期刊刊名：南台學報 　 卷期：40卷1期

篇名出版日期：2015年3月1日

作者：鄭慶陽,Ching-Yang Cheng

語言：English

關鍵字：Heat and Mass Transfer, Mixed Convection, Vertical Wedge, Porous Medium, Magnetic Field, Integral Method,熱與質量傳遞,混合對流,垂直楔形體,多孔介質,磁場,積分法

被點閱次數：3次

閱讀時間：64sec

摘要：
This study uses the integral method to study the heat and mass transfer by combined natural and forced convection from a vertical wedge with constant wall temperature and concentration in porous media saturated with an electrically conducting fluid in the presence of a transverse magnetic field. The simple approximate solutions obtained by the integral method are found to be in reasonable agreement with the nonsimilar solutions. This study presents simple analytic expressions so that any practicing engineer can easily and rapidly calculate the local and average values of important heat and mass transfer characteristics. An increase in the wedge angle parameter tends to increase the local Nusselt number and the local Sherwood number while an increase in the magnetic parameter decreases the local Nusselt number and the local Sherwood number. The ratio of the thermal boundary layer thickness to the concentration boundary layer thickness decreases with the magnetic parameter and the wedge angle parameter.

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