A. V. Kosarev, V. L. Podkovyrov, A. D. Yaroshevskaya, A. V. Meleshko, K. M. Gutorov
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引用次数: 0
摘要
研究人员开发了一种用于研究短周期（最多 1 毫秒）内脉冲气体流的实验装置，并介绍了一种实验数据处理方法。根据高速帧干涉测量数据和动态压力测量结果，确定了氦气流密度和速度的空间和时间分布。介绍了在考虑实验误差的情况下重建空间密度分布的最佳方法。所提出的方法可以确定密度大于 0.0001 kg/m3 和速度大于 400 m/s 的气体流的特征。
A Method for Determining the Density and Velocity of Pulse Gas Flows of Millisecond Duration
An experimental setup for studying pulse gas flows within short periods (up to 1 ms) was developed and an experimental data processing method is presented. Based on high-speed frame interferometry data and the results of dynamic pressure measurements, the spatial and temporal distributions of the helium flow density and velocity are determined. The optimal method for reconstructing the spatial density distributions with consideration for the experimental errors is described. The presented method allows characterization of the gas flows with a density of more than 0.0001 kg/m3 and a velocity of more than 400 m/s.
期刊介绍：
Instruments and Experimental Techniques is an international peer reviewed journal that publishes reviews describing advanced methods for physical measurements and techniques and original articles that present techniques for physical measurements, principles of operation, design, methods of application, and analysis of the operation of physical instruments used in all fields of experimental physics and when conducting measurements using physical methods and instruments in astronomy, natural sciences, chemistry, biology, medicine, and ecology.
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