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Volume 15, Issue 1
Semi analytical solution of MHD asymmetric flow between two porous disks

Vishwanath B. Awati and Manjunath Jyoti

J. Info. Comput. Sci. , 15 (2020), pp. 003-015.

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  • Abstract
In this paper, we study MHD asymmetric steady incompressible viscous flow of an electrically conducting fluid between two large stationary coaxial porous disks of different permeability in the presence of uniform transverse magnetic field. The governing nonlinear momentum equations in cylindrical co- ordinates together with relevant boundary conditions are reduced to nonlinear ordinary differential equation (NODE) using similarity transformations. The resulting NODE is solved by Computer Extended Series Solution (CESS) and Homotopy Analysis Method (HAM). The analytical solutions are explicitly expressed by recurrence relation for determining the universal coefficients. The nearest singularity is obtained at R=4.2981 with help of Domb-Sykes plot which restricts the convergence of the series, using Euler transformation the singularity is mapped to infinity. The obtained solutions are valid for all values of the Reynolds number, magnetic parameter and permeability parameter are presented through graphs and tabular forms to discuss the important features of the flow. The resulting solutions are compared with the earlier literatures which are found to be in good agreement. Further, the region of validity of the series is extended for much larger values of R up to infinity by Pade’ approximants.
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@Article{JICS-15-003, author = {Vishwanath B. Awati and Manjunath Jyoti}, title = {Semi analytical solution of MHD asymmetric flow between two porous disks}, journal = {Journal of Information and Computing Science}, year = {2024}, volume = {15}, number = {1}, pages = {003--015}, abstract = { In this paper, we study MHD asymmetric steady incompressible viscous flow of an electrically conducting fluid between two large stationary coaxial porous disks of different permeability in the presence of uniform transverse magnetic field. The governing nonlinear momentum equations in cylindrical co- ordinates together with relevant boundary conditions are reduced to nonlinear ordinary differential equation (NODE) using similarity transformations. The resulting NODE is solved by Computer Extended Series Solution (CESS) and Homotopy Analysis Method (HAM). The analytical solutions are explicitly expressed by recurrence relation for determining the universal coefficients. The nearest singularity is obtained at R=4.2981 with help of Domb-Sykes plot which restricts the convergence of the series, using Euler transformation the singularity is mapped to infinity. The obtained solutions are valid for all values of the Reynolds number, magnetic parameter and permeability parameter are presented through graphs and tabular forms to discuss the important features of the flow. The resulting solutions are compared with the earlier literatures which are found to be in good agreement. Further, the region of validity of the series is extended for much larger values of R up to infinity by Pade’ approximants. }, issn = {1746-7659}, doi = {https://doi.org/}, url = {http://global-sci.org/intro/article_detail/jics/22392.html} }
TY - JOUR T1 - Semi analytical solution of MHD asymmetric flow between two porous disks AU - Vishwanath B. Awati and Manjunath Jyoti JO - Journal of Information and Computing Science VL - 1 SP - 003 EP - 015 PY - 2024 DA - 2024/01 SN - 15 DO - http://doi.org/ UR - https://global-sci.org/intro/article_detail/jics/22392.html KW - MHD KW - asymmetric flow KW - CESS KW - Domb-Sykes plot KW - Euler transformation KW - HAM and Pade' approximants.1 AB - In this paper, we study MHD asymmetric steady incompressible viscous flow of an electrically conducting fluid between two large stationary coaxial porous disks of different permeability in the presence of uniform transverse magnetic field. The governing nonlinear momentum equations in cylindrical co- ordinates together with relevant boundary conditions are reduced to nonlinear ordinary differential equation (NODE) using similarity transformations. The resulting NODE is solved by Computer Extended Series Solution (CESS) and Homotopy Analysis Method (HAM). The analytical solutions are explicitly expressed by recurrence relation for determining the universal coefficients. The nearest singularity is obtained at R=4.2981 with help of Domb-Sykes plot which restricts the convergence of the series, using Euler transformation the singularity is mapped to infinity. The obtained solutions are valid for all values of the Reynolds number, magnetic parameter and permeability parameter are presented through graphs and tabular forms to discuss the important features of the flow. The resulting solutions are compared with the earlier literatures which are found to be in good agreement. Further, the region of validity of the series is extended for much larger values of R up to infinity by Pade’ approximants.
Vishwanath B. Awati and Manjunath Jyoti. (2024). Semi analytical solution of MHD asymmetric flow between two porous disks. Journal of Information and Computing Science. 15 (1). 003-015. doi:
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