FINITE ELEMENT ANALYSIS OF LAMINAR MIXED CONVECTION IN THE ENTRANCE REGION OF HORIZONTAL ANNULAR DUCTS
作者:
Carlo Nonino,
StefanoDel Giudice,
期刊:
Numerical Heat Transfer, Part A: Applications
(Taylor Available online 1996)
卷期:
Volume 29,
issue 3
页码: 313-330
ISSN:1040-7782
年代: 1996
DOI:10.1080/10407789608913795
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The laminar mixed convection in the entrance region of horizontal straight ducts of an annular cross section is studied by means of a generally applicable finite element procedure based on the parabolized simplification of the Navier-Stokes and energy equations and on the Boussinesq approximation of the buoyancy term. The procedure is validated through comparisons of computed results with available data from the literature. New results concern annuli with radius ratios equal to 0.25, 0.5, and 0.75 subjected to the fundamental boundary condition of the second and the third kinds, for Prandtl numbers equal to 0.7 and 7, and different values of Grashof number.
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