Flow Structure with Natural Convection in Inclined Air-Filled Enclosures

[+] Author and Article Information
S. J. M. Linthorst, W. M. M. Schinkel, C. J. Hoogendoorn

University of Technology, Delft, Holland

J. Heat Transfer 103(3), 535-539 (Aug 01, 1981) (5 pages) doi:10.1115/1.3244498 History: Received October 17, 1980; Online October 20, 2009


Flow visualization observations are described for natural convection flow in rectangular inclined enclosures. Observations are made in air-filled enclosures of small and moderate aspect ratio (0.25 ≤ A x ≤ 7), angles of inclination from 0 to 90 deg and Rayleigh number between 5 × 103 and 2.5 × 105 . For the range of parameters considered we determined the transition from stationary to nonstationary flow and the transition from two-dimensional to three-dimensional flow. Also, the different stationary flow structures are described. In addition measurements of the velocity profile of the stationary flow have been performed by means of a laser doppler anemometer. Special attention has been given to the side wall boundary condition of the enclosure.

Copyright © 1981 by ASME
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