Numerical Simulation Analysis of Overpressure Distribution of Free Field Explosion Strong Shock Wave
The strong shock wave environment is an important factor that needs to be considered in aircraft flight safety design and identification.The evolution law of strong shock wave of point explosion in near-earth free field is simulated by numerical simulation method,and the temporal and spatial distribution of shock wave overpressure is analyzed.The research results indicate that the high pressure area of shock wave overpressure is mainly concentrated in the first and second wavefronts,and the spatial distribution behind the wave fronts is relatively complex.The peak overpressure in the same plumb direction appears at the ground position.As the plumb height and horizontal distance of the monitoring point increase,the peak overpressure shows a significant attenuation.The numerical simulation results can provide research input and basic data for the safety design and identification of aircraft under the influence of strong shock wave overpressure.
strong shock waveoverpressuretemporal and spatial distributionCFDnumerical simulation
NETL
NSTL
万方数据
维普
