Sains Malaysiana 49(5)(2020): 1201-1208

http://dx.doi.org/10.17576/jsm-2020-4905-25

G-Jitter Fully Developed Heat and Mass Transfer by Mixed Convection Flow between Two Parallel Plates with Constant Heat Flux

(Ketar-G Pemindahan Haba Terbentuk Penuh oleh Aliran Olakan Campuran antara Dua Plat Selari dengan Fluks Haba Tetap)

WAN NOR ZALEHA AMIN¹, AHMAD QUSHAIRI MOHAMMAD¹, SHARIDAN SHAFIE¹* & MUHAMMAD QASIM²

¹Department of Mathematical Sciences, Faculty of Science, Universiti Teknologi Malaysia

81310 UTM Johor Bahru, Johor Darul Takzim, Malaysia

²COMSATS University Islamabad, Park Road, Tarlai Kalan, 455000 Islamabad, Pakistan

Diserahkan: 27 Februari 2019/Diterima: 16 Januari 2020

ABSTRACT

In this research, the problem of heat and mass transfer in mixed convection flow induced by g-jitter is studied analytically. The flow passes through an infinite length of vertical parallel plates. The left wall of the plate is prescribed with constant heat flux while the right wall is maintained at a constant temperature. The governing boundary layer equations are transformed into dimensionless equations by using the appropriate dimensionless variables. The behaviors of the velocity, temperature, and concentration profiles of the fluid are analyzed by Fourier method and illustrated graphically as well. Results show that due to an increase in value of wall temperature, the fluid temperature increases. It is found that the controlling parameters strongly affect the heat and mass transfer characteristics in g-jitter fluid flow.

Keywords: Constant heat flux; g-jitter; mixed convection; two vertical plates

ABSTRAK

Dalam kajian ini, masalah bagi aliran pemindahan haba dan jisim di dalam aliran olakan campuran yang disebabkan oleh ketar-g dikaji secara analitik. Aliran ini melepasi satu plat selari menegak yang panjangnya tidak terhingga. Dinding sebelah kiri plat ditetapkan dengan fluks haba tetap manakala dinding sebelah kanan pula dikekalkan pada suhu tetap. Persamaan menakluk bagi lapisan sempadan diubah ke dalam persamaan tak bermatra dengan menggunakan pemboleh ubah tak bermatra yang bersesuaian. Telatah bagi profil halaju, suhu dan kepekatan bendalir dianalisis dengan kaedah Fourier dan juga diilustrasi secara bergraf. Keputusan menunjukkan bahawa dengan peningkatan nilai suhu dinding, suhu cecair juga meningkat. Didapati bahawa parameter pengawal sangat mempengaruhi ciri pemindahan haba dan jisim dalam aliran bendalir ketar-g.

Kata kunci: Dua plat menegak; fluks haba tetap; ketar-g; olakan campuran

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*Pengarang untuk surat-menyurat; email: sharidan@utm.my