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首页> 外文期刊>Acta Ciencia Indica. Mathematics >UNSTEADY EFFECT ON LAMINAR FREE CONVECTIVE FLOW ALONG A POROUS HOT VERTICAL PLATE THROUGH POROUS MEDIUM IN THE PRESENCE OF HEAT SOURCE WITH MASS TRANSFER IN ROTATING SYSTEM
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UNSTEADY EFFECT ON LAMINAR FREE CONVECTIVE FLOW ALONG A POROUS HOT VERTICAL PLATE THROUGH POROUS MEDIUM IN THE PRESENCE OF HEAT SOURCE WITH MASS TRANSFER IN ROTATING SYSTEM

机译：旋转系统中有热源传热的多孔介质在多孔热垂直平板上沿层流自由流动的非定常效应

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摘要

The purpose of the present problem is to study the effect of unsteady on laminar free convective flow of an electrically conducting fluid along a porous hot vertical plate through porous medium in the presence of heat source with mass transfer in rotating system. The governing equations of motions are solved by a regular perturbation technique. The expressions of temperature and concentration are derived. The components of skin friction in x and y directions are discussed with the tables and graphs. The primary and secondary velocity profiles are discussed graphicaly taking into cases viz., Case - Ⅰ: When G_r > 0 (i.e.,flow on a heated plate), the primary velocity decreases with the increase in t and E, but increases with the increase in K and secondary velocity increases with the increase in t, but decreases with the increase in E and K. Case - Ⅱ: When G_r < 0 (i.e., flow on a cooled plate), the primary velocity increases with the increase in t and E, but it decreases with the increase in K and secondary velocity decreases with the increase in t, but increases with the increase in E and K.
机译：本问题的目的是研究在热源存在且在旋转系统中存在传质的情况下，非稳态对导电流体沿多孔热垂直板通过多孔介质的层流自由对流的影响。运动的控制方程通过常规的摄动技术求解。导出温度和浓度的表达式。表格和图表讨论了x和y方向上皮肤摩擦的分量。讨论了初级和次级速度分布图，并考虑了情况-情况Ⅰ：当G_r> 0（即加热板上的流量）时，初级速度随t和E的增加而减小，但随t和E的增加而增加情况Ⅱ：当G_r <0（即在冷却板上流动）时，初级速度随t和t的增加而增加。 E，但随着K的增加而降低，并且次级速度随t的增加而降低，但随着E和K的增加而增加。

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