Hydromagnetic flow between two porous disks rotating about non-coincident axes

作     者：M.Guria B.K.Das R.N.Jana C.Erdem Imrak 

作者机构：Department of Applied MathematicsVidyasagar UniversityMidnapore 721 102West BengalIndia Department of Mechanical EngineeringIstanbul Technical UniversityGumussuyuIstanbul 34439Turkey 

出 版 物：《Acta Mechanica Sinica》 (力学学报（英文版）)

年 卷 期：2008年第24卷第5期

页      面：489-496页

核心收录：

学科分类：07[理学] 0802[工学-机械工程] 070201[理学-理论物理] 0701[理学-数学] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：University Grants Commissions for financial provision 

主　　题：Non-coincident Viscous fluid Torque ,Hydromagnetic 

摘      要：Hydromagnetic flow between two porous disks rotating with same angular velocity Ω about two noncoincident axes has been studied in the presence of a uniform transverse magnetic field. An exact solution of the governing equations has been obtained in a closed form. It is found that the primary velocity f/Ωl increases and the secondary velocity g/Ωl decreases with increase in either Reynolds number Re or the Hartman number M. It is also found that the torque at the disk η= 0 increases with increase in either M^2 or K^2. On the other hand there is no torque at the disk η= 1 for large M^2 and K^2. The heat transfer characteristic has also been studied on taking viscous and Joule dissipation into account. It is seen that the temperature increases with increase in either M^2 or K^2. It is found that the rate of heat transfer at the disk η= 0 increases with increase in either M or K. On the other hand the rate of heat transfer at the disk η= 1 increases with increase in K but decreases with increase in M.