Single-laser krypton tagging velocimetry (KTV) investigation of air and N2 boundary-layer flows over a hollow cylinder in the stevens shock tube

M. A. Mustafa, D. Shekhtman, N. J. Parziale

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

Results are presented for a single-laser Krypton Tagging Velocimetry (KTV) scheme applied to the flow over a hollow cylinder in a shock tube. This scheme is comparatively simpler and cheaper to implement than previous dual-laser schemes and maintained an SNR of ≈ 2 in these experiments. Results are presented for experiments performed in 99% N2/1% Kr and 75% N2/5% Kr/20% O2 with Reynolds numbers ranging from 1e5-1e6. For the first time KTV is implemented in air at a pressure of 19 kPa and in N2 at 25 kPa. The data points over the cylinder are mapped to corresponding wall-normal locations above a flat plate, which allows for comparison with flat-plate boundary-layer theory. Agreement between theory and experiment is excellent, bringing confidence to the utility of KTV in impulse facilities and at the aforementioned conditions.

Original languageEnglish
Title of host publicationAIAA Scitech 2019 Forum
DOIs
StatePublished - 2019
EventAIAA Scitech Forum, 2019 - San Diego, United States
Duration: 7 Jan 201911 Jan 2019

Publication series

NameAIAA Scitech 2019 Forum

Conference

ConferenceAIAA Scitech Forum, 2019
Country/TerritoryUnited States
CitySan Diego
Period7/01/1911/01/19

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