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contributor authorR. Dénos
contributor authorV. Michelassi
contributor authorF. Martelli
contributor authorT. Arts
contributor authorG. Paniagua
date accessioned2017-05-09T00:06:20Z
date available2017-05-09T00:06:20Z
date copyrightJanuary, 2001
date issued2001
identifier issn0889-504X
identifier otherJOTUEI-28686#81_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/126083
description abstractThe paper focuses on the unsteady pressure field measured around the rotor midspan profile of the VKI Brite transonic turbine stage. The understanding of the complex unsteady flow field is supported by a quasi-three-dimensional unsteady Navier–Stokes computation using a k–ω turbulence model and a modified version of the Abu-Ghannam and Shaw correlation for the onset of transition. The agreement between computational and experimental results is satisfactory. They both reveal the dominance of the vane shock in the interaction. For this reason, it is difficult to identify the influence of vane-wake ingestion in the rotor passage from the experimental data. However, the computations allow us to draw some useful conclusions in this respect. The effect of the variation of the rotational speed, the stator–rotor spacing, and the stator trailing edge coolant flow ejection is investigated and the unsteady blade force pattern is analyzed.
publisherThe American Society of Mechanical Engineers (ASME)
titleInvestigation of the Unsteady Rotor Aerodynamics in a Transonic Turbine Stage
typeJournal Paper
journal volume123
journal issue1
journal titleJournal of Turbomachinery
identifier doi10.1115/1.1314607
journal fristpage81
journal lastpage89
identifier eissn1528-8900
keywordsShock (Mechanics)
keywordsRotors
keywordsTurbines
keywordsBlades
keywordsComputation
keywordsStators
keywordsPressure
keywordsFlow (Dynamics)
keywordsWakes AND Fluctuations (Physics)
treeJournal of Turbomachinery:;2001:;volume( 123 ):;issue: 001
contenttypeFulltext


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