Three-dimensional thermo-mechanical simulations of heterogeneous solid propellants
Journal Article
·
· Combustion and Flame
- University of Florida, Gainesville, FL (United States); OSTI
- University of Florida, Gainesville, FL (United States)
Here in this work, we present a numerical framework that describes thermo-mechanical deformations in a burning heterogeneous solid propellant. These deformations are quasi-static at time scales associated with combustion, and the resulting thermo-mechanical formulation is discretized on a Cartesian grid using a hypoelastic law. We use a weak form of Chorin-type projection method to deal with large difference in shear modulus of the constituent materials. Extending our previous two-dimensional work, grid convergence studies for a three-dimensional propellant configuration are presented for the stress, velocity, and reference map components. Finally, simulations are carried out for a random propellant pack that is coupled to a gas phase, and we present results for the pack undergoing combustion, with and without deformations.
- Research Organization:
- University of Florida, Gainesville, FL (United States)
- Sponsoring Organization:
- Air Force Research Laboratory (AFRL); USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- NA0002378
- OSTI ID:
- 1976987
- Alternate ID(s):
- OSTI ID: 1808615
- Journal Information:
- Combustion and Flame, Journal Name: Combustion and Flame Journal Issue: C Vol. 233; ISSN 0010-2180
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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