Investigation of air flow near a mach number of one by the Schileren Method.
Watkins, David Wayne, Jr.
Watkins, David Wayne
Keenan, J. H.
MetadataShow full item record
The problem investigated was the manner of dissipation of shocks in air flowing through a nozzle. The shocks observed were oblique shocks. They were formed by decreasing the back pressure on the nozzle exit by means of an ejector. The mouth of the nozzle was open to laboratory air. The back pressure was increased after the shocks were formed by closing the valve between the nozzle exit and the ejector, causing dissipation of the shocks. The phenomena were observed by means of a high speed movie camera. The results indicated that the shocks formed dissipated in the throat of the nozzle. They were never observed upstream from the throat.
This thesis document was issued under the authority of another institution, not NPS. At the time it was written, a copy was added to the NPS Library collection for reasons not now known. It has been included in the digital archive for its historical value to NPS. Not believed to be a CIVINS (Civilian Institutions) title.
Showing items related by title, author, creator and subject.
Smith, Larry R. (Monterey, California. Naval Postgraduate School, 2011-12);Pulse Detonation Engines (PDE) operate in a cyclic manner resulting in large changes in the combustion chamber pressure. The widely varying pressure ratio between the chamber and nozzle exit makes it difficult to efficiently ...
McCrorie, J. David. II (Monterey, California. Naval Postgraduate School, 1992-12);The particle size distribution inside the combustion chamber and the changes that occurred across the exhaust nozzle were measured in a subscale solid propellant rocket motor with a 2% aluminized end-burning propellant ...
Schnabel, Mark C. (Monterey, California: Naval Postgraduate School, 2017-06);Rotating detonation engines (RDEs) have the potential to further increase the performance of air-breathing propulsion devices and are currently being explored as an option for missions with wide altitude and flight Mach ...