Proceedings ArticleDOI
Integrated model of a composite propellant rocket
Francesco Miccio
- Vol. 1790, Iss: 1, pp 110004
TLDR
In this article, the combustion of composite solid propellants was investigated and an available numerical model was improved for taking into account the change of pressure, when the process occurs in a confined environment, as inside a rocket.Abstract:
The combustion of composite solid propellants was investigated and an available numerical model was improved for taking into account the change of pressure, when the process occurs in a confined environment, as inside a rocket. The pressure increase upon ignition is correctly described by the improved model for both sandwich and dispersed particles propellants. In the latter case, self-induced fluctuations in the pressure and in all other computed variables occur, as consequence of the periodic rise and depletion of oxidizer particles from the binder matrix. The comparison with the results of the constant pressure model shows a different fluctuating profile of gas velocity, with a possible second order effect induced by the pressure fluctuations.read more
References
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Journal ArticleDOI
A model of composite solid-propellant combustion based on multiple flames
TL;DR: In this paper, a model describing the combustion of ammonium perchlorate (AP) composite propellants has been developed based on a flame structure surrounding individual oxidizer crystals; the relationship between crystals and the binder matrix was evaluated statistically.
Journal ArticleDOI
A Model of Composite Propellant Combustion Including Surface Heterogeneity and Heat Generation
TL;DR: In this paper, the surface heterogeneity of a composite propellant is incorporated in a model of the propellant combustion process, explicitly including the oxidizer particle size distribution, and expressions for the mean, one-dimensional, propellant surface and flame temperatures are derived assuming planar regions of heat generation.
Journal ArticleDOI
A model for solid propellant combustion
TL;DR: In this paper, a model is developed to describe the combustion characteristics of composite solid propellants, and a generalized flame standoff distance has been developed based on a modified Burke-Schumann diffusion flame analysis.
Journal ArticleDOI
An improved model for the combustion of AP composite propellants
Norman S. Cohen,Leon D. Strand +1 more
TL;DR: In this paper, several improvements in the Beckstead-Derr-Price model of steady-state burning of AP composite solid propellants are presented, including an analysis of the sharing of primary diffusion flame energy and a correction in treating the binder regression rate.
Journal ArticleDOI
Modeling of Heterogeneous Propellant Combustion: A Survey
TL;DR: In this paper, the authors provide a detailed discussion of relevant work on the multidimensional computational simulation of heterogeneous solid propellant combustion, focusing on composite solid propellants and plastic-bonded explosives.