EXPERIMENTAL-STUDY ON MASS HEAT-TRANSFER OF CIRCULAR JET IMPINGEMENT IN CUBICAL CAVITIES

作     者：LI, PW TAO, WQ 

作者机构：School of Energy and Power Engineering Xi'an Jiaotong University Xi'an Shaanxi 710049 PRC State Key Laboratory of Pollution Control and Resources Reuse College of Environmental Science & Engineering Tongji University Shanghai 200092 China Key Laboratory of Thermo-Fluid Science and Engineering of MOE School of Energy and PowerEngineering Xian Jiaotong University Xian 710049 China 

出 版 物：《JOURNAL OF ENHANCED HEAT TRANSFER》 (强化传热杂志)

年 卷 期：1995年第2卷第4期

页      面：251-261页

核心收录：

学科分类：080702[工学-热能工程] 08[工学] 0807[工学-动力工程及工程热物理] 0802[工学-机械工程] 

主　　题：IMPINGEMENT CIRCULAR JET CUBICAL CAVITY EXPERIMENTAL STUDY NAPHTHALENE SUBLIMATION LOCAL MEASUREMENT 

摘      要：Heat/mass transfer characteristics of a circular jet impingement in cubical cavity with flat or curved bottom surface are investigated experimentally using naphthalene sublimation technique. The effects of the distance between jet exit and bottom surface (H) and jet Reynolds number are parametrically studied. The jet Reynolds number varied from 7 x 10(3) to 1.1 x 10(5), and the ratio of HID (D-jet delivery nozzle diameter) varied from 0.5 to 4.0. The surface averaged Sherwood numbers for the bottom and lateral walls are correlated with jet exit Reynolds number by a power law equation. In the parameter range tested, the averaged Sherwood number of the bottom surface is always lower than that of the lateral walls.