Time-dependent natural convection of micropolar fluid in a wavy triangular cavity

被引：69
作者：
Sheremet, Mikhail A. [1 ,2 ]
Pop, Loan [3 ]
Ishak, Anuar [4 ]
机构：
[1] Tomsk State Univ, Dept Theoret Mech, Tomsk 634050, Russia
[2] Tomsk Polytech Univ, Inst Power Engn, Tomsk 634050, Russia
[3] Univ Babes Bolyai, Dept Appl Math, Cluj Napoca 400084, Romania
[4] Univ Kebangsaan Malaysia, Sch Math Sci, Fac Sci & Technol, Ctr Modelling & Data Anal, Ukm Bangi 43600, Selangor, Malaysia
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2017年 / 105卷
关键词：
Triangular wavy cavity; Natural convection; Micropolar fluid; Numerical results; BOUNDARY-LAYER-FLOW; HEAT-TRANSFER; POROUS-MEDIUM; MIXED CONVECTION; NANOFLUID TIWARI; ENCLOSURE; SURFACE;
D O I：
10.1016/j.ijheatmasstransfer.2016.09.044
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Natural convection of micropolar fluid in a right-angled wavy triangular cavity has been analyzed numerically. Governing equations formulated in dimensionless stream function, vorticity and temperature using the Boussinesq and Eringen approaches with appropriate initial and boundary conditions have been solved by finite difference method of the second-order accuracy. The effects of the dimensionless time, Prandtl number, vortex viscosity parameter, and undulation number on streamlines, isotherms, vorticity isolines as well as average Nusselt number at wavy wall and fluid flow rate inside the cavity have been studied. Obtained results have revealed essential heat transfer reduction and fluid flow attenuation with vortex viscosity parameter. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：610 / 622
页数：13
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