A general formulation for the decay of swirling motion along a straight pipe

Ching Man Yu, O. Kitoh

Research output: Journal article publicationJournal articleAcademic researchpeer-review

20 Citations (Scopus)

Abstract

This paper describes an analytical approach, based on the conservation of angular momentum flux, to predict the decay of swirling motion due to frictional effects along a straight duct. A combined forced vortex and shear-type velocity profiles were used and the analysis could be applicable to any types of swirling flow. Good agreement with measurements in a straight pipe with different level of inlet swirl intensities (Kitoh O.; J. Fluid Mechanics, 1991) can be obtained with the approximate solution. The present formulation can also demonstrate that the swirling motion along a straight pipe does not always decay exponentially but depending on inlet conditions and the variation of friction coefficient with downstream distance. © 1994.
Original languageEnglish
Pages (from-to)719-728
Number of pages10
JournalInternational Communications in Heat and Mass Transfer
Volume21
Issue number5
DOIs
Publication statusPublished - 1 Jan 1994
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Chemical Engineering(all)
  • Condensed Matter Physics

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