Development of an Active Restart Mechanism for Hypersonic Inlets
||08 June 2021
||1:00 PM - 2:30 PM
||Online via Zoom
||For more information, please contact the Graduate Research School.
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Optimal scramjet inlet performance is essential for sustained hypersonic flight. Variations from the ideal inlet operating conditions will lead to decreased air compression efficiency. Severe decreases in inlet performance can occur if a scramjet inlet 'unstarts'. Scramjet engine unstart can occur if the combustion induced pressure rise is too high, or if the angle of attack is beyond its operating limits, or if flight at off-design Mach numbers is attempted. Past research has primarily focused on the development of techniques which prevent unstart from occurring. However, recent research has focused on methods which restart the inlet if it has unstarted. This work primarily focuses on developing a restart mechanism which is able to restart a realistic 3D inlet unstarted from combustion induced back pressure rise. The investigation is to be primarily experimental utilising the TUSQ Hypersonic Wind Tunnel Facility with numerical methods also employed assisting with model design.