Relation between Actual Mass and Simulation Mass of Far-Field Underwater Explosion
The far-filed underwater explosive shock wave pressure and impulse is simulated by the FEM code LS-DYNA, and the simulation results are found having rapid decay characteristic through compared with the empirical results. Based on this phenomenon, the relations, whose validity is verified through a computation instance, between simulation mass and actual mass under given initial conditional is obtained by using curve fitting. Using those equations, the accuracy of LS-DYNA to simulate far-field underwater explosive can significantly be increased, thus the ability of this code to simulate far-field underwater explosion is enhanced.
Z. W. Xie et al., "Relation between Actual Mass and Simulation Mass of Far-Field Underwater Explosion", Applied Mechanics and Materials, Vol. 127, pp. 350-354, 2012