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Influence of the Wind Tunnel Model Mounting on the Wake Evolution of the Common Research Model in Post Stall Read chapter Read first chapter

2021 | OriginalPaper | Chapter

Stochastic Modeling of Passive Scalars in Turbulent Channel Flows: Predictive Capabilities of One-Dimensional Turbulence

Authors : Marten Klein, Heiko Schmidt

Published in: New Results in Numerical and Experimental Fluid Mechanics XIII

Publisher: Springer International Publishing

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Abstract

Numerical simulations of passive scalars in turbulent channel flows up to friction Reynolds number \(Re_\tau =5{,}200\) and Schmidt number \(Sc=2{,}000\) are performed by utilizing the stochastic one-dimensional turbulence (ODT) model as stand-alone tool. The model is calibrated once for the turbulent velocity boundary layer at \(Re_\tau =5{,}200\) so that the passive scalar is a model prediction. ODT is able to reproduce with reasonable accuracy the scaling regimes of the scalar transfer and locally resolve the boundary layer structure. Albeit the model is unable to capture the emerging dissimilarity of near-wall scalar and momentum transport for high Sc, it can economically and accurately represent fluctuating wall-normal fluxes.

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Metadata
Title
Stochastic Modeling of Passive Scalars in Turbulent Channel Flows: Predictive Capabilities of One-Dimensional Turbulence
Authors
Marten Klein
Heiko Schmidt
Copyright Year
2021
Book
New Results in Numerical and Experimental Fluid Mechanics XIII

Print ISBN: 978-3-030-79560-3

Electronic ISBN: 978-3-030-79561-0

Copyright Year: 2021

DOI
https://doi.org/10.1007/978-3-030-79561-0_5

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