CUED Publications database

The effect of nonequilibrium boundary layers on compressor performance

Wheeler, APS and Dickens, AMJ and Miller, RJ (2018) The effect of nonequilibrium boundary layers on compressor performance. Journal of Turbomachinery, 140. ISSN 0889-504X

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Abstract

The paper investigates the effect of nonequilibrium behavior of boundary layers on the profile loss of a compressor. The investigation is undertaken using both high fidelity simulations of a midheight section of a compressor blade and a reduced order model, MISES. The solutions are validated using experimental measurements made in the embedded stage of a multistage low speed compressor. The paper shows that up to 35% of the suction surface boundary layer of the compressor blade exhibits nonequilibrium behavior. The size of this region reduces as the Reynolds number is increased. The nonequilibrium behavior was found to reduce profile loss in cases of attached transition and raise loss where transition occurs through separation.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div A > Turbomachinery
Depositing User: Cron Job
Date Deposited: 29 Oct 2018 20:06
Last Modified: 09 Sep 2021 00:32
DOI: 10.1115/1.4040094