Natural convection in partially cooled tilted cavities

✍ Scribed by M. M. El-Refaee; M. M. Elsayed; N. M. Al-Najem; A. A. Noor

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 853 KB
• Volume: 28
• Category: Article
• ISSN: 0271-2091
• DOI: 10.1002/(sici)1097-0363(19980915)28:3<477::aid-fld725>3.0.co;2-t

✦ Synopsis

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.