Study on Numerical Calculation of Liquid Propellant Blast Shock Wave and Experiment Error Analysis
The accurate calculation of the explosion equivalent needs to be used in the accurate calculation of the damage consequence of liquid propellant blast.The experimental measurement has the disadvantages of high cost and high risk.Numerical calculation is an important method to study the harmfulness of blast wave, because of its low cost, rapidity and strong repeatability.According to the Blasting Similarity Theory, LS-DYNA is used to calculate the open space N204/UDMH blast model.The propagation law of the blast wave of liquid propellant in the open air is studied.Through the comparative analysis between simulation results and experiment results, the causes of the experimental errors are summarized as the height of the measuring point, the reinforcement of the measuring device and the inhomogeneous mixing of the propellant, with some suggestions given to provide reference for the improvement of the experiment accuracy.
blast shock wavenumerical calculationpropagation lawexperimental program
NETL
NSTL
万方数据
维普
