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논문 기본 정보

자료유형
학술저널
저자정보
Aaqib Majeed (The University of Faisalabad) Ahmad Zeeshan (International Islamic University Islamabad) Aqila Shaheen (Minhaj University) Mohammed Sh. Alhodaly (King Abdulaziz University) Farzan Majeed Noori (University of Oslo)
저널정보
한국자기학회 Journal of Magnetics Journal of Magnetics Vol.27 No.2
발행연도
2022.6
수록면
223 - 231 (9page)
DOI
10.4283/JMAG.2022.27.2.223

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초록· 키워드

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Power generators, Hall accelerators, and flight MHD all require high levels of Hall current. The influence of Hall current and viscous dissipation on time-independent hydro-magnetic mixed convective radiative flow across a porous heated surface has thus been investigated using numerical computing and mathematical modeling in the current study. The fluid is electrically conducted and varies exponentially. It is assumed that the wall temperature and elongation rate will vary with specific exponential shapes. A solid uniform magnetic field B<SUB>0</SUB> is employed normally to the surface. The mathematical model of PDEs for incompressible flow is transformed into ODE by applying a numerical technique based on a finite-difference structure which includes a three-stage Lobatto IIIa scheme with the help of MATLAB. The obtained solution depends on the convergence constraints involving the radiation parameter R, magnetic parameter M, porosity parameter Ω, Hall parameter m, buoyancy parameter ε, temperature distribution parameter a, Eckert number E<SUB>c</SUB>, Prandtl number P<SUB>r</SUB>, and convective term bh. Graphs of the velocity and temperature profiles are explained via pertinent parameters. Skin friction factor, and Nusselt number are also evaluated and presented graphically and in tabular form. Results clarify that temperature profile reduces by increasing values of temperature distribution parameter whereas opposite behavior is noted for positive values of the buoyancy parameter.

목차

1. Introduction
2. Mathematical Formulation
3. Results and Discussion
4. Concluding Remarks
References

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