Results 81 to 90 of about 25,136 (103)
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Diaphragmless shock tube with multiple air-operated valves
Experiments in Fluids, 2022Kento Inokuma +3 more
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A New-Conception, Electromagnetically Controlled, Diaphragmless Shock Tube
Volume 1: Turbo Expo 2003, 2003A new conception, electro-magnetically controlled, diaphragmless shock tube was realized and tested in the laboratories of University of Florence. A piston separates the co-axial driver and driven sections. The piston is kept in position by a force of an electromagnet acting on an iron disc linked to its rod. In order to obtain very short opening time,
FERRARA, GIOVANNI +2 more
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Shock Waves, 2009
The paper reports results of experiments regarding toroidal shock wave focusing in a vertical shock tube as a part of a series of converging shock wave studies. This compact vertical shock tube was designed to achieve a high degree of reproducibility with minimum shock formation distance by adopting a diaphragmless operating system.
S H R Hosseini
exaly +2 more sources
The paper reports results of experiments regarding toroidal shock wave focusing in a vertical shock tube as a part of a series of converging shock wave studies. This compact vertical shock tube was designed to achieve a high degree of reproducibility with minimum shock formation distance by adopting a diaphragmless operating system.
S H R Hosseini
exaly +2 more sources
A new, friction controlled, piston actuated diaphragmless shock tube driver
Shock Waves, 1999A new friction operated single piston shock tube driver design that is capable of generating shock waves of Mach number 1.1 to 2 is presented. By using different test gases and evacuating the driven section Mach 5 shock waves can easily be produced. The driver is efficient with shock wave Mach numbers within 9% of that predicted by ideal shock tube ...
O.E. Kosing, F.J. Barbosa, B.W. Skews
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Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 2011
The use of high-velocity sheet-forming techniques where the strain rates are in excess of 102/s can help us solve many problems that are difficult to overcome with traditional metal-forming techniques. In this investigation, thin metallic plates/foils were subjected to shock wave loading in the newly developed diaphragmless shock tube.
S R Nagaraja, J K Prasad, G Jagadeesh
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The use of high-velocity sheet-forming techniques where the strain rates are in excess of 102/s can help us solve many problems that are difficult to overcome with traditional metal-forming techniques. In this investigation, thin metallic plates/foils were subjected to shock wave loading in the newly developed diaphragmless shock tube.
S R Nagaraja, J K Prasad, G Jagadeesh
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Rapid Opening Valve Assisted by Magnetic Force for a Diaphragmless Shock Tube
2015Recently, ship ballast water has become a threat to marine ecosystems-i.e., the increase in marine creatures carried in ship ballast water to other sea areas causes destruction of marine ecosystems.
A. Abe, K. Sugahara, Y. Yamada
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Preliminary Study on Diaphragmless Shock Tube for Transonic Airfoil Testing with PDI
48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition, 2010In the present study, the diaphragmless shock tube is developed for the transonic and the high-subsonic airfoil testing. The flow visualizations of the shock tube as the wind tunnel is performed by the PDI (point diffraction interferometry) technique.
Masashi Kashitani +4 more
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Improvement of a Diaphragmless Driver Section for a Small Diameter Shock Tube
2015Recently, the micro-shock waves have attracted attention of researchers in several fields of science. It is well known that the shear stress and the heat transfer between a test gas and a wall lead to significant deviations from the normal theory of a shock wave propagating in a small diameter shock tube[1][2].
T Inage
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Development of a Large Diameter Diaphragmless Shock Tube for Gas-Dynamic Laser Studies
Materials Science Forum, 2007This 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 ...
I. da S. Rego +7 more
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Shock Waves, 1995
A high pressure pulse, which was produced by a shock tube, was hit repeatedly on a pellet of mouse EL-4 T-lymphoma cells packed in a small test tube which was filled up with culture medium. The pressure pulse measured at the conical bottom of the tube had about 30 μs width and up to 8.4 MPa height depending on the driver gas pressure of the shock tube.
Tomohide Hosokawa +2 more
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A high pressure pulse, which was produced by a shock tube, was hit repeatedly on a pellet of mouse EL-4 T-lymphoma cells packed in a small test tube which was filled up with culture medium. The pressure pulse measured at the conical bottom of the tube had about 30 μs width and up to 8.4 MPa height depending on the driver gas pressure of the shock tube.
Tomohide Hosokawa +2 more
openaire +2 more sources