Natural convective flow in an inclined lid-driven enclosure with a heated thin plate in the middle
Natural convective flow in an inclined lid-driven enclosure with a heated thin plate in the middle
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倾斜盖驱动外壳中的自然对流，中间有加热薄板
DOI：
10.1016/j.ijheatmasstransfer.2012.08.048
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发表时间：
2012-12
影响因子：
5.2
通讯作者：
Dingfang Li
中科院分区：
文献类型：
--
作者：
Xiaofeng Wang;Dongyang Shi;Dingfang Li
本文用数值方法分析了倾斜方腔中加热薄板的自然对流换热。空腔左右两侧为绝热，两水平壁面温度恒定，低于平板温度。该研究是制定在涡量流函数程序和数值解进行了使用全高阶紧致（FHOC）有限差分格式的9点二维模板。选择空气作为工作流体（Pr=0.71）。根据加热薄板的位置，考虑两种情况（情况I，水平位置;情况II，垂直位置）。影响流场和温度分布的主要控制参数为：Rayleigh数Ra = 103 ~ 105和倾角γ（0° <$γ<360°）。用流线、等温线和努塞尔数（Nu）描述了流体的流动、传热和传热特性。结果表明，流体流场和温度场强烈依赖于瑞利数和倾角。此外，对于垂直放置的薄板，在不同的Rayleigh数下，γ越小，传热越强。
Natural convection heat transfer from a heated thin plate located in the middle of a lid-driven inclined square enclosure has been analyzed numerically. Left and right of the cavity are adiabatic, the two horizontal walls have constant temperature lower than the plate’s temperature. The study is formulated in terms of the vorticity-stream function procedure and numerical solution was performed using a fully higher-order compact (FHOC) finite difference scheme on the 9-point 2D stencil. Air was chosen as a working fluid (Pr=0.71). Two cases are considered depending on the position of heated thin plate (Case I, horizontal position; Case II, vertical position). Governing parameters, which are effective on flow field and temperature distribution, are Rayleigh number values (Ra) ranging from 103to 105and inclination angles γ (0°⩽γ<360°). The fluid flow, heat transfer and heat transport characteristics were illustrated by streamlines, isotherms and Nusselt number (Nu). It is found that fluid flow and temperature fields strongly depend on Rayleigh numbers and inclination angles. Further, for the vertical located position of thin plate heat transfer becomes more enhanced with lower γ at various Rayleigh numbers.
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DOI：
10.4028/www.scientific.net/amr.268-270.263
发表时间：
2011-07
期刊：
Advanced Materials Research
影响因子：
--
作者：
X. Wang;Dingfang Li;Feng Hui
通讯作者：
X. Wang;Dingfang Li;Feng Hui
影响因子：
2.8
作者：
N. Wright;P. Gaskell
通讯作者：
N. Wright;P. Gaskell
影响因子：
1.8
作者：
Z. Tian;Y. Ge
通讯作者：
Z. Tian;Y. Ge
影响因子：
2.1
作者：
G. Ahmed;M. Yovanovich
通讯作者：
G. Ahmed;M. Yovanovich
DOI：
10.1016/s0735-1933(03)00207-0
发表时间：
2004
影响因子：
7
作者：
H. Oztop;I. Dagtekin;A. Bahloul
通讯作者：
H. Oztop;I. Dagtekin;A. Bahloul