Velocity and Transient Measurements in a Shock Tube Using a Hot-Wire Anemometer.
Abstract
This Thesis investigated the suitability of the TSI IFA-100 Intelligent Flow Analyzer system, with TSI 1210 and 1214-T1.5 hot-wire sensors, to measure the velocity behind the incident shock wave in a shock tube. Velocity fluctuations as a result of Karman vortex street formation behind a 3/16-inch cylinder were also measured. The range of Reynolds numbers was 23,000 < Re < 35,000 in this configuration. Calibration of the hot-wire was accomplished from ambient temperature to 275 F with individual calibrations at discreet temperatures (ie. 74 F, 175 F, 275 F) designed to cover the expected test conditions up to 200 F and 620 ft/s. Velocities measured ranged from 312 to 590 ft/s with 4 percent or better accuracy. Velocity fluctuations were measured and computed as turbulence intensities, and ranged from 1.75 to 9.52 percent. The results of the investigation showed favorable indication that velocity can be measured with reasonable accuracy in a shock tube with the IFA-100 system. Keywords: Hot-wire anemometry; Turbulence; Karman vortex street.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1984
- Accession Number
- ADA154694
Entities
People
- S. M. Mcqueen
Organizations
- Air Force Institute of Technology