Analysis of Turbulent Density Fluctuations by the Shadow Method
作者:
Mahinder S. Uberoi,
Leslie S. G. Kovasznay,
期刊:
Journal of Applied Physics
(AIP Available online 1955)
卷期:
Volume 26,
issue 1
页码: 19-24
ISSN:0021-8979
年代: 1955
DOI:10.1063/1.1721855
出版商: AIP
数据来源: AIP
摘要:
Shadow pictures of turbulent flow regions give a particular kind of information about the three‐dimensional density field. If homogeneity and isotropy of the fluctuation field can be assumed, the statistical properties of the picture uniquely determine the correlation function or power spectrum of the three dimensional turbulent density field. Shadow pictures obtained in the wake of a supersonic projectile were analyzed in this manner and encouraging results were obtained. In order to check the validity of the method, the density fluctuations in a heated jet were measured both by the shadow method and by the more conventional hot‐wire technique.
点击下载:
PDF
(605KB)
返 回