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Record 15 of 1374
Hot-wire anemometry in transonic flow
Author and Affiliation:
Horstman, C. C.
Rose, W. C.(NASA Ames Research Center, Moffett Field, Calif., United States)
Abstract: The use of hot-wire anemometry for obtaining fluctuating data in transonic flows has been evaluated. From hot-wire heat loss correlations based on previous transonic data, the sensitivity coefficients for velocity, density, and total temperature fluctuations have been calculated for a wide range of test conditions and sensor parameters. For sensor Reynolds number greater than 20 and high sensor overheat ratios, the velocity sensitivity remains independent of Mach number and equal to the density sensitivity. These conditions were verified by comparisons of predicted sensitivities with those from recent direct calibrations in transonic flows. Based on these results, techniques are presented to obtain meaningful measurements of fluctuating velocity, density, and Reynolds shear stress using hot-wire and hot-film anemometers. Example of these measurements are presented for two transonic boundary layers.
Publication Date: Mar 01, 1977
Document ID:
19770043880
(Acquired Dec 01, 1995)
Accession Number: 77A26732
Subject Category: FLUID MECHANICS AND HEAT TRANSFER
Document Type: Journal Article
Publication Information: AIAA Journal; 15; Mar. 197
Publisher Information: United States
Financial Sponsor: NASA; United States
Description: 7p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: FLOW VELOCITY; GAS DENSITY; HOT-WIRE ANEMOMETERS; REYNOLDS STRESS; TRANSONIC FLOW; CALIBRATING; MACH NUMBER; REYNOLDS NUMBER; SENSITIVITY; SHEAR STRESS
Imprint And Other Notes: AIAA Journal, vol. 15, Mar. 1977, p. 395-401.
Miscellaneous Notes: p. 395-401
Availability Source: Other Sources
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