Numerical study on mixed convection heat transfer in inclined triangular cavities

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题名:	Numerical study on mixed convection heat transfer in inclined triangular cavities
作者:	鍾雲吉;Chen, Chin-Lung;Chung, Yun-Chi
贡献者:	工學院機械工程學系
关键词:	Buoyancy;Computational fluid dynamics;Fluid dynamics;Fluid flow;Friction;Heat transfer;Holes;Inclination angle;Mathematical models;Numerical analysis;Reynolds number
日期:	2015-03-19
上传时间:	2026-04-23 15:20:51 (UTC+8)
出版者:	Taylor and Francis Ltd.;Philadelphia: Taylor & Francis Group
摘要:	摘要： This article presents a parametric study on flow behavior and heat transfer in an inclined triangular cavity subjected to a moving lid and temperature differential. The systematic study considers three physical parameters (inclination angle, Reynolds number, and Grashof number) and explores the influence of these parameters on flow pattern and heat transfer characteristics. A series of computations were performed for the inclination angle (θ) ranging from 0° to 360° (in increments of 45°), Reynolds number (Re) from 100 to 1,500, and Grashof number (Gr) from 10 5 to 10 7 . The numerical results show that there are three kinds of flow regime in a triangular cavity inclined from 0° to 360°: buoyancy-dominant, inertia-dominant, and intermediate transition (mixed convection flow). It is interesting that the case with Re = 100, Gr = 10 7 , and θ = 0° exhibits five circulation cells and induces excellent thermal performance, corresponding to wavy profiles in local Nusselt number and local friction factor. The study also reveals that the good thermal performance within a local region can generate higher friction force on the neighboring boundary and this friction force may reduce the strength of the vortex. 出版者： Philadelphia: Taylor & Francis Group 出版日期： 2015-03-19 出處： Numerical heat transfer. Part A, Applications, 2015-03, Vol.67 (6), p.651-672 資源來源： EBSCOhost Academic Search Premier 版權： Copyright Taylor & Francis Group, LLC 2015 版權： Copyright Taylor & Francis Ltd. 2015 識別號： ISSN: 1040-7782 識別號： EISSN: 1521-0634 識別號： DOI: 10.1080/10407782.2014.949135
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