Effect of Porous Surfaces on Compressible Boundary Layers Perturbed by Free-Stream Disturbances
Abstract
Compressible pre-transitional boundary layers over flat and streamwise concave walls an exposed to free-stream vertical disturbances have been studied numerically and by asymptotic methods. Receptivity mechanisms have been explained for the first time, such as the generation and growth of nonlinear unsteady Gortler vortices, linear unsteady compressible Gortler vortices exposed to free-stream gusts, very first rigorous neutral curves of the incompressible Gortler vortices, and the competing effects of acoustic and vortical eigenmodes excited by free-stream disturbances. The output in terms of archival publications has been very good, i.e., six papers (+ one in revised submission in J. Fluid Mechanics), including three J. Fluid Mech. and one Phys. Fluids.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 04, 2019
- Accession Number
- AD1077628
Entities
People
- Pierre Riccó
Organizations
- University of Sheffield Department of Psychology