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Natural convection in partially cooled tilted cavities
Author(s) -
ElRefaee M. M.,
Elsayed M. M.,
AlNajem N. M.,
Noor A. A.
Publication year - 1998
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/(sici)1097-0363(19980915)28:3<477::aid-fld725>3.0.co;2-t
Subject(s) - nusselt number , grashof number , natural convection , mechanics , laminar flow , adiabatic process , heat transfer , thermodynamics , streamlines, streaklines, and pathlines , stream function , materials science , physics , reynolds number , vortex , vorticity , turbulence
Two‐dimensional numerical simulations of laminar natural convection in a partially cooled, differentially heated inclined cavities are performed. One of the cavity walls is entirely heated to a uniformly high temperature (heat source) while the opposite wall is partially cooled to a lower temperature (heat sink). The remaining walls are adiabatic. The tilt angle of the cavity is varied from 0° (heated from left) to −90° (heated from top). The fast false implicit transient scheme (FITS) algorithm, developed earlier by the same authors, is modified to solve the derived variables vorticity‐streamfunction formulation. The effects of aspect ratio (AR), sink–source ratio and tilt angle on the average Nusselt number are examined through a parametric study; solutions are obtained for two Grashof numbers, 10 5 and 10 7 . Flow patterns and isotherms are used to investigate the heat transfer and fluid flow mechanisms inside the cavity. © 1998 John Wiley & Sons, Ltd.