Computer Science – Numerical Analysis
Scientific paper
Dec 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994p%26ss...42.1053b&link_type=abstract
Planetary and Space Science (ISSN 0032-0633), vol. 42, no. 12, p. 1053-1066
Computer Science
Numerical Analysis
16
Computerized Simulation, Distortion, Ejecta, Fracturing, Hydrodynamics, Hypervelocity Impact, Size Distribution, Velocity Distribution, Asteroids, Basalt, Cratering, Finite Difference Theory, Mortars (Material), Numerical Analysis, Solar System Evolution
Scientific paper
Numerical simulations have been used to study high velocity two-body impacts. In this paper, a two-dimensional Largrangian finite difference hydro-code and a three-dimensional smooth particle hydro-code (SPH) are described and initial results reported. These codes can be, and have been, used to make specific predictions about particular objects in our solar system. But more significantly, they allow us to explore a broad range of collisional events. Certain parameters (size, time) can be studied only over a very restricted range within the laboratory; other parameters (initial spin, low gravity, exotic structure or composition) are difficult to study at all experimentally. The outcomes of numerical simulations lead to a more general and accurate understanding of impacts in their many forms.
Asphaug Erik
Benz Willy
Ryan Eileen V.
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