激波管内氢-氧混合气体爆轰温度的测量

李招宁; 胡栋; 孙珠妹; 王贵朝

doi:10.11858/gywlxb.1990.04.007

激波管内氢-氧混合气体爆轰温度的测量

doi: 10.11858/gywlxb.1990.04.007

1.
成都科技大学应用物理研究所，四川成都 610065；
2.
西南流体物理研究所，四川成都 610003

详细信息

通讯作者:
李招宁

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出版历程
- 收稿日期: 1990-05-25
- 修回日期: 1990-09-25
- 发布日期: 1990-12-05

Detonation Temperature for Hydrogen-Oxygen Mixtures Using Multi-wavelength Pyrometer

1.
Institute of Applied Physics, Chengdu University of Science and Technology, Chengdu 610065, China;
2.
Southwest Institute of Fluid Physics, Chengdu 610003, China

More Information

Corresponding author: LI Zhao-Ning

摘要

摘要: 以光纤传输光能，用多通道光学高温计，在垂直和平行于爆轰波传播方向上，测量了激波管中氢氧（或含氮）混合气体的爆轰温度。在20~53 kPa压力范围内，进行了六种初始压力氢氧混合气体的爆轰，分别测出横向温度和纵向温度；这两种温度在实验测量的误差范围内是一致的，并与正常爆轰的理论值符合得相当好。
- 爆轰温度 /
- 横向温度 /
- 纵向温度
Abstract: A multi-wavelength method that can be used to measure the detonation temperature for hydrogen-oxygen mixture in shock tube was described in this paper, with the entire field of view of the receiving fibers either filled by the gases or not. To calculate transverse temperature and longitudinal temperature, the continuum radiation at four wavelengths (406.4, 540, 636, 835 nm) was measured by two ways, one was that the receiving fibers were vertical to the direction of detonation wave, and the other was that the receiving fibers were parallel to the direction of detonation wave. If Planck equation is assumed to be suitable for product gases and the emissivity of the gases is assumed to be gray for the above four wavelengths, the transverse and longitudinal temperatures for six hydrogen-oxygen mixtures were calculated in the initial pressure range 0.020~0.053 MPa and the fitting errors were about 10%. The transverse temperature coincides with the longitudinal temperature in the experimental errors and the temperatures also coincide with the theoretical C-J temperature very well.
- detonation temperature /
- transverse temperature /
- longitudinal temperature

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