空間碎片超高速碰撞數(shù)值分析
Numerical analysis of space debris hypervelocity impacts
-
摘要: 采用光滑粒子流體動力學 (SPH) 方法對空間碎片超高速碰撞問題作了模擬分析,給出了靶孔直徑和碎片云寬度隨碰撞速度的變化、累積碎片分布、碎片云無量綱向前總動量隨膨脹距離的變化、碎片云前端速度的變化規(guī)律以及碎片云速度矢量等。Abstract: In this paper, space debris hypervelocity impacts are simulated by the smoothed particle hydrodynamics(SPH) method. The variations of the diameter of holes, the debris clouds width, the cumulative percentage of fragments, the dimensionless momentum, the residual velocity and the velocity vectors of debris clouds are discussed.