Particle Motion in a Two-dimensional Turbulent Mixing Layer

Akito Ando; Hiroaki Sadata; Koichi Hishida; Masanobu Maeda

doi:10.1299/kikaib.56.2189

Particle Motion in a Two-dimensional Turbulent Mixing Layer

Akito Ando, Hiroaki Sadata, Koichi Hishida, Masanobu Maeda

Department of System Design Engineering

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

The motion of small particles in turbulent mixing layer was experimentally studied in order to clarify the dominant factors on particle motion in turbulent gas flow. Spherical glass particles were loaded into the initial point of a two-dimensional air mixing layer. The laser-Doppler anemometry with particle size discrimination enabled to perform measurements of both particles and gas-phase velocities and also particle number density. The results show that the particle dispersion depends strongly on the stokes number, that is, the ratio of the particle relaxation time to the characteristic time scale of the large scale eddies in the mixing layer and overshoot phenomena were observed in the range of the stokes number of about 1.

Original language	English
Pages (from-to)	2189-2197
Number of pages	9
Journal	Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume	56
Issue number	528
DOIs	https://doi.org/10.1299/kikaib.56.2189
Publication status	Published - 1990 Jan 1

Keywords

LDV
Multiphase Flow
Particle Dispersion
Shear Flow
Turbulent Mixing

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering

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title = "Particle Motion in a Two-dimensional Turbulent Mixing Layer",

abstract = "The motion of small particles in turbulent mixing layer was experimentally studied in order to clarify the dominant factors on particle motion in turbulent gas flow. Spherical glass particles were loaded into the initial point of a two-dimensional air mixing layer. The laser-Doppler anemometry with particle size discrimination enabled to perform measurements of both particles and gas-phase velocities and also particle number density. The results show that the particle dispersion depends strongly on the stokes number, that is, the ratio of the particle relaxation time to the characteristic time scale of the large scale eddies in the mixing layer and overshoot phenomena were observed in the range of the stokes number of about 1.",

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AU - Sadata, Hiroaki

AU - Hishida, Koichi

AU - Maeda, Masanobu

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AB - The motion of small particles in turbulent mixing layer was experimentally studied in order to clarify the dominant factors on particle motion in turbulent gas flow. Spherical glass particles were loaded into the initial point of a two-dimensional air mixing layer. The laser-Doppler anemometry with particle size discrimination enabled to perform measurements of both particles and gas-phase velocities and also particle number density. The results show that the particle dispersion depends strongly on the stokes number, that is, the ratio of the particle relaxation time to the characteristic time scale of the large scale eddies in the mixing layer and overshoot phenomena were observed in the range of the stokes number of about 1.

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