A Method for the Instantaneous Measurement of Velocity and Temperature in High Speed Air Flow
作者:
D. G. Marlow,
C. R. Nisewanger,
W. M. Cady,
期刊:
Journal of Applied Physics
(AIP Available online 1949)
卷期:
Volume 20,
issue 8
页码: 771-776
ISSN:0021-8979
年代: 1949
DOI:10.1063/1.1698527
出版商: AIP
数据来源: AIP
摘要:
A beam of ultrasonic sound waves is projected across an air stream the velocity and temperature of which are required. From the known ultrasonic frequency and the measured wave‐length, the temperature may be determined; and from the slope of the beam boundary, an approximate Mach number may be obtained. The method is applicable to steady‐flow problems as in wind tunnels or to transient‐flow problems such as the study of shock waves.
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