An experimental investigation of the sonic criterion for transition from regular to Mach reflection of weak shock waves

Simple item page
dc.contributor.authorLock, Gary Daviden_US
dc.date.accessioned2024-08-14T21:07:33Z
dc.date.available2024-08-14T21:07:33Z
dc.date.copyright1985en_US
dc.date.issued1985
dc.degree.departmentDepartment of Physicsen_US
dc.degree.levelMaster of Science M.Sc.en
dc.description.abstractThe signal speed, i.e. the sound speed plus the particle velocity, behind weak reflected shock waves has been measured for several shock strengths close to the point of transition from regular to Mach reflection. The signal speed was measured using a schlieren system to photograph acoustic signals created by a spark discharge or by a shallow crevice in the reflecting surface. Additionally, signal speed measurements were made using pressure gauges. The results from both methods yielded equal values within experimental error. The theoretical signal speeds behind the regularly reflected shocks were calculated using a non-stationary model and agreed with the measured values at large angles of incidence. As the signal speed approached the speed of the shock reflection point the measured values of the signal speed deviated significantly from the theorectical predictions. It was found that, within experimental uncertainty, transition from regular to Mach reflection of weak shock waves occured at the experimentally observed sonic point, i.e. when the signal speed was equal to the speed of the shock reflection point, and this sonic point did not coincide with the theoretical value.
dc.format.extent96 pages
dc.identifier.urihttps://hdl.handle.net/1828/18740
dc.rightsAvailable to the World Wide Weben_US
dc.titleAn experimental investigation of the sonic criterion for transition from regular to Mach reflection of weak shock wavesen_US
dc.typeThesisen_US

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
LOCK_Gary_David_MSC_1985_100978.pdf
Size:
18.51 MB
Format:
Adobe Portable Document Format
Download

Collections

Electronic Theses and Dissertations (ETD)
Theses (Physics and Astronomy)
 
University of Victoria Libraries

We acknowledge and respect the Lək̓ʷəŋən (Songhees and Esquimalt) Peoples on whose territory the university stands, and the Lək̓ʷəŋən and W̱SÁNEĆ Peoples whose historical relationships with the land continue to this day.