Control volume finite element numerical simulation of mixed convection in an air-cooled cavity

Journal Article · Fri Nov 12 04:00:00 EST 1999 · Numerical Heat Transfer. Part A, Applications

OSTI ID:20005544

Omri, A; Nasrallah, S B

The knowledge of flow structure and heat transfer by mixed convection in an open cavity is of interest in relation to a number of physical and technological applications such as ventilation, heat or pollution agent clearance, and electronic cooling. This paper presents a numerical study of transient mixed convection of laminar flows in an air-cooled cavity in which a fluid is injected at a temperature lower than the initial temperature of the cavity. A control volume finite element method (CVFEM) using triangular elements is employed to discretize the governing equations. The performance of the numerical algorithm is first tested. In order to investigate the quality of the ventilation and cooling, the dynamic and thermal fields are numerically determined for a large range of Reynolds and Richardson numbers and for different inlet-outlet locations. Cooling efficiency is examined at transient and at steady regimes.

• Research Organization: Ecole Nationale des Ingenieurs, Monastir (TN)
• OSTI ID: 20005544
• Journal Information: Numerical Heat Transfer. Part A, Applications, Journal Name: Numerical Heat Transfer. Part A, Applications Journal Issue: 6 Vol. 36; ISSN 1040-7782; ISSN NHAAES
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
AIR FLOW
ALGORITHMS
CAVITIES
COOLING
FINITE ELEMENT METHOD
FORCED CONVECTION
LAMINAR FLOW
NATURAL CONVECTION