Mathematical simulation of the ejection of a gas suspension from a shock-tube channel under the action of a compressed gas

1998 ◽  
Vol 34 (3) ◽  
pp. 348-357
Author(s):  
A. G. Kutushev ◽  
A. V. Tatosov
Keyword(s):  
Shock Tube ◽  
Mathematical Simulation ◽  
Gas Suspension ◽  
Compressed Gas ◽  
Tube Channel

Quantifying the insertion loss of hearing protection using a compressed gas shock tube

2018 ◽  
Vol 143 (3) ◽  
pp. 1934-1934
Author(s):  
Theodore F. Argo ◽  
Nate Greene ◽  
James Easter ◽  
Daniel J. Tollin ◽  
Timothy J. Walilko
Keyword(s):  
Shock Tube ◽  
Insertion Loss ◽  
Hearing Protection ◽  
Compressed Gas ◽  
Loss Of Hearing

scholarly journals On the formation of Friedlander waves in a compressed-gas-driven shock tube

2016 ◽  
Vol 472 (2186) ◽  
pp. 20150611 ◽  
Author(s):  
Abiy F. Tasissa ◽  
Martin Hautefeuille ◽  
John H. Fitek ◽  
Raúl A. Radovitzky
Keyword(s):  
Shock Tube ◽  
Analytical Model ◽  
Blast Waves ◽  
Rational Approach ◽  
Initial Structure ◽  
Shock Tubes ◽  
Rarefaction Waves ◽  
Wave Interactions ◽  
Compressed Gas ◽  
Volume Method

Compressed-gas-driven shock tubes have become popular as a laboratory-scale replacement for field blast tests. The well-known initial structure of the Riemann problem eventually evolves into a shock structure thought to resemble a Friedlander wave, although this remains to be demonstrated theoretically. In this paper, we develop a semi-analytical model to predict the key characteristics of pseudo blast waves forming in a shock tube: location where the wave first forms, peak over-pressure, decay time and impulse. The approach is based on combining the solutions of the two different types of wave interactions that arise in the shock tube after the family of rarefaction waves in the Riemann solution interacts with the closed end of the tube. The results of the analytical model are verified against numerical simulations obtained with a finite volume method. The model furnishes a rational approach to relate shock tube parameters to desired blast wave characteristics, and thus constitutes a useful tool for the design of shock tubes for blast testing.

Geometric Design Investigation of Single Screw Compressor Rotor Grooves Produced by Cylindrical Milling

2009 ◽  
Vol 131 (7) ◽  
Author(s):  
Weifeng Wu ◽  
Quanke Feng ◽  
Xiaoling Yu
Keyword(s):  
Mathematical Simulation ◽  
Surface Profile ◽  
Geometric Design ◽  
Screw Compressor ◽  
Machining Efficiency ◽  
Gas Leakage ◽  
Single Screw ◽  
Compressor Rotor ◽  
Compressed Gas ◽  
Screw Rotor

Cylindrical milling of a screw rotor groove in a single screw compressor has higher machining efficiency than turning. However, the screw groove bottom produced by the flat end of the milling cutter fails to mesh hermetically with the flat tooth tip due to the oversized clearance between them. The clearance forms two leakage paths leading to a compressed gas leakage. The shape of the path is roughly the same as that of two parallel oblate divergent nozzles in an inverse orientation. A mathematical simulation is presented for the surface profile of the screw groove bottom for a single screw compressor generated using several cylindrical milling cutters. The results contribute to improving the design of the meshing pairs in the single screw compressor.

Mathematical Simulation of Combustion of Boron Powder Gas Suspension

2021 ◽  
Vol 94 (2) ◽  
pp. 345-356
Author(s):  
A. Yu. Krainov ◽  
D. A. Krainov ◽  
K. M. Moiseeva ◽  
V. A. Poryazov ◽  
A. A. Khakimov
Keyword(s):  
Mathematical Simulation ◽  
Gas Suspension ◽  
Boron Powder

Turbulent mixing of driver and driven gases in a shock tube channel

1985 ◽  
Vol 26 (2) ◽  
pp. 271-277 ◽  
Author(s):  
R. V. Vasil'eva ◽  
A. D. Zuev ◽  
V. L. Moshkov ◽  
L. G. Tkhorik ◽  
V. A. Shingarkina
Keyword(s):  
Shock Tube ◽  
Turbulent Mixing ◽  
Tube Channel

Shock wave interaction with nanosecond transversal discharges in shock tube channel

Shock Waves ◽  
2009 ◽  
pp. 1079-1084
Author(s):  
I.A. Znamenskaya ◽  
D.A. Koroteev ◽  
D.M. Orlov ◽  
A.E. Lutsky ◽  
I.E. Ivanov
Keyword(s):  
Shock Wave ◽  
Shock Tube ◽  
Wave Interaction ◽  
Shock Wave Interaction ◽  
Tube Channel
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