In SPH, objects are represented by a collection of spherical particles whose evolution is tracked as a function of time. The SPH method follows the history of each particle as it moves in space, making it well suited to problems involving deformation and debris ejection. Accomplishments - Serial and parallel versions of the SPH code were ported onto the team s cluster of 16 DEC Alpha nodes. Testing was completed to ensure that the simulations reproduced results obtained by other SPH codes and those expected for idealized cases. Comparison of simulations completed at several numerical resolutions indicates that the resolutions obtainable by the SwRI model are sufficiently high to provide convergence of numerical results.
Arrows show velocity magnitudes.
Arrows indicate velocity magnitudes. Note that there are still residual waves within the planet as a result of the impact event.