Analysis of Turbulent Density Fluctuations by the Shadow Method
- 1 January 1955
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 26 (1) , 19-24
- https://doi.org/10.1063/1.1721855
Abstract
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.This publication has 6 references indexed in Scilit:
- Turbulence in Supersonic FlowJournal of the Aeronautical Sciences, 1953
- On mapping and measurement of random fieldsQuarterly of Applied Mathematics, 1953
- The Decay of Isotropic Temperature Fluctuations in an Isotropic TurbulenceJournal of the Aeronautical Sciences, 1951
- The Hot-Wire Anemometer in Supersonic FlowJournal of the Aeronautical Sciences, 1950
- High Power Short Duration Spark DischargeReview of Scientific Instruments, 1949
- Extended Applications of the Hot-Wire AnemometerReview of Scientific Instruments, 1947