Conditionally Analyzed Mean Velocity and Turbulence Measurements in a Plume-Induced Boundary Layer Separated Flowfield

The shock-induced separation process was found to dramatically increase the streamwise and transverse Reynolds normal stresses (which both peak near reattachment), the primary shear stress, and the normal stress anisotropy. The shock-separated shear layer consists of only a single layer with a large initial growth rate followed by a much smaller growth rate, instead of the two layers found in rapidly expanded shear layers. The large-scale structures in the shock-separated shear layer span the shear layer width and exhibit a uniform transverse size. These structures display positive and negative shear stresses on their upper and lower edges, respectively, and are greatly altered by reattachment. All turbulent stresses decrease and the normal stress isotropy increases in the developing wake.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Mechanical Engineering

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2015

Author dc:creator

• Palko, Carl Wayne

Contributors dc:contributor

• Dutton, J. Craig

• Physics, Fluid and Plasma

Language dc:language

eng

Identifier

(MiAaPQ)AAI9834727

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/83965