Non-intrusive measurement of the temperature and size distribution of water droplets in a flat fan spray
The measurement of spray characteristics especially the droplets thermal and hydrodynamic properties is very important for many industrial applications.In this paper, a developed global rainbow thermometry method is applied to measure droplets temperature and size distribution in a fiat fan air-blast atomizer spray.The spray droplets is illuminated by a continuum laser with the wavelength of 532nm and power of 14mW, and the rainbow light formed by the droplets is received by a linear CCD.To get accurate result, a calibration method for the relation of scattering angle and CCD pixels is designed, which can effectively reduce the error of the measured temperature.Experiment is taken under different temperature at a fixed gas-liquid ratio conditions, and results shows the method is feasible and has a relatively good precision.
Measurement Temperature Rainbow thermometry Calibration Scattering angle
Qi Pan Zijia Zhang
Nanjing University of information science & technology,Nanjing,210044,China
国际会议
上海
英文
2024-2028
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）