Autor: Gorla, Rama Subba Reddy - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Numerical solution of singularly perturbed two parameter problems using exponential splines
Autorzy:: Padmaja, P.
Aparna, P.
Gorla, Rama Subba Reddy
Pothanna, N.
Powiązania:: https://bibliotekanauki.pl/articles/1839837.pdf
Data publikacji:: 2021
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: przepływ ciepła
wartość graniczna
katalizator
singular perturbation
convection-diffusion problems
exponential spline
numerical convergence
Opis:: In this paper, we have studied a method based on exponential splines for numerical solution of singularly perturbed two parameter boundary value problems. The boundary value problem is solved on a Shishkin mesh by using exponential splines. Numerical results are tabulated for different values of the perturbation parameters. From the numerical results, it is found that the method approximates the exact solution very well.
Źródło:: International Journal of Applied Mechanics and Engineering; 2021, 26, 2; 160-172
1734-4492
2353-9003
Pojawia się w:: International Journal of Applied Mechanics and Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: MHD free convection-radiation interaction in a porous medium - part II: soret/dufour effects
Autorzy:: Vasu, B.
Gorla, Rama Subba Reddy
Murthy, P. V. S. N.
Prasad, V. R.
Beg, O. A.
Siddiqa, S.
Powiązania:: https://bibliotekanauki.pl/articles/266156.pdf
Data publikacji:: 2020
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: materiały porowate
pole magnetyczne
magnetohydrodynamika
non-Darcy porous media transport
magnetic field
horizontal circular cylinder
Soret number
Dufour number
Opis:: This paper is focused on the study of two dimensional steady magnetohydrodynamics heat and mass transfer by laminar free convection from a radiative horizontal circular cylinder in a non-Darcy porous medium by taking into account of the Soret/Dufour effects. The boundary layer equations, which are parabolic in nature, are normalized into non-similar form and then solved numerically with the well-tested, efficient, implicit, stable Keller–Box finite-difference scheme. Numerical results are obtained for the velocity, temperature and concentration distributions, as well as the local skin friction, Nusselt number and Sherwood number for several values of the parameters, namely the buoyancy ratio parameter, Prandtl number, Forchheimer number, magnetohydrodynamic body force parameter, Soret and Dufour numbers. The dependency of the thermophysical properties has been discussed on the parameters and shown graphically. Increasing the Forchheimer inertial drag parameter reduces velocity but elevates temperature and concentration. Increasing the Soret number and simultaneously reducing the Dufour number greatly boosts the local heat transfer rate at the cylinder surface. A comparative study of the previously published and present results in a limiting sense is made and an excellent agreement is found between the results.
Źródło:: International Journal of Applied Mechanics and Engineering; 2020, 25, 2; 157-175
1734-4492
2353-9003
Pojawia się w:: International Journal of Applied Mechanics and Engineering
Dostawca treści:: Biblioteka Nauki

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