Flow pattern of double-cavity flow at high Reynolds number

被引：10

作者：

Goltsman, Anna ^{[1
]}

Saushin, Ilya ^{[1
]}

机构：

[1] Russian Acad Sci, FRC Kazan Sci Ctr, Inst Power Engn & Adv Technol, 2-31 Lobachevskogo St,POB 261, Kazan 420111, Tatarstan, Russia

来源：

PHYSICS OF FLUIDS | 2019年 / 31卷 / 06期

基金：

俄罗斯科学基金会;

关键词：

DIRECT NUMERICAL-SIMULATION; SYMMETRIC CHANNEL; TURBULENT; WALL; INSTABILITIES;

D O I：

10.1063/1.5099702

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The flow structure in a turbulent double-cavity flow has been studied experimentally and numerically. The dynamics of the two-component instantaneous velocity vector fields measured by an optical smoke image velocimetry method and calculated using the ANSYS Fluent 19.2 software has been derived. For a wide range of dynamic similarity numbers of shape factor and Re-L, the flow resistance coefficients for the cavity and relative flow mass transfer with the cavities have been estimated; three characteristic flow regimes of double-cavity flow have been distinguished and described; the flow pattern map via the Re-L number and shape factor has been obtained.

引用

页数：10

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