Physics of Mach 7+ Hypersonic Propulsion Flowpath

featuring

Dr. Tonghun Lee

Professor, Department of Aeronautics & Astronautics | Stanford University

Tuesday, September 1st from 11:00 am to 12:00 pm
MRDC 4211
https://teams.microsoft.com/meet/290349859348279?p=KHugRE8v7B3xF4ZNKc

Abstract:
Hypersonic propulsion systems operating at high Mach numbers require a unique understanding of relevant gas dynamics and reactive chemistry to ensure that maximum thrust can be generated with minimal loss in efficiency. Key physics that govern the design of various components in a hypersonic propulsion system will be presented using both experimental data obtained in the ‘Arc Heated Combustion Tunnel (ACT-II)’ at Stanford University and theoretical modeling of key phenomena. Concepts such as inlet design, scram to ram transition, unstart mitigation, stabilization of combustion, and nozzle performance will be included. The physics discussed here will present critical guidelines for design of both commercial and military hypersonic propulsion systems in the future. 

Bio: 
Dr. Tonghun Lee is a Professor in the Department of Aeronautics & Astronautics at Stanford University, where he directs the ‘Stanford Propulsion and Space Exploration’ Laboratory. His research is focused on utilizing advanced laser and optical diagnostics for study of next generation aero propulsion concepts such as hypersonic scramjets, compact UAVs, and integration of sustainable aviation fuels. Professor Lee is the academic lead for the Department of Defense Center for UAS Propulsion (CUP), and a member of the FAA Center of Excellence in Sustainable Aviation, ASCENT.