An Experimental Evaluation of Transient Flows in a Supersonic Gun Tunnel

Amir, Al-Falahi and Yusoff, M. Z. and Diyar, I. Ahmed (2012) An Experimental Evaluation of Transient Flows in a Supersonic Gun Tunnel. International Journal of Automotive and Mechanical Engineering (IJAME), 6 (Jul. pp. 701-712. ISSN 2229-8649 (Print); 2180-1606 (Online). (Published)

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An experimental study has been performed to investigate transient flows in a supersonic gun tunnel. The experimental work was performed using a short duration high speed flow test facility at the Universiti Tenaga Nasional (UNITEN). A physical description of the facility along with the principles of operation is provided. The pressure history of the flow process was captured using a fast response pressure transducer at three stations located at the end of the facility. Experimental measurements of shock strength, peak pressure and shock wave speed change of Air-Air as a driver/driven gas are then presented and compared with a further set of experimental measurements using the gas combination of Helium-Air. The shock wave speed was measured experimentally with a two pressure transducers technique. The results showed that the existence of the piston has a very significant influence on both the moving shock wave and peak pressure value achieved. The results provide a very good estimate for the above-mentioned parameters obtained after diaphragm rupture, and also provide a better understanding of the parameters that affect the performance of the facility.

Item Type: Article
Additional Information: Please click to official link
Uncontrolled Keywords: Gun tunnel, Shock strength, Peak pressure, Shock wave speed
Subjects: T Technology > TL Motor vehicles. Aeronautics. Astronautics
Faculty/Division: Unspecified
Depositing User: Noorul Farina Arifin
Date Deposited: 27 Feb 2013 01:56
Last Modified: 03 Mar 2015 08:01
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