Numerical investigation of turbulent flow and scalar transport in an inclined jet in crossflow

J. Bodart, F. Coletti, I. Bermejo Moreno, J. K. Eaton

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

An inclined jet in crossflow, characteristic of film cooling applications is studied with highly resolved LES. The configuration reproduces an experimental set-up in which three dimensional measurements of mean velocity and mean flow concentration have been performed using MRV/MRC completed with PIV measurements at some specific locations. The simulations are shown to capture with high fidelity both the separated flow inside the film cooling hole and the distribution of scalar concentration downstream of injection. This paper focuses on the gradient-diffusion hypothesis for the scalar fluxes in RANS modeling. In this configuration we show a large misalignment between turbulent scalar fluxes and the scalar concentration gradient in the streamwise direction.

Original languageEnglish (US)
Title of host publicationInternational Symposium on Turbulence and Shear Flow Phenomena, TSFP 2013
PublisherTSFP-8
ISBN (Electronic)9780000000002
StatePublished - 2013
Event8th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2013 - Poitiers, France
Duration: Aug 28 2013Aug 30 2013

Publication series

NameInternational Symposium on Turbulence and Shear Flow Phenomena, TSFP 2013
Volume2

Other

Other8th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2013
Country/TerritoryFrance
CityPoitiers
Period8/28/138/30/13

Bibliographical note

Funding Information:
Dr. Coletti was supported by a grant from Honey-well Corp. Computations have been performed on the Vulcan IBM Blue Gene/Q system at Lawrence Livermore National Laboratory, funded by the Advanced Simulation and Computing (ASC) Program of the National Nuclear Security Administration (NNSA). Access to Vulcan clusters was provided through the Predictive Science Academic Alliance Program (PSAAP) and is greatly acknowledged.

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