Research on Creep Constitutive and Numerical Simulation of Composite Solid Propellant

Integrated Simulation of Solid Propellant Rockets

This paper presents an overview of research activities at the Center for Simulation of Advanced Rockets (CSAR) at the University of Illinois at Urbana-Champaign. CSAR is one of five university-based research centers funded by the U. S. Department of Energy as part of the Accelerated Strategic Computing Initiative (ASCI). The purpose of ASCI is to advance the state of the art in computational si...

HTPB-Polyurethane: A Versatile Fuel Binder for Composite Solid Propellant

internal ballistic simulation of a solid propellant engine

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An improved constitutive model for the numerical simulation of semi-solid thixoforming

In order to model thixoforming processes, previous papers presented a thermo-mechanical onephase modelling. This first version of constitutive model revealed several limitations: the model could not degenerate properly to pure solid or liquid behaviour neither to free solid suspensions. The aim of this paper was to propose solutions to overcome these limitations.

Numerical Simulation on Head-On Binary Collision of Gel Propellant Droplets

Binary collision of droplets is a fundamental form of droplet interaction in the spraying flow field. In order to reveal the central collision mechanism of two gel droplets with equal diameters, an axi-symmetric form of the Navier-Stokes equations are firstly solved and the method of VOF (volume of fluid) is utilized to track the evolution of the gas-liquid free interface. Then, the numerical c...