A novel centrifugal diffuser test device
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Authors
Shreeve, R.P.
Schulz, H.D.
Erwin, J.R.
Schumann, L.
Subjects
CASCADE WIND TUNNELS
CENTRIFUGAL COMPRESSORS
DIFFUSERS
LOW SPEED WIND TUNNELS
WIND TUNNEL TESTS
COMPUTATIONAL FLUID DYNAMICS
DATA ACQUISITION
FLOW GEOMETRY
MASS FLOW
VORTEX GENERATORS
WALL PRESSURE
CENTRIFUGAL COMPRESSORS
DIFFUSERS
LOW SPEED WIND TUNNELS
WIND TUNNEL TESTS
COMPUTATIONAL FLUID DYNAMICS
DATA ACQUISITION
FLOW GEOMETRY
MASS FLOW
VORTEX GENERATORS
WALL PRESSURE
Advisors
Date of Issue
1985-09
Date
Sep 01, 1985
Publisher
Language
Abstract
A large scale (2 in.-wide test vanes at 50-in. inlet diameter), low speed (100-200 ft/sec) steady flow radial cascade wind tunnel for diffuser studies was designed, built and tested. The apparatus was shown to provide flow angles (from radial) in the range of 58-72 deg with suitable spanwise profiles. The novel flow angle control mechanism was shown to work, but measured flow angles were somewhat smaller than expected. The mechanism for controlling case-wall boundary layer profile did not behave as predicted. Attempts to predict the generated flow both analytically and with computational codes are compared with initial measurements. The low speed apparatus will be used to obtain detailed data for diffuser design and analysis code verification, and to provide experience toward the design of a high speed device.
Type
Preprint
Description
Series/Report No
Department
Organization
Glenn Research Center
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.