Counter-driver shock tube
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A “counter-driver” shock tube was developed. In this device, two counter drivers are actuated with an appropriate delay time to generate the interaction between a shock wave and a flow in the opposite direction which is induced by another shock wave. The conditions for the counter drivers can be set independently. Each driver is activated by a separate electrically controlled diaphragm rupture device, in which a pneumatic piston drives a rupture needle with a temporal jitter of better than 1.1 ms. Operation demonstrations were conducted to evaluate the practical performance.
KeywordsShock tube Shock wave interaction
The authors acknowledge the valuable technical support provided by Mr. Akira Saito from the Technical Division, Nagoya University. This work was supported by Japan Society for the Promotion of Science (JSPS) “KAKENHI” through a Grant-in-Aid for Scientific Research, (S) 22226014, and that for Challenging Exploratory Research No. 25630390.
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