A note to the solution of Cheng-Chang equation arising in free convection in porous media

Journal Article · Fri Jan 01 04:00:00 EST 1999 · International Communications in Heat and Mass Transfer

DOI:https://doi.org/10.1016/S0735-1933(98)00130-4· OSTI ID:328391

Na, T Y ^[1]; Pop, I ^[2]

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1. Univ. of Michigan, Dearborn, MI (United States). Dept. of Mechanical Engineering
2. Univ. of Cluj (Romania). Faculty of Mathematics

The phenomenon of convective heat transfer in porous media has been intensively studied over the past years due to many applications of the subject in contemporary technologies, such as storage of radioactive nuclear waste materials, transpiration cooling, separation procession chemical industries, filtration, ground water pollution, storage of grain, fruits and vegetables, to name but a few. Here, the method of extended perturbation series and its improvement are applied to the problem of free convection over a hot horizontal flat surface embedded in a porous medium. The objective is to obtain an expansion of the velocity along the wall and heat flux at the wall in power series of a parameter {beta}. The series are extended with the aid of computer up to the 18-the order. The accuracy of the present solution is discussed.

• OSTI ID: 328391
• Journal Information: International Communications in Heat and Mass Transfer, Journal Name: International Communications in Heat and Mass Transfer Journal Issue: 1 Vol. 26; ISSN 0735-1933; ISSN IHMTDL
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
HEAT FLUX
NATURAL CONVECTION
POROUS MATERIALS
POWER SERIES
SURFACES