Johansen, Craig T.Pakdaman, Seyed Ahmad2014-09-262014-11-172014-09-262014Pakdaman, S. A. (2014). Shock Wave Acceleration in a High-Aspect-Ratio Shock Tube (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/27777http://hdl.handle.net/11023/1821A shock tube model was developed to predict diaphragm opening time, shock acceleration, and shock formation in a rectangular channel. Heat transfer and friction effects at the tube walls on shock acceleration were analyzed. The model was compared to shock tube experiments using slit-type (fast opening time) and petal-type (slow opening time) diaphragms. Helium and air were used as fluid media in the high-pressure and low-pressure sections of the rectangular shock tube, respectively. Due to the high-aspect-ratio of the rectangular shock tube cross-section, a methodology was developed to produce petal diaphragms resulting in consistent bursting pressure, petaling without fragment release and symmetric opening resulting in a symmetric shock wave. Schlieren imaging was also used to investigate the shock wave structure development.engUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.Engineering--MechanicalShock TubeShock FormationHydrogen Safetymaster thesis10.11575/PRISM/27777