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ISSN オンライン: 2642-0554

TWO-PHASE MODELS ASSESSMENT VIA DNS

Farzad Mashayek
Department of Mechanical and Industrial Engineering, University of Illinois at Chicago, 842 West Taylor Street, Chicago, Illinois 60607, USA

R. V. R. Pandya
Department of Mechanical Engineering University of Illinois at Chicago 842 W. Taylor Street, Chicago, IL 60607

G. B. Jacobs
Department of Mechanical Engineering University of Illinois at Chicago 842 W. Taylor Street, Chicago, IL 60607

S. Liao
School of Naval Architecture & Ocean Engineering Shanghai Jiao Tong University Shanghai, 200030, P. R. China

要約

In this paper, to assess the existing statistical models, we use our direct numerical simulation (DNS) data for the two-phase situations of homogeneous shear and plane strain incompressible turbulent flows laden with spherical particles. Two statistical models derived in the framework of kinetic or probability density function (pdf) approach by Reeks (1991, 1992, 1993) and Zaichik (1999) are considered for the purpose of assessment. The closed set of equations for statistical average quantities of interest for particles are presented for these models in case of homogeneous plane strain flow. Their predictions along with the models predictions in case of homogeneous shear flows are compared with the DNS data.