Finite element solutions of laminar and turbulent flow with forced and mixed convection in an air-cooled room

Journal Article · Tue Apr 01 04:00:00 EST 1997 · Numerical Heat Transfer. Part A, Applications

DOI:https://doi.org/10.1080/10407789708914051· OSTI ID:509308

Lee, S C ^[1]; Cheng, C Y ^[2]; Chen, C K ^[3]

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1. National Kaohsiung Inst. of Tech. (Taiwan, Province of China). Dept. of Mechanical Engineering
2. Nan-Tai Inst. of Tech., Yunkan (Taiwan, Province of China). Dept. of Mechanical Engineering
3. National Cheng-Kung Univ., Tainan (Taiwan, Province of China). Dept. of Mechanical Engineering

This article applies the finite element method to study characteristics of forced and mixed convection in an air-cooled room. Numerical solutions are obtained in both the laminar and turbulent regimes. The computed thermal and flow fields and the distributions of kinetic and thermal eddy energy as well as their dissipations are presented. The results show that air cooling is not effective in the laminar mixed convection while in the turbulent flow the effect of air cooling is evident. Further, it is better to calculate the turbulent Prandtl number in mixed convection flow by the thermal turbulence two-equation model.

• Sponsoring Organization: USDOE
• OSTI ID: 509308
• Journal Information: Numerical Heat Transfer. Part A, Applications, Journal Name: Numerical Heat Transfer. Part A, Applications Journal Issue: 5 Vol. 31; ISSN 1040-7782; ISSN NHAAES
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
AIR CONDITIONING
BUILDINGS
CONVECTION
FINITE ELEMENT METHOD
LAMINAR FLOW
SPACE HVAC SYSTEMS
TURBULENT FLOW