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| Simulation on the Blast Load Inside the Explosively Drived Shock Tube |
| Received:March 27, 2021 Revised:April 10, 2021 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2021.05.004 |
| KeyWord:shock wave explosion shock tube propagation property |
| Author | Institution |
| ZHANG Jun |
Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang , China |
| HUANG Han-jun |
Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang , China |
| WANG Jun-ping |
Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang , China |
| MAO Yong-jian |
Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang , China |
| WANG Peng |
Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang , China |
| PENF Pai |
Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang , China |
| YUE Xiao-hong |
Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang , China |
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| Abstract: |
| The paper aims to establish the engineering prediction method and guide the blast load design of the explosive test among the pipe. The multi-phase flow numerical model of explosion was constructed, and the propagation of shock wave was studied in the pipe. The relationship between shock wave parameters, quantity of explosion and propagation distance was given. The characteristic model of shock wave parameter was established based on the existing prediction equation. The plane shock wave was gradually generated after the propagation for a certain distance along the pipeline. With the increase of the propagation distance, the peak overpressure of the plane wave gradually decreased and the duration of positive pressure increased. The plane shock wave with higher peak overpressure could be obtained at the same distance by increasing the amount of explosion. The existing prediction model was also suitable for the current circle tube. The presented prediction method of shock wave parameters can be applied to guide the load design and test debugging of explosion in the shock tube. |
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