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Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.5

ISSN Печать: 2152-5102
ISSN Онлайн: 2152-5110

Выпуски:
Том 46, 2019 Том 45, 2018 Том 44, 2017 Том 43, 2016 Том 42, 2015 Том 41, 2014 Том 40, 2013 Том 39, 2012 Том 38, 2011 Том 37, 2010 Том 36, 2009 Том 35, 2008 Том 34, 2007 Том 33, 2006 Том 32, 2005 Том 31, 2004 Том 30, 2003 Том 29, 2002 Том 28, 2001 Том 27, 2000 Том 26, 1999 Том 25, 1998 Том 24, 1997 Том 23, 1996 Том 22, 1995

International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v26.i1.10
pages 1-16

Direct Simulation of Low-Reynolds Number Supersonic Wall-Shear Layers I: Mean Flow and One-Point Correlations

Ferhat F. Hatay
University of Colorado at Boulder, Boulder, Colorado 80309 ; University of Miami, Coral Gables, FL 33124, USA
Sedat Biringen
University of Colorado at Boulder, Boulder, Colorado 80309

Краткое описание

In the present work, a high-speed, wall-shear layer flow in the low-Reynolds-number regime is investigated using the Direct Numerical Simulation (DNS) approach. For this purpose, the three-dimensional, time-dependent, compressible Navier-Stokes equations are numerically integrated by high-order finite-difference methods; no modeling for turbulence is used because the available resolution is sufficient to capture the relevant scales at this Reynolds number. The DNS approach provides a viable means to probe the physics of low-Reynolds number incipient turbulence in compressible flows especially in the near-wall region where measuring difficulties prohibit a detailed experimental description of the flow.
In this paper, the mean flow, root-mean-square, and Fourier power spectrum distributions are presented and parameters that govern the dynamical and computational aspects of the problem are discussed. The analyses of the higher order turbulence statistics such as Reynolds stress budgets and two-point correlations are presented in a companion paper.


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