Characterization of a newly developed diaphragmless shock tube for the primary dynamic calibration of pressure meters

Metrologia ◽  
2020 ◽  
Vol 57 (5) ◽  
pp. 055009 ◽  
Author(s):  
A Svete ◽  
J Kutin
Keyword(s):  
Shock Tube ◽  
Dynamic Calibration ◽  
Diaphragmless Shock Tube

scholarly journals Diaphragmless shock tube for primary dynamic calibration of pressure meters

ACTA IMEKO ◽  
2020 ◽  
Vol 9 (5) ◽  
pp. 310
Author(s):  
A. Svete ◽  
J. Kutin
Keyword(s):  
Shock Tube ◽  
Input Signal ◽  
Measurement Model ◽  
Step Change ◽  
Dynamic Calibration ◽  
Shock Formation ◽  
Expanded Uncertainty ◽  
Relative Expanded Uncertainty ◽  
Pressure Step ◽  
Diaphragmless Shock Tube

In conventional shock tubes with a diaphragm many effects related to the burst of the diaphragm can influence the shock formation and thus prevent an ideal pressure step change predicted by the shock tube measurement model being generated. This paper presents a newly developed diaphragmless shock tube, in which a diaphragm is replaced with a quick-acting pneumatic valve. The developed shock tube has a capability to generate pressure steps calculable from its measurement model with a relative expanded uncertainty of less than 0.025, which can be used as the input signal in primary calibrations of pressure meters.

Investigation of vibration effect on dynamic calibration of pressure sensors based on shock tube system

Measurement ◽  
2020 ◽  
Vol 149 ◽  
pp. 107015 ◽  
Author(s):  
Kuan Diao ◽  
Zhenjian Yao ◽  
Zhongyu Wang ◽  
Xiaojun Liu ◽  
Chenchen Wang ◽  
...  
Keyword(s):  
Shock Tube ◽  
Pressure Sensors ◽  
Dynamic Calibration ◽  
Tube System ◽  
Vibration Effect

A Millimeter-wave System for The Characterization of Plasma in Shock Tube

2019 ◽  
Author(s):  
Jing Tian ◽  
Pu Tang ◽  
Bo Chen ◽  
Lutong Li ◽  
Shiwen Lei
Keyword(s):  
Shock Tube ◽  
Millimeter Wave ◽  
Wave System

Characterization of porous material and a sound suppression system using a shock tube

2016 ◽  
Vol 139 (4) ◽  
pp. 2031-2031
Author(s):  
Erica K. Good ◽  
Robert Taylor ◽  
James Luskin ◽  
Zachary Conaway
Keyword(s):  
Porous Material ◽  
Shock Tube ◽  
Suppression System ◽  
Sound Suppression

Characterization of a controlled shock wave delivered by a pneumatic table-top gas driven shock tube

2019 ◽  
Vol 90 (7) ◽  
pp. 075116 ◽  
Author(s):  
Bogumila Swietek ◽  
Maciej Skotak ◽  
Namas Chandra ◽  
Bryan J. Pfister
Keyword(s):  
Shock Wave ◽  
Shock Tube

Experimental study of toroidal shock wave focusing in a compact vertical annular diaphragmless shock tube

Shock Waves ◽  
2009 ◽  
Vol 20 (1) ◽  
pp. 1-7 ◽  
Author(s):  
S. H. R. Hosseini ◽  
Kazuyoshi Takayama
Keyword(s):  
Shock Wave ◽  
Experimental Study ◽  
Shock Tube ◽  
Wave Focusing ◽  
Diaphragmless Shock Tube ◽  
Shock Wave Focusing

Development of a Large Diameter Diaphragmless Shock Tube for Gas-Dynamic Laser Studies

2007 ◽  
Vol 566 ◽  
pp. 9-14 ◽  
Author(s):  
I. da S. Rego ◽  
K.N. Sato ◽  
S. Kugimiya ◽  
T. Aoki ◽  
Y. Miyoshi ◽  
...  
Keyword(s):  
Shock Waves ◽  
Shock Tube ◽  
Large Diameter ◽  
Gaseous Mixtures ◽  
Gas Dynamic ◽  
Diaphragmless Shock Tube ◽  
Good Accordance ◽  
Basic Characteristics ◽  
And Performance

This paper reports on the design and performance of a large diameter diaphragmless shock tube that has been recently developed in order to experimentally study various basic characteristics of the gas-dynamic laser (GDL). The main engineering element of the shock tube is a diaphragm-like sliding piston (in place of a rupturing diaphragm) by which normal shock waves are formed. The role of such a structure in generating repeatable shock waves is discussed. The shock tube performs in good accordance with the simple shock tube theory, as has been verified so far by experiments with some conventional lasing gases (gaseous mixtures of CO2 and N2 and those diluted with an excess of He) at shock wave Mach numbers ranging from 1 to 5. Recent results of the stagnation conditions achieved in the shock tube with application to GDL experiments are included as well.

Destruction of mouse lymphoma cells with high pressure pulses generated by a diaphragmless shock tube

Shock Waves ◽  
1995 ◽  
Vol 5 (1-2) ◽  
pp. 19-23 ◽  
Author(s):  
Tomohide Hosokawa ◽  
Manabu Yamamoto ◽  
Koji Teshima
Keyword(s):  
High Pressure ◽  
Shock Tube ◽  
Lymphoma Cells ◽  
Diaphragmless Shock Tube ◽  
Mouse Lymphoma Cells ◽  
Pressure Pulses ◽  
Mouse Lymphoma

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).

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