NUMERICAL SIMULATION OF TRANSONIC TWO-PHASE REACTIVE FLOW IN HIGH-LOADING EXPLOSIVE BEDS

CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 1992, Vol. 9 ›› Issue (4): 387-392.

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NUMERICAL SIMULATION OF TRANSONIC TWO-PHASE REACTIVE FLOW IN HIGH-LOADING EXPLOSIVE BEDS

Jiang Xi¹, Wang Sunyuan²

1. Depertment of Engineering Themophysics, University of Science and Technology of China, Hefei 230026, China;
2. College of Chemical Engineering, East China Institute of Technology, Nanjing 210014

Received:1992-04-02 Online:1992-12-25 Published:1992-12-25

Abstract

Abstract: The continuous medium mathematical modeling of two-dimensional unsteady transonic two-phase reactive flow of explosive particles in high-loading beds is investigated. The SIMPLE method is successfully utilized for two-dimensional numerical calculation of the Defagration-to-Degonation Transition (DDT) processes in high-loading explosive beds. Special treatment for transonic flow and derivation of pressure correction equation for compressible fluid are presented. As an example, the calculated results for non-primary-explosive detonator show that this method weakens the numerical oscillation of transonic 2D-two-phase flow more effectively.

Key words: numerical computation method, explosive, two-phase flow, transonics

Jiang Xi, Wang Sunyuan. NUMERICAL SIMULATION OF TRANSONIC TWO-PHASE REACTIVE FLOW IN HIGH-LOADING EXPLOSIVE BEDS[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 1992, 9(4): 387-392.

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NUMERICAL SIMULATION OF TRANSONIC TWO-PHASE REACTIVE FLOW IN HIGH-LOADING EXPLOSIVE BEDS

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