Coupled Fluid-structure 3-d Solid Rocket Motor Simulations
نویسندگان
چکیده
* Technical Program Manager † Visiting Scholar ‡ Research Scientist § Associate Professor of Civil and Environmental Engineering, University of Illinois at Urbana Copyright 2001 by Center for Simulation of Advanced Rockets. Published by the American Institute of Aeronautics and Astronautics, Inc., with permission. Abstract We describe our numerical method for threedimensional simulations of solid rocket motors in which the internal gas dynamics, the combustion of the propellant, and the structural response are fully coupled. The combustion zone is treated as a thin layer using appropriate jump conditions, and the regression rate is determined using a nonlinear dynamic combustion model. An Arbitrary LagrangianEulerian formulation is used in the gas dynamics and structural mechanics modules to follow the regression of the propellant. We demonstrate the parallel scalability of our ALE implementation and its ability to handle significant burn back of the propellant on a model problem with a very high burn rate.
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