Visualization of Shock Wave by Electric Discharge

AIAA Journal ◽  
1977 ◽  
Vol 15 (5) ◽  
pp. 611-612 ◽  
Author(s):  
Takeyoshi Kimura ◽  
Masatomi Nishio ◽  
Tsutomu Fujita ◽  
Ryozo Maeno
Keyword(s):  
Shock Wave ◽  
Electric Discharge

scholarly journals ELECTRIC PULSE METHOD FOR PRODUCING A SMALL-DISPERSED PRODUCT OF COAL-WATER FUEL

2020 ◽  
Vol 17 (2) ◽  
pp. 96-99
Author(s):  
A.K. Khassenov ◽  
Keyword(s):  
Shock Wave ◽  
Electric Discharge ◽  
Coal Combustion ◽  
Granulometric Composition ◽  
Electric Pulse ◽  
Pulse Discharge ◽  
Pulse Method ◽  
Coal Fuel ◽  
Pulverized Combustion ◽  
Effective Use

One of the most pressing issues is the effective use of coal combustion in the form of water-coal fuel, which has a number of advantages over layer or pulverized combustion. Coal-water fuel has a number of economic, operational and environmental advantages. The article considers the electric pulse method as a source of obtaining a fine product of coal-water fuel. The proposed method for grinding coal is based on the use of the energy of a pulsed shock wave resulting from a spark electric discharge in a liquid. The parameters of the electric pulse discharge for obtaining the required granulometric composition of the components of coal-water fuel are determined.

scholarly journals The Basic Research for Pulverization of Rice Using Underwater Shock Wave by Electric Discharge

2011 ◽  
Vol 5 (2) ◽  
pp. 115-130 ◽  
Author(s):  
Makoto Ide ◽  
Manabu Shibuta ◽  
Naoyuki Wada ◽  
Shigeru Tanaka ◽  
Hideki Hamashima ◽  
...  
Keyword(s):  
Shock Wave ◽  
Electric Discharge ◽  
Basic Research ◽  
Underwater Shock Wave ◽  
Underwater Shock

Observation of the shock wave generated by underwater pulse electric discharge with the real time holography interferometry

2003 ◽  
Vol 2003.78 (0) ◽  
pp. _10-31_-_10-32_
Author(s):  
Masakazu TAKAHARA ◽  
Shigeyoshi HISADA ◽  
Sumio NAKAHARA ◽  
Takeyoshi FUJITA
Keyword(s):  
Shock Wave ◽  
Real Time ◽  
Electric Discharge ◽  
The Real ◽  
Pulse Electric ◽  
Pulse Electric Discharge

Research About Pulverization of Rice Using Underwater Shock Wave by Electric Discharge

2010 ◽  
Author(s):  
Makoto Ide ◽  
Seiichi Irie ◽  
Nobuyuki Matsuo ◽  
Asuka Oda ◽  
Shigeru Tanaka ◽  
...  
Keyword(s):  
Shock Wave ◽  
Electric Discharge ◽  
Food Samples ◽  
Frictional Heat ◽  
Underwater Shock Wave ◽  
Manufacturing Method ◽  
Application Techniques ◽  
Rate Improvement ◽  
Underwater Shock ◽  
Rice Powder

In recent years, it is expected that the consumption of rice powder in Japan increases for food self-support rate improvement. The consumption of enormous energy during making rice powder and loss of starch in rice by frictional heat is occurred by using the existing manufacturing method. Application techniques using underwater shock wave which is generated by high voltage electric discharge are studied in our laboratory. When some food samples are treated by underwater shock wave, following advantages are obtained, a little heat treatment, decreasing consumption of the energy, and shortening of processing time. In food processing using underwater shock wave, the spalling destruction due to propagation characteristics of shock wave and mediums, which have difference density, is used. In this study, the pressure vessel for pulverization of rice was developed, and then, intensity of pressure in vessel is measured by way of experiment, and simulated numerical analysis.

On the Forming of Metallic Parts through Electromagnetic and Electrohydraulic Processing

2006 ◽  
Vol 15-17 ◽  
pp. 655-660 ◽  
Author(s):  
Didier Priem ◽  
Surendar Marya ◽  
Guillaume Racineux
Keyword(s):  
Shock Wave ◽  
Electric Discharge ◽  
High Intensity ◽  
Static Pressure ◽  
Material Behavior ◽  
Discharge Energy ◽  
High Deformation ◽  
Deformation Work ◽  
Metallic Parts ◽  
Different Parts

Forming of metallic parts by the application of high intensity transitory magnetic pulses or shock waves is a challenge task from industrial perspectives as this offers extended scope of forming highly precise parts that result from material behavior at high deformation rates. Electromagnetic forming requires that the part must be intrinsically very conducting. The electrohydraulic forming is exempt from this material constraint as the deformation is generated by a shock wave in a fluid through electric discharge in between the electrodes. The application of a static pressure during forming is used to reduce the discharge energy for a given deformation. Work has been conducted to form different parts through these two techniques involving aluminum, copper and steels. The paper presents the technical obstacles still facing the electromagnetic techniques and gives examples of formed parts and joints in relation with microstructures.

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