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Applied Mathematics and Mechanics

, Volume 36, Issue 6, pp 719–728 | Cite as

Spatial relation between fluctuating wall pressure and near-wall streamwise vortices in wall bounded turbulent flow

  • Mingwei GeEmail author
  • Yingtao Zuo
  • Ying Deng
  • Yuhua Li
Article

Abstract

A new view of the spatial relation between fluctuating wall pressure and near-wall streamwise vortices (NWSV) is proposed for wall bounded turbulent flow by use of the direct numerical simulation (DNS) database. The results show that the wall region with low pressure forms just below the strong NWSV, which is mostly associated with the overhead NWSV. The wall region with high pressure forms downstream of the NWSV, which has a good correspondence with the downwash of the fluids induced by the upstream NWSV. The results provide a significant basis for the detection of NWSV.

Key words

conditional correlation fluctuating wall pressure streamwise vortices 

Chinese Library Classification

O357.5 

2010 Mathematics Subject Classification

76F40 

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Copyright information

© Shanghai University and Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  1. 1.State Key Laboratory of Alternate Electrical Power System with Renewable Energy SourcesNorth China Electric Power UniversityBeijingChina
  2. 2.School of AeronauticsNorthwestern Polytechnical UniversityXi’anChina

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