Wave Packets in High-Speed Boundary Layers
Abstract
The Mack amplitude method for laminar-turbulent transition refers to the evaluation of integrals over spanwise wave number and frequency in wave packets or wave trains having broad intervals of the parameters. Ad hoc approximations are still used for evaluation of the integrals to match experimental data. In the proposed research, the evaluation of these integrals will be performed using rigorous mathematical methods for asymptotic expansions of these integrals. The 3-year proposed project will address dynamics of wave packets and wave trains of unstable rst and second Mack modes in 2D high-speed boundary layers. The LST results will be evaluated using the steepest descent method from the perspective of application to the eN -method. To have the results generic, boundary layers of calorically perfect gas over a at plate/wedge/sharp cone will be considered.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- May 08, 2020
- Source ID
- N000142012502
Entities
People
- Anatoli Tumin
Organizations
- Office of Naval Research
- United States Navy
- University of Arizona