Numerical Simulation and Experiment for Underwater Shock Wave in Newly Designed Pressure Vessel

Authors

  • M Shibuta
  • H Hamashima
  • S Itoh

DOI:

https://doi.org/10.1260/1750-9548.4.3.241

Abstract

Modern eating habits depend in large part on the development of food processing technology. Thermal treatments are often performed in the conventional food processing, but it can cause discoloration and loss of nutrients of the food by thermal processing or treatment. On the other hand, food processing using an underwater shock wave has little influence of heat and its processing time is very short, preventing the loss of nutrients. In this research optical observation experiment and the numerical simulation were performed, in order to understand and control the behavior of the underwater shock wave in the development of the processing container using an underwater shock wave for the factory and home. In this experiment a rectangular container was used to observe the behavior of the underwater shock wave. In the experiment, the shock wave was generated by using explosive on the shock wave generation side. The shock wave, which passed through the phosphor bronze and propagated from the aluminum sidewall, was observed on the processing container side. Numerical simulation of an analogous experimental model was investigated, where LS-DYNA software was used for the numerical simulation. The comparative study of the experiment and the numerical simulation was investigated. The behavior of a precursor shock wave from the device wall was able to be clarified. This result is used for development of the device in numerical simulation.

References

M.Otsuka, Syougeki Daidenryu ni yori Hasseisita Suityuusyougekiha no Seigyo to sono Oyou ni Kannsuru Kennkyu (Research on control and its application of the underwater shock wave generated by shock large current), Kumamot University (2007).

S.Itoh, Z.Liu, Y.Nadamitu, An Investigation on the Properties of Underwater Shock Waves Generated in Underwater Explosions of High Explosives, Journal of Pressure Vessel Technology, Vol.119, pp. 498-502 (1997). https://doi.org/10.1115/1.2842336

J.O. Hallquist, “LS-DYNA Theoretical Manual”, Livermore Software Technology Corporation (2006).

J.O. Hallquist, “LS-DYNA Keyword User's Manual”, Livermore Software Technology Corporation (2007).

J. W. Kury, H. C.Hornig, E. L. Lee, J. L. McDonnel, D. L. Ornellas, M.Finger, F. M. Strange and M. L. Wilkins, Metal Acceleration by Chemical Explosives, 4th Symposium on Detonation, A 109-A 120 (1965).

E. L. Lee, M.Finger and W.Collins, JWL Equation of state Coefficients for High Explosives, Lawrence Livermore Laboratory, UCID-16189 (1973). https://doi.org/10.2172/4479737

Published

2010-09-30

How to Cite

Shibuta, M., Hamashima, H. and Itoh, S. (2010) “Numerical Simulation and Experiment for Underwater Shock Wave in Newly Designed Pressure Vessel”, The International Journal of Multiphysics, 4(3), pp. 241-258. doi: 10.1260/1750-9548.4.3.241.

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