Simulation Research Of Explosion And Shock

Along with the rapid development of computer technology, major safety evaluation on burning, explosion and gas leakage accident, all countries in the world,on the basis of experience calculation formula of traditional evaluation technology, turn to the computer simulation calculation based on the evaluation of digital technology development. Digital security evaluation technique is mainly simulating the process of the accident by digital calculation method , and giving its influence and degree of harm on the basis of the comprehensive analysis and evaluation.Compared with the traditional safety evaluation technology, using computer digital security evaluation technique for further improving the safety management and the level of safety control can provide more scientific basis.The Produce mechanism and destructive effect of physical explosion of three matter, including gaseity, liquid and gas-liquid, were analyzed in this paper. Based on comprehensive analysis and judgement on Running Time and complexity of explosion, reasonable suppose was set. By using theoretical research of interrelated fields, mathematical model was built and the energy produced in explosion was count. The harm scope of shock wave was gained by failure criterion. In chemical explosion aspect, explosion mechanism, process and destructive effect of steam cloud were researched. Mathematical model of steam cloud explosion was get by analysis and summary from different angles, besides, different harm radiuses of steam cloud explosion were deduced by overpressure standard of shock wave.Based on mathematical model get by analyzed and deduced, numerical simulation on explosion process and consequences was done by VC++, a object-oriented visual programming, and the harm scope of explosion was gained, providing necessary reference data for accident prediction, design of safety production and safety evaluation.The simulation program was used in practical production surroundings and accident analysis and investigation. The result was in accordance with practical data by conducting simulation experiment for system.