Discrete Roughness Element

Chong Pan; Jianjie Wang; Ning Zhou; Jinjun Wang

doi:10.1016/j.proeng.2015.11.186

Regularization of Wall-wall Turbulence by Discrete Roughness Element

Chong Pan^*
, Jianjie Wang
, Ning Zhou
, Jinjun Wang

^*Corresponding author for this work

School of Aeronautic Science and Engineering

Beihang University

Research output: Contribution to journal › Conference article › peer-review

Abstract

This paper deals with an experiment effort on regularizing the near-wall flow-field of a zero-pressure-gradient turbulent boundary layer via passive discrete roughness elements. The major concept is to introduce quasi-steady wake of spanwise-Aligned roughness elements into the near-wall region of wall turbulence, so that the mean spanwise spacing of low-speed streaks in the near wall region can be modulated.

Original language	English
Pages (from-to)	98-102
Number of pages	5
Journal	Procedia Engineering
Volume	126
DOIs	https://doi.org/10.1016/j.proeng.2015.11.186
State	Published - 2015
Event	7th International Conference on Fluid Mechanics, ICFM 2015 - Qingdao, China Duration: 24 May 2015 → 27 May 2015

Keywords

flow control
low-speed streak
turbulent coherent structures

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10.1016/j.proeng.2015.11.186

Cite this

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title = "Regularization of Wall-wall Turbulence by Discrete Roughness Element",

abstract = "This paper deals with an experiment effort on regularizing the near-wall flow-field of a zero-pressure-gradient turbulent boundary layer via passive discrete roughness elements. The major concept is to introduce quasi-steady wake of spanwise-Aligned roughness elements into the near-wall region of wall turbulence, so that the mean spanwise spacing of low-speed streaks in the near wall region can be modulated.",

keywords = "flow control, low-speed streak, turbulent coherent structures",

author = "Chong Pan and Jianjie Wang and Ning Zhou and Jinjun Wang",

note = "Publisher Copyright: {\textcopyright} 2015 The Authors.; 7th International Conference on Fluid Mechanics, ICFM 2015 ; Conference date: 24-05-2015 Through 27-05-2015",

year = "2015",

doi = "10.1016/j.proeng.2015.11.186",

language = "英语",

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AU - Pan, Chong

AU - Wang, Jianjie

AU - Zhou, Ning

AU - Wang, Jinjun

PY - 2015

Y1 - 2015

N2 - This paper deals with an experiment effort on regularizing the near-wall flow-field of a zero-pressure-gradient turbulent boundary layer via passive discrete roughness elements. The major concept is to introduce quasi-steady wake of spanwise-Aligned roughness elements into the near-wall region of wall turbulence, so that the mean spanwise spacing of low-speed streaks in the near wall region can be modulated.

AB - This paper deals with an experiment effort on regularizing the near-wall flow-field of a zero-pressure-gradient turbulent boundary layer via passive discrete roughness elements. The major concept is to introduce quasi-steady wake of spanwise-Aligned roughness elements into the near-wall region of wall turbulence, so that the mean spanwise spacing of low-speed streaks in the near wall region can be modulated.

KW - flow control

KW - low-speed streak

KW - turbulent coherent structures

UR - https://www.scopus.com/pages/publications/84971236551

U2 - 10.1016/j.proeng.2015.11.186

DO - 10.1016/j.proeng.2015.11.186

M3 - 会议文章

AN - SCOPUS:84971236551

SN - 1877-7058

VL - 126

SP - 98

EP - 102

JO - Procedia Engineering

JF - Procedia Engineering

T2 - 7th International Conference on Fluid Mechanics, ICFM 2015

Y2 - 24 May 2015 through 27 May 2015

ER -

Regularization of Wall-wall Turbulence by Discrete Roughness Element

Abstract

Keywords

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