Numerical analysis of turbulent mixed convection air flow in inclined plane channel with k-ε type turbulence model

Numerical analysis of turbulent mixed convection air flow in inclined plane channel with k-ε type turbulence model 1 corresp first-author Corresponding author. E-mail address: xzr_sjtu@sjtu.edu.cn Corresponding author. E-mail address: xzr_sjtu@sjtu.edu.cn xzr_sjtu@sjtu.edu.cn 1 1 1 School of Nuclear Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China School of Nuclear Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China Numerical study on turbulent mixed convection in inclined plane channels, from 15˚ to 90˚ (vertical), was carried out to examine the effect of inclination on fluid flow and heat transfer distributions. The turbulent air flows upward or downward into the duct with one wall heated from bottom. Calculation results with several kinds of k-ε type turbulence models were used to compare the experimental data with those in literatures to determine suitable model. The dependents of Nusselt number on the inclination angle of both the buoyancy-aided and buoyancy-opposed flow are discussed. Mixed convection k-ε model Turbulence model Inlined channel References Jackson J D , Cotton M A , Axcell B P . Int J Heat Fluid Flow , 1989 , 10 : 2 - 15 . Int J Heat Fluid Flow Behzadmehr A , Galanis N , Laneville A . Int J Heat Mass Transf , 2003 , 46 : 4823 - 4833 . Int J Heat Mass Transf Poškas P . J Eng Phys Thermophys , 1996 , 69 : 738 - 746 . J Eng Phys Thermophys Wang J , Li J , Jackson J D , Int J Heat Fluid Flow , 2004 , 25 : 420 - 430 . Int J Heat Fluid Flow Launder B E , Spalding D B . Comput Methods Appl Mech Engng , 1974 , 3 : 269 - 289 . Comput Methods Appl Mech Engng Jones W P , Launder B E . Int J Heat Mass Transf , 1972 , 15 : 301 - 314 . Int J Heat Mass Transf Lam C K G , Bremhorst K . J Fluids Engng , 1981 , 103 : 456 - 460 . J Fluids Engng Yap C . Faculty of technology, PhD Thesis . University of Manchester , 1987 . Faculty of technology, PhD Thesis Rodi W . AIAA-91-0216 . 29th Aerospaces Sciences Meeting , Reno, Nevada, USA , January 7-10, 1991 . AIAA-91-0216 Cotton M A , Jackson J D , Int J Heat Mass Transf , 1990 , 33 : 275 - 286 . Int J Heat Mass Transf Norris L H , Reynolds W C . Report No. FM-10: turbulent channel flow with a moving wavy boundary . Stanford University, Department Mechanical Engineering , 1975 . Report No. FM-10: turbulent channel flow with a moving wavy boundary 10.1016/S1001-8042(08)60036-6 TK123 2007-12-10 2008-04-20 2021-01-19 2008 Nuclear Science and Techniques 02 19