Flame response of solid laminate propellant AP/HTPB to pressure perturbations

Rezaiguia, Hichem; Liu, Peijin

doi:10.1109/icmae.2016.7549532

Cited by 2 publications

(2 citation statements)

References 24 publications

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“…Despite this, a substantial amount of of historical data has been gathered over the past several decades [7,8]. The two most common methods for measuring the burn rate are with break-wires [9] or optically [8,[10][11][12][13]. To find more reliable burn rates for the AP/binder interface simplified experiments were performed, specifically sandwiched composites.…”

Section: Introductionmentioning

confidence: 99%

A diffuse interface method for solid-phase modeling of regression behavior in solid composite propellants

Kanagarajan¹,

Quinlan²,

Runnels³

2022

Preprint

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Solid composite propellants (SCPs) are ubiquitous in the field of propulsion. In order to design and control solid SCP rocket motors, it is critical to understand and accurately predict SCP regression. Regression of the burn surface is a complex process resulting from thermo-chemical-mechanical interactions, often exhibitingextreme morphological changes and topological transitions. Diffuse interface methods, such as phase field (PF), are well-suited for modeling processes of this type, and offer some distinct numerical advantages over their sharp-interface counterparts. In this work, we present a phase-field framework for modelingthe regression of SCPs with varying species and geometry. We construct the model from a thermodynamic perspective, leaving the base formulation general. A diffuse-species-interface field is employed as a mechanism for capturing complex burn chemistry in a reduced-order fashion, making it possible to model regressionfrom the solid phase only. The computational implementation, which uses block-structured adaptive mesh refinement and temporal substepping for increased performance, is briefly discussed. The model is then applied to four test cases: (i) pure AP monopropellant, (ii) AP/PBAN sandwich, (iii) AP/HTPB sandwich,and (iv) spherical AP particles packed in HTPB matrix. In all cases, reasonable quantitative agreement is observed, even when the model is applied predictively (i.e., no parameter adjustment), as in the case of (iv). The validation of the proposed PF model demonstrates its efficacy as a numerical design tool for future SCP investigation.

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Section: Introductionmentioning

confidence: 99%

A diffuse interface method for solid-phase modeling of regression behavior in solid composite propellants

Kanagarajan¹,

Quinlan²,

Runnels³

2022

Preprint

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“…Recently, Rezaiguia and Liu 26 investigated the flame behavior of solid laminate propellant, AP/HTPB, to pressure perturbations within a closed combustor. Results revealed that the acoustic wave induced modifications on the flame structure and burning surface profile.…”

Section: Introductionmentioning

confidence: 99%

Flame response of solid propellant AP/Al/HTPB to a longitudinal acoustic wave

Rezaiguia

Liu

Yang

2017

International Journal of Spray and Combustion Dynamics

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This paper is devoted to an experimental work which consists of the analysis of the flame of a small solid propellant sample, AP/Al/HTPB, subjected to a longitudinal acoustic wave. Experiments were conducted in a closed tube under two mean pressures: 1 and 2.5 MPa. The qualitative and quantitative analysis of the flame snapshots, using a microscope and a high-speed camera, revealed that the acoustic wave created at the end of the chamber by a pulser system strongly affects the flame and the combustion products dynamic above the solid propellant surface, namely, the flame and the hot products oscillate around a line perpendicular to the propellant surface. This dynamic of the hot gas disturbs the local burning rate and the regression surface profile. Thus, the thrust and the burning duration will change, therefore, the flight path of the rocket may shift and can lead to failure of the mission.

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Flame response of solid laminate propellant AP/HTPB to pressure perturbations

Cited by 2 publications

References 24 publications

A diffuse interface method for solid-phase modeling of regression behavior in solid composite propellants

A diffuse interface method for solid-phase modeling of regression behavior in solid composite propellants

Flame response of solid propellant AP/Al/HTPB to a longitudinal acoustic wave

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