Hydrodynamic flow between rotating stretchable disks in an orthotropic porous medium

Songklanakarin Journal of Science and Technology (SJST)

卷:42

Bandaru Mallikarjuna¹  K. Gowthami²  P. Hari Prasad²  O. D. Makinde³ 

[1] Department of Mathematics, B. M. S. College of Engineering, Bangalore, Karnataka, 560019 India;

[2] Department of Mathematics, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur, Andhra Pradesh, 522502 India;

[3] Faculty of Military Science, Stellenbosch University, Private Bag X2, Saldanha, 7395 South Africa;

关键词: rotating disks flow;    porous medium;    skin friction;    heat transfer;    shooting numerical method;   

DOI  :  10.14456/sjst-psu.2020.51

来源: DOAJ

【 摘 要 】

A mathematical model of convective steady flow over rotating disks in an orthotropic porous medium has been developedand solved the non-dimentional governing equations for flow by the shooting method that uses fourth order Runge- Kuttaintegration technique and Newton’s method. Magnitude of radial velocity of fluid decreases near the surfaces of the disks forincreasing value of Reynolds number. Impact of stretching parameters on the radial and tangential velocity profiles is observed.Computational results are presented graphically for various cases of parameters on velocity (radialf and tangentialg) andtemperature profiles and table values are reported for skin friction and Nusselt number along both disks. It is observed that as theReynolds number increases, the tangential velocity decreases. As we move far away from the disk the effects of physical parametersis not significant. It is seen that when the stretching parameter increases the radial velocity increases initially and when

【 授权许可】

Unknown