Direct numerical simulation of an equilibrium adverse pressure gradient turbulent boundary layer at the verge of separation

Vassili Kitsios*, Callum Atkinson, Juan A. Sillero, Guillem Borrell, Ayse Gul Gungor, Javier Jiménez, Julio Soria

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

Abstract

The statistics and structure of a self-similar equilibrium adverse pressure gradient (APG) turbulent boundary layer (TBL) are investigated using a direct numerical simulation (DNS) of the flow at the verge of separation. Flow simulations are performed using the DNS TBL code of Simens et al. [8] and Borrell et al. [1] with the desired equilibrium APG achieved via the use of a tailored far-field boundary condition. The APG TBL develops over a momentum thickness based Reynolds number of Reθ ≈ 2000 to 6000, achieving a region of constant friction coefficient (Cf), pressure velocity (up) and shape factor (H). One- and two-point statistics are presented under both inner wall (uτ) and pressure velocity (up) based scaling.

Original languageEnglish
Publication statusPublished - 2015
Event15th European Turbulence Conference, ETC 2015 - Delf, Netherlands
Duration: 25 Aug 201528 Aug 2015

Conference

Conference15th European Turbulence Conference, ETC 2015
Country/TerritoryNetherlands
CityDelf
Period25/08/1528/08/15

Bibliographical note

Publisher Copyright:
© TU Delft.

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