THERMAL SCIENCE

International Scientific Journal

STUDY ON TIP LEAKAGE VORTEX IN AN AXIAL FLOW PUMP BASED ON MODIFIED SHEAR STRESS TRANSPORT K-ω TURBULENCE MODEL

ABSTRACT
The tip leakage vortex structure and trajectory in an axial flow pump were investigated numerically and experimentally based on the modified shear stress transport k-ω turbulence model. Numerical results were compared with the experimental leakage vortex trajectories, and a good agreement was presented. The detailed trajectories of tip leakage vortex show that the starting point of tip leakage vortex occurs near the leading edge at small flow rate, and it moves from leading edge to about 30% chord length at design flow rate. At larger flow rate condition, the starting point of tip leakage vortex shifts to the middle of chord.
KEYWORDS
PAPER SUBMITTED: 2013-01-18
PAPER REVISED: 2013-04-26
PAPER ACCEPTED: 2013-04-27
PUBLISHED ONLINE: 2013-12-28
DOI REFERENCE: https://doi.org/10.2298/TSCI1305551Z
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2013, VOLUME 17, ISSUE Issue 5, PAGES [1551 - 1555]
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© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence