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Inclined Cavity Effects With Application to Cooling of Biomaterials

[+] Author Affiliations
Saurabh Shrivastava, Bahgat Sammakia

State University of New York at Binghamton

Paper No. IMECE2005-81633, pp. 759-766; 8 pages
doi:10.1115/IMECE2005-81633
From:
  • ASME 2005 International Mechanical Engineering Congress and Exposition
  • Heat Transfer, Part A
  • Orlando, Florida, USA, November 5 – 11, 2005
  • Conference Sponsors: Heat Transfer Division
  • ISBN: 0-7918-4221-5 | eISBN: 0-7918-3769-6
  • Copyright © 2005 by ASME

abstract

The present study involves the numerical investigation of the fluid flow pattern and heat transfer inside bio packages. In the proposed bio package, the biomaterials are encased inside a hollow cavity surrounded by phase change materials. The study represents the numerical analysis of Transient Natural Convection inside an inclined two-dimensional rectangular cavity. The angle of inclination of the thermal enclosure is varied from 0° (heated from below) to 180° (heated from above). The inclination effects of the cavity on the cooling performance of biomaterials are studied. Transient natural convection regimes study, have been performed for Aspect ratio (Ar) 0.5 and at Rayleigh number (Ra) 1.63 e08. Temperature and Stream function contours during the Initial transient stage, Quasi-steady stage and the Late Quasi-steady stage are shown for the flow visualization inside the enclosure. Numerical predictions of the influence of angle of inclination on the Nusselt number and the heat transfer rate during the Quasi-steady stage are obtained. The numerical modeling is performed using commercially available computational fluid dynamics (CFD) code, based on finite volume approach. Variation of Nusselt number along the coupled wall with time is shown to be dependent on the orientation of the enclosure.

Copyright © 2005 by ASME

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