3-D NUMERICAL COMPUTATION OF JET ARRAY IMPINGEMENT WITH INITIAL CROSSFLOW  

有初始横流阵列射流冲击的三维数值计算(英文)

作　　者：LIYong-kang ZHANGJing-zhou TANXiao-ming 

机构地区：[1]CollegeofEnergyandPowerEngineering,NUAA29YudaoStreet,Nanjing.210016,P.R.China

出　　处：《Transactions of Nanjing University of Aeronautics and Astronautics》2004年第2期128-133,共6页南京航空航天大学学报（英文版）

摘　　要：The 3-D numerical computation of the flow and temperature fields for jet array impingement with initial crossflow investigates the effects of the jet-to-surface spacing, the impinging hole arrangement and the jet-to-crossflow mass flux ratio on heat transfer characteristics. The study shows that: (1) under the different jet-to-surface spacing, the impingement cooling with inline arrangement is better than that with staggered arrangement for a given jet-to-crossflow mass flux ratio;( 2 ) the value of jet-to-surface spacing impacts a complicated effect on the flow and heat transfer for jet array impingement; (3) as the ratio of crossflow-to-jet mass flux ratio increases, the cooling effectiveness on monotonous decrease for both inline and staggered arrangements at the same jet-to-surface spacing.The 3-D numerical computation of the flow and temperature fields for jet array impingement with initial crossflow investigates the effects of the jet-to-surface spacing, the impinging hole arrangement and the jet-to-crossflow mass flux ratio on heat transfer characteristics. The study shows that: (1) under the different jet-to-surface spacing, the impingement cooling with inline arrangement is better than that with staggered arrangement for a given jet-to-crossflow mass flux ratio; (2) the value of jet-to-surface spacing impacts a complicated effect on the flow and heat transfer for jet array impingement; (3) as the ratio of crossflow-to-jet mass flux ratio increases, the cooling effectiveness on monotonous decrease for both inline and staggered arrangements at the same jet-to-surface spacing.

关 键 词：jet impingement numerical calculation enhanced heat transfer 

分 类 号：TP6[自动化与计算机技术—控制理论与控制工程] TK124[自动化与计算机技术—控制科学与工程]