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Operating Characteristics of the Multiple Critical Venturi System and Secondary Calibration Nozzles Used for Weight-Flow Measurements in the Langley 16-Foot Transonic TunnelAn investigation has been conducted in the Langley 16 Foot Transonic Tunnel to determine the weight flow measurement characteristics of a multiple critical Venturi system and the nozzle discharge coefficient characteristics of a series of convergent calibration nozzles. The effects on model discharge coefficient of nozzle throat area, model choke plate open area, nozzle pressure ratio, jet total temperature, and number and combination of operating Venturis were investigated. Tests were conducted at static conditions (tunnel wind off) at nozzle pressure ratios from 1.3 to 7.0.
Document ID
19860000549
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Berrier, B. L. (NASA Langley Research Center Hampton, VA, United States)
Leavitt, L. D. (NASA Langley Research Center Hampton, VA, United States)
Bangert, L. S. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 5, 2013
Publication Date
September 1, 1985
Subject Category
Aerodynamics
Report/Patent Number
L-15960
NASA-TM-86405
NAS 1.15:86405
Accession Number
86N10016
Funding Number(s)
PROJECT: RTOP 505-40-90-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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