Shear Layers

Optical investigation of a regularized shear layer for the examination of the aero-optical component of the jitter

In this work we examined the aero-optical component of the jitter that results from a forced shear layer. Full 2D wavefronts were collected in Notre Dame's Tri-Sonic facility with the high speed flow set at $M = 0.6$ and the low speed flow set at $M …

Spanwise Wavefront Analysis of Turbulence Amplification in a Turbulent Boundary Layer Forced by an External Shear Layer.

Non-intrusive optical approach was used to study the regions of the amplified turbulence inside the externally forced boundary layer. Spatially-temporallyresolved wavefronts in the spanwise direction were collected and analyzed. The external forcing …

Optical Investigation Of Turbulence Modulation In An Externally Forced, High Reynolds Number Boundary Layer

An optical investigation of an externally forced boundary layer is presented. Measurements were conducted in Notre Dame’s Compressible Shear Layer Facility. The forced shear layer created an organized spatially-temporally-varying external flow …