scholarly journals Experimental study of shock-accelerated inclined heavy gas cylinder

2017 ◽  
Vol 58 (6) ◽  
Author(s):  
Dell Olmstead ◽  
Patrick Wayne ◽  
Jae-Hwun Yoo ◽  
Sanjay Kumar ◽  
C. Randall Truman ◽  
...  
Keyword(s):  
Experimental Study ◽  
Gas Cylinder ◽  
Heavy Gas

scholarly journals Experimental Study on Mechanism of the Water-insoluble Heavy Gas Diluted With Water Curtain

2012 ◽  
Vol 45 ◽  
pp. 378-383 ◽  
Author(s):  
Weiwei Guo ◽  
Taotao Yue ◽  
Ruizhi Wang ◽  
Min Hua ◽  
Yi Liu ◽  
...  
Keyword(s):  
Experimental Study ◽  
Water Curtain ◽  
Heavy Gas

Evolution of heavy gas cylinder under reshock conditions

2014 ◽  
Vol 17 (2) ◽  
pp. 123-129 ◽  
Author(s):  
Zhigang Zhai ◽  
Fu Zhang ◽  
Ting Si ◽  
Xisheng Luo
Keyword(s):  
Gas Cylinder ◽  
Heavy Gas

scholarly journals Experimental investigation of cylindrical converging shock waves interacting with a polygonal heavy gas cylinder

2015 ◽  
Vol 784 ◽  
pp. 225-251 ◽  
Author(s):  
Ting Si ◽  
Tong Long ◽  
Zhigang Zhai ◽  
Xisheng Luo
Keyword(s):  
Shock Waves ◽  
Shock Tube ◽  
High Speed ◽  
Initial Conditions ◽  
Laser Sheet ◽  
Imaging Method ◽  
Gas Cylinder ◽  
Diaphragmless Shock Tube ◽  
Converging Shock Waves ◽  
Heavy Gas

The interaction of cylindrical converging shock waves with a polygonal heavy gas cylinder is studied experimentally in a vertical annular diaphragmless shock tube. The reliability of the shock tube facility is verified in advance by capturing the cylindrical shock movements during the convergence and reflection processes using high-speed schlieren photography. Three types of air/SF6 polygonal interfaces with cross-sections of an octagon, a square and an equilateral triangle are formed by the soap film technique. A high-speed laser sheet imaging method is employed to monitor the evolution of the three polygonal interfaces subjected to the converging shock waves. In the experiments, the Mach number of the incident cylindrical shock at its first contact with each interface is maintained to be 1.35 for all three cases. The results show that the evolution of the polygonal interfaces is heavily dependent on the initial conditions, such as the interface shapes and the shock features. A theoretical model for circulation initially deposited along the air/SF6 polygonal interface is developed based on the theory of Samtaney & Zabusky (J. Fluid Mech., vol. 269, 1994, pp. 45–78). The circulation depositions along the initial interface result in the differences in flow features among the three polygonal interfaces, including the interface velocities and the perturbation growth rates. In comparison with planar shock cases, there are distinct phenomena caused by the convergence effects, including the variation of shock strength during imploding and exploding (geometric convergence), consecutive reshocks on the interface (compressibility), and special behaviours of the movement of the interface structures (phase inversion).

scholarly journals Infrared Location,Quantitative Identification,and Experimental Study of Defects in the Winding Layer of a CNG Gas Cylinder

2020 ◽  
Vol 42 (2) ◽  
pp. 144-151
Author(s):  
克勤 丁 ◽  
鹰 兰 ◽  
松涛 孔 ◽  
堃 王 ◽  
润 张
Keyword(s):  
Experimental Study ◽  
Gas Cylinder ◽  
Quantitative Identification

Interaction of a weak shock wave with a discontinuous heavy-gas cylinder

2015 ◽  
Vol 27 (6) ◽  
pp. 064104 ◽  
Author(s):  
Xiansheng Wang ◽  
Dangguo Yang ◽  
Junqiang Wu ◽  
Xisheng Luo
Keyword(s):  
Shock Wave ◽  
Weak Shock ◽  
Weak Shock Wave ◽  
Gas Cylinder ◽  
Heavy Gas

scholarly journals Two-dimensional viscous flow simulation of a shock accelerated heavy gas cylinder

2011 ◽  
Vol 23 (2) ◽  
pp. 024102 ◽  
Author(s):  
Santhosh K. Shankar ◽  
Soshi Kawai ◽  
Sanjiva K. Lele
Keyword(s):  
Viscous Flow ◽  
Flow Simulation ◽  
Two Dimensional ◽  
Gas Cylinder ◽  
Heavy Gas
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