Fully Developed Laminar Free Convection With Variable Thermophysical Properties Between Two Open-Ended Vertical Parallel Plates Heated Asymmetrically With Large Temperature Differences

[+] Author and Article Information
Asterios Pantokratoras

School of Engineering, Democritus University of Thrace, 67100 Xanthi, Greeceapantokr@civil.duth.gr

J. Heat Transfer 128(4), 405-408 (Oct 26, 2005) (4 pages) doi:10.1115/1.2175154 History: Received July 19, 2005; Revised October 26, 2005

The steady laminar fully developed flow between two isothermal parallel plates is studied in this paper. The investigation concerns air, engine oil, and water taking into account the variation of all physical properties (μ, k, and ρ) with temperature. The results are obtained with the direct numerical solution of the governing equations and cover large temperature differences not treated until now. The largest differences of volume flow rate and vertical heat flux from the corresponding constant properties values reach 1568% and 2120% in air, 139% and 247% in oil, and 62% and 55% in water.

Copyright © 2006 by American Society of Mechanical Engineers
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