CUED Publications database

Phase-averaged flow statistics in compressors using a rotated hot-wire technique

Jelly, TO and Day, IJ and di Mare, L (2017) Phase-averaged flow statistics in compressors using a rotated hot-wire technique. Experiments in Fluids, 58.

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Abstract

A technique based on a rotated hot wire has been developed to characterise the unsteady, three-dimensional flow field between compressor blade rows. Data are acquired from a slanted hot wire rotated through a number of orientations at each measurement point. Phase-averaged velocity statistics are obtained by solving a set of sensor response equations using a weighted, non-linear regression algorithm. The accuracy and robustness of the method were verified a priori by conducting a series of tests using synthetic data. The method is demonstrated by acquiring a full set of phase-averaged flow statistics in the wake of a compressor stator blade row. The technique allows three components of phase-averaged velocity, six components of phase-averaged deterministic stress, and six components of phase-averaged Reynolds stress to be recovered using a single rotated hot-wire probe.

Item Type: Article
Uncontrolled Keywords: hot-wire anemometry turbulence turbomachinery
Subjects: UNSPECIFIED
Divisions: Div A > Turbomachinery
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:26
Last Modified: 24 Nov 2017 20:34
DOI: