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Flow Quality Studies of the NASA Glenn Research Center Icing Research Tunnel Circuit (1995 Tests)The purpose of conducting the flow-field surveys described in this report was to more fully document the flow quality in several areas of the tunnel circuit in the NASA Glenn Research Center Icing Research Tunnel. The results from these surveys provide insight into areas of the tunnel that were known to exhibit poor flow quality characteristics and provide data that will be useful to the design of flow quality improvements and a new heat exchanger for the facility. An instrumented traversing mechanism was used to survey the flow field at several large cross sections of the tunnel loop over the entire speed range of the facility. Flow-field data were collected at five stations in the tunnel loop, including downstream of the fan drive motor housing, upstream and downstream of the heat exchanger, and upstream and downstream of the spraybars located in the settling chamber upstream of the test section. The data collected during these surveys greatly expanded the data base describing the flow quality in each of these areas. The new data matched closely the flow quality trends recorded from earlier tests. Data collected downstream of the heat exchanger and in the settling chamber showed how the configuration of the folded heat exchanger affected the pressure, velocity, and flow angle distributions in these areas. Smoke flow visualization was also used to qualitatively study the flow field in an area downstream of the drive fan and in the settling chamber/contraction section.
Document ID
20000034231
Acquisition Source
Glenn Research Center
Document Type
Technical Memorandum (TM)
Authors
Arrington, E. Allen (NYMA, Inc. Brook Park, OH United States)
Kee-Bowling, Bonnie A. (NASA Glenn Research Center Cleveland, OH United States)
Gonsalez, Jose C. (NYMA, Inc. Brook Park, OH United States)
Date Acquired
September 7, 2013
Publication Date
January 1, 2000
Subject Category
Research And Support Facilities (Air)
Report/Patent Number
E-10767
NAS 1.15:107479
NASA/TM-2000-107479
Funding Number(s)
PROJECT: RTOP 523-90-1A
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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