scholarly journals Computational Study on Micro Shock Tube Flows with Gradual Diaphragm Rupture Process

2012 ◽  
Vol 02 (04) ◽  
pp. 235-241 ◽  
Author(s):  
Arun Kumar Rajagopal ◽  
Heuy Dong Kim ◽  
Toshiaki Setoguchi
Keyword(s):  
Shock Tube ◽  
Computational Study ◽  
Rupture Process ◽  
Diaphragm Rupture

scholarly journals Active Shock-tube-diaphragm Rupture with Laser Beam Irradiation

2004 ◽  
Author(s):  
Toru Takahashi ◽  
Keiko Watanabe ◽  
Akihiro Sasoh ◽  
Hiroyuki Torikai ◽  
Qian-Suo Yang
Keyword(s):  
Laser Beam ◽  
Shock Tube ◽  
Beam Irradiation ◽  
Diaphragm Rupture ◽  
Laser Beam Irradiation

Effect of Finite Diaphragm Rupture Process on Microshock Tube Flows

2013 ◽  
Vol 135 (8) ◽  
Author(s):  
Arun K. R ◽  
H. D. Kim ◽  
T. Setoguchi
Keyword(s):  
Supersonic Flow ◽  
Flow Field ◽  
Shock Front ◽  
Supersonic Nozzle ◽  
Propagation Speed ◽  
Propagation Distance ◽  
Rupture Process ◽  
Shock Propagation ◽  
Diaphragm Rupture ◽  
Contact Distance

The study of flow physics in microshock tubes is of growing importance with the recent development of microscale technology. The flow characteristics in a microshock tube is considerably different from that of the conventional macroshock tube due to the boundary layer effects and high Knudsen number effects. In the present study an axisymmetric computational fluid dynamics (CFD) method was employed to simulate the microshock tube flow field with Maxwell's slip velocity and temperature jump boundary conditions, to accommodate the rarefaction effects. The effects of finite diaphragm rupture process and partial diaphragm rupture on the flow field and the wave propagations were investigated, in detail. The results show that the shock propagation distance attenuates rapidly for a microshock tube compared to a macroshock tube. For microshock tubes, the contact surface comes closer to the shock front compared to the analytical macroshock tube case. Due to the finite diaphragm rupture process the moving shock front will be generated after a certain distance ahead of the diaphragm and get attenuated rapidly as it propagates compared to the sudden rupture case. The shock-contact distance reduces considerably for the finite diaphragm rupture case compared to the sudden diaphragm rupture process. A partially burst diaphragm within a microshock tube initiates a supersonic flow in the vicinity of the diaphragm similar to that of a supersonic nozzle flow. The supersonic flow expansion leads to the formation of oblique shock cells ahead of the diaphragm and significantly attenuates the moving shock propagation speed.

Optical study of a light diaphragm rupture process in an expansion tube

Shock Waves ◽  
2000 ◽  
Vol 10 (3) ◽  
pp. 167-178 ◽  
Author(s):  
Margaret Wegener ◽  
Mark Sutcliffe ◽  
Richard Morgan
Keyword(s):  
Rupture Process ◽  
Optical Study ◽  
Expansion Tube ◽  
Diaphragm Rupture

Influence of cellophane diaphragm rupture processes on the shock wave formation in a shock tube

Shock Waves ◽  
2020 ◽  
Vol 30 (5) ◽  
pp. 545-557
Author(s):  
G. Fukushima ◽  
T. Tamba ◽  
A. Iwakawa ◽  
A. Sasoh
Keyword(s):  
Shock Wave ◽  
Shock Tube ◽  
Wave Formation ◽  
Diaphragm Rupture ◽  
Shock Wave Formation

scholarly journals A computational study of the shock-wave reflection in a shock-tube and the filmwise condensation of a vapour on shock-tube walls.

1990 ◽  
Vol 56 (532) ◽  
pp. 3732-3739
Author(s):  
Toshiyuki MIZUTANI ◽  
Shigeo FUJIKAWA ◽  
Yasunari TAKANO ◽  
Mehdi MAEREFAT ◽  
Teruaki AKAMATSU
Keyword(s):  
Shock Wave ◽  
Shock Tube ◽  
Wave Reflection ◽  
Computational Study ◽  
Shock Wave Reflection

scholarly journals Shock-Tube Operation with Laser-Beam-Induced Diaphragm Rupture

AIAA Journal ◽  
2006 ◽  
Vol 44 (5) ◽  
pp. 1110-1112 ◽  
Author(s):  
Akihiro Sasoh ◽  
Toru Takahashi ◽  
Keiko Watanabe ◽  
Hiroyuki Torikai ◽  
Qian-Suo Yang
Keyword(s):  
Laser Beam ◽  
Shock Tube ◽  
Diaphragm Rupture
Sign in / Sign up

Export Citation Format

Share Document