Visualization of flows behind the lobed forced mixers using the smoke-wire technique

Ching Man Yu, T.H. Yip, L.P. Chua

Research output: Journal article publicationJournal articleAcademic researchpeer-review

1 Citation (Scopus)

Abstract

Flow visualization studies have been conducted using the smoke-wire technique to examine the flows behind lobed forced mixers of different trailing edge configurations (namely a square wave, semi-circular wave and a triangular wave) at a velocity ratio 1: 1 across the lobe. The wake region shed by a lobe is found to be the largest with lobe geometry consisting of straight parallel sidewalls. Streamwise vortices are formed within the first four wavelengths downstream of the trailing edge in the square and semi-circular lobed mixers. These vortices are largely responsible for intense mixing at downstream locations. However, similar observation is not found in the case of triangular lobed mixer. The present visualization tests agree qualitatively with the velocity measurements obtained by authors using a laser-Doppler anemometer. © 1999 The Visualization Society of Japan and Ohmsha, Ltd.
Original languageEnglish
Pages (from-to)397-404
Number of pages8
JournalJournal of Visualization
Volume1
Issue number4
DOIs
Publication statusPublished - 1 Jan 1999
Externally publishedYes

Keywords

  • Lobed mixer smoke-wire technique

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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