倾斜中心红导体对加热波形腔内 MHD 自然对流和强制对流的影响

S. O. Juma, J. K. Sigey, J. Abonyo, S. K. Maritim
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引用次数: 0

摘要

研究了倾斜导体上的霍尔和离子滑移对施加恒定横向磁场的加热波浪形腔体内的 MHD 自然对流和强制对流的影响。采用有限中心方案近似法求解了支配动量和能量方程,并用 MATLAB 软件求解了所得到的偏微分方程。 研究表明,吸热系数增加会降低表面传热,从而降低流速。瑞利数的增加会提高流速,而导体倾角的增加会增加浮力分量,从而提高流速。结果进一步表明,倾斜角为 90º 时流速更高。此外,结果还显示,哈特曼数增加也会增加流速。由于工程需要,哈特曼数、瑞利数和吸收系数与流速和温度曲线有关,通过表格和图形剖面进行了分析讨论和表示。本研究可直接应用于海洋和航天器部门的多流体力学推进船舶的开发。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effects of an Inclined Cente red Conductor on MHD Natural and Forced Convection Within a Heated Wavy Chamber
The study of the effect of hall and ion slip on an inclined conductor on MHD natural and forced convection in a heated wavy chamber with a constant transversal magnetic field applied. The governing momentum and energy equation were solved by applying finite central scheme approximation and the resulting partial difference equations were solved by MATLAB software.  The study showed that an increase heat absorption coefficient lowers the surface heat transfer thus lowering flow rate. An increase in Rayleigh number increases the flow rate while an increase in the angle of inclination of the conductor increases the buoyancy force component thereby increasing the flow rate. The results further showed that flow rate became higher at an inclination angle of 90º. In addition, the results also showed that an increase in Hartmann increases the flow rate. The Hartmann number, Rayleigh number and Absorption coefficient are analytically discussed and represented in tables and graphical profiles with respect to flow velocity and temperature profile due to engineering demand. This current study a direct application in the development of MHD propelled vessels in the marine and space-craft department.
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