0
RESEARCH PAPERS: Natural and Mixed Convection

A Study of Natural Convection in a Rotating Enclosure

[+] Author and Article Information
F. J. Hamady, J. R. Lloyd

Heat Transfer Group, Department of Mechanical Engineering, Michigan State University, E. Lansing, MI 48824

K. T. Yang

Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN 46556

H. Q. Yang

CFD Research Corporation, Huntsville, AL 35805

J. Heat Transfer 116(1), 136-143 (Feb 01, 1994) (8 pages) doi:10.1115/1.2910847 History: Received November 01, 1992; Revised April 01, 1993; Online May 23, 2008

Abstract

The local and mean natural convection heat transfer characteristics and flow fields were studied experimentally and numerically in an air-filled, differentially heated enclosure with a cross-sectional aspect ratio of one. The enclosure is rotated above its longitudinal horizontal axis. A Mach-Zehnder interferometer was employed to reveal the entire temperature field, which enable the measurement of the local and mean Nusselt numbers at the hot and cold surfaces. Laser sheet flow visualization was employed to observe the flow field. The result showed that the Coriolis and centrifugal buoyancy forces arising from rotation have a remarkable influence on the local heat transfer when compared with the nonrotating results. Local heat fluxes were obtained as a function of Taylor (Ta≤4×105 ) and Rayleigh numbers (104 <Ra≤3×105 ), at different angular positions of the enclosure. In addition, a series of interferograms, stream function and isotherm plots demonstrated the strong effect of rotation on the flow field and heat transfer. A correlation of Nusselt number as a function of Taylor and Rayleigh numbers is presented.

Copyright © 1994 by The American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In