NONISOTHERMAL FLOW AROUND A CIRCULAR CYLINDER WITH A PERMEABLE LAYER AT MODERATE REYNOLDS NUMBERS

被引:0
|
作者
Morenko, I. V. [1 ]
Snigerev, B. A. [1 ]
机构
[1] Russian Acad Sci, Kazan Res Ctr, Inst Mech & Machine Mfg, 2-31 Lobachevskii Str, Kazan 420111, Republic Of Tat, Russia
关键词
permeable porous layer; circular cylinder; heat exchange; nonisothermal flow;
D O I
10.1007/s10891-016-1451-3
中图分类号
O414.1 [热力学];
学科分类号
摘要
Results of a numerical investigation of a separation nonisothermal flow of an incompressible viscous fluid around a circular cylinder covered with a permeable porous layer at moderate Reynolds numbers are presented. This flow was defined with the use of Navier-Stokes and energy equations, and the filtration flow in the porous layer was determined by the Forchheimer law. The dependence of the hydrodynamical drag of the indicated cylinder and the length of the vortex region in the flow around it on the Reynolds and Darcy numbers was determined. An analysis of the heat transfer from cylindrical bodies covered with permeable layers of a highly heat-conducting material or a heat-insulating material has been performed.
引用
收藏
页码:896 / 901
页数:6
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