3-D NUMERICAL COMPUTATION OF JET ARRAY IMPINGEMENT WITH INITIAL CROSSFLOW |
| |
作者姓名: | LIYong-kang ZHANGJing-zhou TANXiao-ming |
| |
作者单位: | CollegeofEnergyandPowerEngineering,NUAA29YudaoStreet,Nanjing.210016,P.R.China |
| |
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.
|
关 键 词: | 横流阵列 射流冲击 三维数值 计算 强化传热 |
本文献已被 维普 等数据库收录! |
|