Experimental Measurements of Hypseronic Instabilities over Ogive-cylinders at Mach 6

Author

Jonathan Luke Hill

Date of Award

3-2020

Document Type

Thesis

Degree Name

Master of Science

Department

Department of Aeronautics and Astronautics

First Advisor

Jeffrey R. Komives, PhD

Second Advisor

Mark F. Reeder, PhD

Abstract

Hypersonic boundary layer transition experiments were performed in the Air Force Research Lab (AFRL) Mach 6 Ludwieg tube over a meter long ogive-cylinder model with interchangeable nose tip angles and bluntnesses. Measurements of instabilities were captured via focused laser differential interferometry (FLDI), surface mounted pressure sensors, and high speed Schlieren imagery at nominal unit Reynolds numbers ranging from 4.0*10⁶/m to 1.4*10⁷/m. This study attempts to isolate the effects of increasing tip angle and spherical bluntness on instabilities measured downstream over the cylindrical body of the model.

AFIT Designator

AFIT-ENY-MS-20-M-265

DTIC Accession Number

AD1101505

Comments

Co-advised thesis.

Recommended Citation

Hill, Jonathan Luke, "Experimental Measurements of Hypseronic Instabilities over Ogive-cylinders at Mach 6" (2020). Theses and Dissertations. 3610.
https://scholar.afit.edu/etd/3610