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All Journal International Journal of Computing Science and Applied Mathematics Postulat : Jurnal Inovasi Pendidikan Matematika
Mohamad Tafrikan
Universitas Islam Negeri Walisongo
Computer Science & IT Education Mathematics

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Profil Kecepatan dan Temperatur Pada Aliran Konveksi Campuran Yang Melalui Bola Berpori Dengan Pengaruh Hidrodinamika Magnet Mohamad Tafrikan; Mohammad Ghani
Postulat : Jurnal Inovasi Pendidikan Matematika Vol 1 No 2 (2020)
Publisher : Universitas Muhammadiyah Gresik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (439.842 KB) | DOI: 10.30587/postulat.v1i2.2091

Abstract

Pada makalah ini, aliran konveksi bebas dan aliran konveksi paksa berperan penting pada aliran konveksi campuran. Dalam hal ini, pengaruh gaya tekanan (pressure forces) dan gaya apung (buoyant forces) pada aliran konveksi bebas menjadi signifikan. Aliran konveksi campuran dapat digunakan pada teknologi reaksi reaktor dan pendingin elektronik. Dalam makalah ini, persamaan lapisan batas (boundary layer) dari aliran konveksi campuran fluida viskoelastik yang melewati permukaan sebuah bola berpori awalnya ditransformasikan kedalam bentuk non-dimensi, kemudian ditransformasikan kedalam bentuk persamaan lapisan batas non-similar yang diselesaikan secara numerik menggunakan metode beda hingga Keller-Box. Hasil numerik pada makalah ini adalah profil kecepatan (
Numerical results of Crank-Nicolson scheme on unsteady nano fluid under the effect of Prandtl, Mixed Convection, and Magnetohydrodynamics Mohammad Ghani; Yolanda Norasia; Indira Anggriani; Mohamad Tafrikan; Zulaikha Zulaikha
(IJCSAM) International Journal of Computing Science and Applied Mathematics Vol 8, No 2 (2022)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24775401.v8i2.14155

Abstract

In this paper, we are interested in the numerical results on the temperature and velocity profiles over a sphere of unsteady nano fluid by dealing with the effect of Prandtl, mixed convection, and magnetohydrodynamics. We first employ the boundary layer theory to establish the continuity, momentum, and energy equations. We further solve those differential equations numerically by using the finite difference scheme of Crank-Nicolson and Thomas algorithm for the iteration technique. The temperature and velocity profiles are established graphically for the variations of Prandtl, mixed convection, and magnetohydrodynamics. The velocity profile decreases when the variations of Prandtl numbers increase. Moreover, the velocity profiles increase when the variations of mixed convection and magnetohydrodynamics are increased. The temperature profiles are decreased for all variations of Prandtl numbers, mixed convection and magnetohydrodynamics.
Co-Authors Indira Anggriani Mohammad Ghani Mohammad Ghani Yolanda Norasia Zulaikha Zulaikha