Accession Number : ADP008977

Title :   Can We Get Correct Velocity Information from Concentration-Weighted Average of LDV Data in a Mixing Region?,

Corporate Author : KOBE UNIV (JAPAN)

Personal Author(s) : Nakajima, Tsuyoshi ; Hisa, Yasuo ; Ikeda, Yuji

Report Date : 23 JUL 1992

Pagination or Media Count : 6

Abstract : This paper deals with effects of rotating motion of the large scale vortices on motion of scattering particles in a two-dimensional shear layer. The motion and dispersion of particles were analyzed numerically. The results show that there is some difference in mean velocity between the particle and the fluid and a concentration-weighted average is not always applicable for the flow field where the velocity component changes largely relative to its absolute value.

Descriptors :   *JET MIXING FLOW, *LASER VELOCIMETERS, TWO DIMENSIONAL FLOW, DOPPLER EFFECT, SHEAR PROPERTIES, WEIGHTING FUNCTIONS, FLOW FIELDS, JAPAN.

Subject Categories : Fluid Mechanics
      Optical Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE