摘要
采用自行研制的中心嵌有铜柱感应件的小尺寸杆状热流探针,在低扰动条件下,对射入大气环境的纯氩层流等离子体射流传向铜探头表面的热流密度进行了动态测量。结果表明,在射流最高温度16500 K、最大轴向速度850 m/s、探针垂直于射流流动方向的移动速度130～260 mm/s的实验参数范围内,随着探针移动速度的提高,测得的热流密度值减小;射流温度和速度越高,探针移动速度对热流密度测量值的影响越大。
The transient method was used to measure the heat flux from the plasma jet to the selfmade stick-type heat flux probe with copper-slug sensor fixed in it. Within experimental parameter ranges of maximum jet temperature 16500 K, maximum axial velocity 850 m/s and probe sweeping velocity 130-260 mm/s, results show that the measured heat flux decreases with the increasing probe sweeping velocity, and effects of the probe sweeping velocity on the measured heat flux increased with increasing jet temperature and axial velocity.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2007年第5期862-864,共3页
Journal of Engineering Thermophysics
基金
国家自然科学基金(No.500336010
No.10575127)
关键词
层流等离子体射流
杆状热流探针
热流密度
动态测量
移动速度
laminar plasma jet
stick-type heat flux probe
heat flux
transient measurement
sweeping velocity
