Mixing in Turbulent Flows: An Overview of Physics and Modelling

Processes

Jacek Pozorski¹  Marta Wacławczyk² 

[1] Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Fiszera 14, 80231 Gdańsk, Poland;Institute of Geophysics, Faculty of Physics, University of Warsaw, Pasteura 5, 02093 Warsaw, Poland;

关键词: mixing;    turbulence;    scalar variables;    PDF method;    Reynolds-averaged Navier–Stokes;    FDF method;   

DOI  :  10.3390/pr8111379

来源: DOAJ

【 摘 要 】

Turbulent flows featuring additional scalar fields, such as chemical species or temperature, are common in environmental and industrial applications. Their physics is complex because of a broad range of scales involved; hence, efficient computational approaches remain a challenge. In this paper, we present an overview of such flows (with no particular emphasis on combustion, however) and we recall the major types of micro-mixing models developed within the statistical approaches to turbulence (the probability density function approach) as well as in the large-eddy simulation context (the filtered density function). We also report on some trends in algorithm development with respect to the recent progress in computing technology.

【 授权许可】

Unknown