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Burning surfaces evolution in solid propellants: a numerical model
journal contribution
posted on 2009-05-21, 15:33 authored by Joanna SzmelterJoanna Szmelter, P. OrtizA methodology for the solution of the internal physics of solid propellant rocket motors is described. The problem involves the simulation of a burning surface - a dynamically changing interface between the solid propellant and combustion gas phases. Burning surfaces can have complex shapes that change in time according to the solid chemistry and deformation, and according to gas parameters. The key element of the proposed model is the development of a new technique to conform the computational mesh to the interface. The paper documents mesh handling and solution procedures suitable for axisymmetric applications. The approach is to treat the problem in a uniform manner for solid and gas phases as a flow with moving sources. Unstructured, dynamically adjusting meshes are employed in the same way for both phases. This paper presents two specific test cases, with non-deforming solids, for which a comparison with theoretical results is possible.
History
School
- Mechanical, Electrical and Manufacturing Engineering
Citation
SZMELTER, J. and ORTIZ, P., 2003. Burning surfaces evolution in solid propellants: a numerical model. Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 221(3), pp. 429-439.Publisher
Professional Engineering Publishing / © IMECHEVersion
- VoR (Version of Record)
Publication date
2007Notes
This is an article from the journal, Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering [© IMechE ]. It is also available at: http://dx.doi.org/10.1243/09544100JAERO102ISSN
0954-4100Language
- en