Ahmad Sohail, Vieru Dumitru, Khan Ilyas, Shafie Sharidan
Department of Mathematics, City University of Science and Information Technology, Peshawar, Pakistan.
COMSATS Institute of Information Technology, Attock, Pakistan.
PLoS One. 2014 May 1;9(5):e88766. doi: 10.1371/journal.pone.0088766. eCollection 2014.
Magnetic field influence on unsteady free convection flow of a second grade fluid near an infinite vertical flat plate with ramped wall temperature embedded in a porous medium is studied. It has been observed that magnitude of velocity as well as skin friction in case of ramped temperature is quite less than the isothermal temperature. Some special cases namely: (i) second grade fluid in the absence of magnetic field and porous medium and (ii) Newtonian fluid in the presence of magnetic field and porous medium, performing the same motion are obtained. Finally, the influence of various parameters is graphically shown.
研究了磁场对嵌入多孔介质中的无限垂直平板附近具有斜坡壁温的二级流体非定常自由对流流动的影响。据观察,在斜坡温度情况下的速度大小以及表面摩擦力远小于等温温度情况。得到了一些特殊情况,即:(i)无磁场和多孔介质时的二级流体,以及(ii)有磁场和多孔介质时进行相同运动的牛顿流体。最后,以图形方式展示了各种参数的影响。