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Title: Influence of outlet geometry on strongly swirling turbulent flow through a circular tube

Abstract

The results are reported for an extensive series of measurements (using laser Doppler anemometry) of the mean and fluctuating flow fields for swirling turbulent flow downstream of an orifice in a tube. The influence of a concentric outlet contraction is found to be negligible for low 'supercritical' swirl. For high 'subcritical' swirl, the outlet geometry is found to have a significant influence throughout the flow field and, in the case of an eccentric (i.e., offset) outlet, to lead to an asymmetric flow with a distorted core. In no case was the core found to precess or the flow to be periodic.

Authors:
; ;  [1]
  1. Department of Engineering (Mechanical Engineering), University of Liverpool, Brownlow Street, Liverpool, Merseyside L69 3GH (United Kingdom)
Publication Date:
OSTI Identifier:
20849477
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Fluids (1994); Journal Volume: 18; Journal Issue: 12; Other Information: DOI: 10.1063/1.2400075; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ASYMMETRY; GEOMETRY; LASERS; ORIFICES; PERIODICITY; TUBES; TURBULENT FLOW

Citation Formats

Escudier, M.P., Nickson, A.K., and Poole, R.J. Influence of outlet geometry on strongly swirling turbulent flow through a circular tube. United States: N. p., 2006. Web. doi:10.1063/1.2400075.
Escudier, M.P., Nickson, A.K., & Poole, R.J. Influence of outlet geometry on strongly swirling turbulent flow through a circular tube. United States. doi:10.1063/1.2400075.
Escudier, M.P., Nickson, A.K., and Poole, R.J. Fri . "Influence of outlet geometry on strongly swirling turbulent flow through a circular tube". United States. doi:10.1063/1.2400075.
@article{osti_20849477,
title = {Influence of outlet geometry on strongly swirling turbulent flow through a circular tube},
author = {Escudier, M.P. and Nickson, A.K. and Poole, R.J.},
abstractNote = {The results are reported for an extensive series of measurements (using laser Doppler anemometry) of the mean and fluctuating flow fields for swirling turbulent flow downstream of an orifice in a tube. The influence of a concentric outlet contraction is found to be negligible for low 'supercritical' swirl. For high 'subcritical' swirl, the outlet geometry is found to have a significant influence throughout the flow field and, in the case of an eccentric (i.e., offset) outlet, to lead to an asymmetric flow with a distorted core. In no case was the core found to precess or the flow to be periodic.},
doi = {10.1063/1.2400075},
journal = {Physics of Fluids (1994)},
number = 12,
volume = 18,
place = {United States},
year = {Fri Dec 15 00:00:00 EST 2006},
month = {Fri Dec 15 00:00:00 EST 2006}
}