id author title date pages extension mime words sentence flesch summary cache txt 1g05fb51z8x Alexander J. Arndt Control of Stationary and Traveling Cross-Flow Modes in a Mach 6 Boundary Layer Using Passive Patterned Roughness and Unsteady Plasma Excitation 2019 .txt text/plain 338 15 49 Spanwise-periodic roughness that was designed to excite selected wavelengths of stationary cross-flow modes was investigated in a 3-D boundary layer at Mach 6. Passive surface roughness, consisting of indentations (dimples) was evenly spaced around the cone at an axial location that was just upstream of the linear stability neutral growth branch for stationary cross-flow modes. cache/1g05fb51z8x.txt txt/1g05fb51z8x.txt