Second mode growth in a high-velocity boundary layer using stability theory and DNS.
Abstract not provided.
Harris, Shaun↗
Engineering topics
Bitter, Neal
Publications and source records attributed to Bitter, Neal.
Coupling of Laminar-Turbulent Transition with RANS Computational Fluid Dynamics
This project combines several new concepts to create a boundary layer transition prediction capability that is suitable for analyzing modern hypersonic flight vehicles. The first new concept is the use of ''optimization'' methods to detect the hydrodynamic instabilities that cause boundary layer transition; the use of this method removes the need for many limiting assumptions of other methods and enables quantification of the interactions between boundary layer instabilities and the flow field imperfections that generate them. The second new concept is the execution of transition analysis within a conventional hypersonics CFD code, using the same mesh and numerical schemes for the transition analysis and the laminar flow simulation. This feature enables rapid execution of transition analysis with less user oversight required and no interpolation steps needed.
42 ENGINEERING↗