OPTICAL MEASUREMENTS OF LOCAL GAS AND PARTICLE VELOCITY IN AN UPWARD FLOWING DILUTE GAS-SOLIDS SUSPENSION.

M. Maeda, Koichi Hishida, T. Furutani

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Local gas and particle velocities in a dilute gas-solids suspension of fully developed pipe flow are measured with a modified laser Doppler anemometer, whose signal processing consists of an electronic circuit selecting signals of gas and particle velocity by filtering their Doppler frequencies and by comparing the light scattering intensity of an individual particle. The results indicate that an addition of small amounts of particles to air flow causes the profiles of velocity and turbulence intensity to flatten at the central core of pipe, and that the flattening of air velocity profiles is correlated to a nondimensional number derived from momentum balance estimated by a drag force of particles in suspension flow.

Original languageEnglish
Pages (from-to)211-216
Number of pages6
JournalInternational Journal of Electronics
Publication statusPublished - 1980
Externally publishedYes

Fingerprint

Gases
Anemometers
Pipe flow
Air
Light scattering
Drag
Momentum
Signal processing
Turbulence
Pipe
Networks (circuits)
Lasers

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

OPTICAL MEASUREMENTS OF LOCAL GAS AND PARTICLE VELOCITY IN AN UPWARD FLOWING DILUTE GAS-SOLIDS SUSPENSION. / Maeda, M.; Hishida, Koichi; Furutani, T.

In: International Journal of Electronics, 1980, p. 211-216.

Research output: Contribution to journalArticle

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