Graduation Semester and Year
2017
Language
English
Document Type
Dissertation
Degree Name
Doctor of Philosophy in Aerospace Engineering
Department
Mechanical and Aerospace Engineering
First Advisor
Brian Dennis
Second Advisor
Frank Lu
Abstract
Shock wave/boundary-layer interactions (SBLIs) are one of the most complex flow phenomena because of the different types of physics involved (i.e., viscous versus inviscid) and their side effects such as boundary layer separation and extreme localized heating. Control surfaces based on compliant mechanisms are becoming a reality and introduce an additional variable into the already complex SBLI, namely surface curvature. The purpose of the present work is to systematically study the effects of surface curvature on laminar, ramp-induced SBLIs. This is accomplished using numerical and theoretical approaches in the form of numerical solutions to the compressible Navier–Stokes equations and triple-deck theory, respectively. Results include a unique comparison between triple-deck theory and numerical solutions to the Navier–Stokes equations, a new scaling relationship involving Reynolds number, Mach number and radius of curvature, and unsteady three- dimensional results for a select case, which was undertaken to investigate the onset of unsteadiness in the nominally steady, two-dimensional SBLI.
Keywords
Shock Wave/Boundary Layer Interactions
Disciplines
Aerospace Engineering | Engineering | Mechanical Engineering
License
This work is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 4.0 International License.
Recommended Citation
Grisham, James Ray, "Numerical and Analytical Study of Curvature Effects in Laminar Shock Wave/Boundary Layer Interactions" (2017). Mechanical and Aerospace Engineering Dissertations. 372.
https://mavmatrix.uta.edu/mechaerospace_dissertations/372
Comments
Degree granted by The University of Texas at Arlington