Direct numerical simulation of a self-similar adverse pressure gradient turbulent boundary layer

V. Kitsios*, C. Atkinson, J. A. Sillero, G. Borrell, A. G. Gungor, J. Jiménez, J. Soria

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

51 Citations (Scopus)

Abstract

The statistical properties of a self-similar adverse pressure gradient (APG) turbulent boundary layer (TBL) are presented. The flow is generated via the direct numerical simulation of a TBL on a flat surface with a farfield boundary condition designed to apply the desired pressure gradient. The conditions for self-similarity and appropriate scaling are derived, with the mean profiles, Reynolds stress profiles, and turbulent kinetic energy budgets non-dimensionalised using this scaling. The APG TBL has a momentum thickness based Reynolds number range from Reδ2=300 to 6000, with a self-similar region spanning a Reynolds number range from Reδ2=3500 to 4800. Within this range the non-dimensional pressure gradient parameter β=1. Two-point correlations of each of the velocity components in the streamwise/wall-normal plane are also presented, which illustrate the statistical imprint of the structures in this plane for the APG TBL.

Original languageEnglish
Pages (from-to)129-136
Number of pages8
JournalInternational Journal of Heat and Fluid Flow
Volume61
DOIs
Publication statusPublished - 1 Oct 2016

Bibliographical note

Publisher Copyright:
© 2016 Elsevier Inc.

Funding

The authors would like to acknowledge the research funding from the Australian Research Council , and the computational resources provided by the Australian National Computational Infrastructure, iVEC and PRACE. Julio Soria gratefully acknowledges the support of an Australian Research Council Discovery Outstanding Researcher Award fellowship.

FundersFunder number
Australian Research Council
Partnership for Advanced Computing in Europe AISBL

    Keywords

    • Adverse pressure gradient
    • Direct numerical simulation
    • Turbulent boundary layer

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