Effects of baffle designs on damping acoustic oscillations in a solid rocket motor

L Han, J Li, D Zhao, X Gu, B Ma, N Wang - Aerospace Science and …, 2021 - Elsevier
The baffle is a practical and promising passive damping method of dissipating acoustic
energy and increasing acoustic losses in a solid rocket motor (SRM). In this study, numerical …

Numerical simulation on acoustic mode and pressure-oscillation decay in finocyl-and axil-grain combustion chambers

L Chen, Y Gao, D Wang, Q Zou, S Zhang - Aerospace Science and …, 2020 - Elsevier
Combustion instability has long been one of the severe problems suffered by solid rocket
motors (SRMs). Currently, acoustic instability is one of the most widely researched …

Analytical model for the prediction of pulsations in a cold-gas scale-model of a Solid Rocket Motor

L Hirschberg, T Schuller, J Collinet, C Schram… - Journal of Sound and …, 2018 - Elsevier
Cold gas scale model experiments (1/30) demonstrate that coupling of vortex shedding with
acoustic standing waves can produce pressure oscillations of the same level as observed in …

Model for acoustic induced aluminum combustion fluctuations in solid rocket motors

A Genot, S Gallier, T Schuller - Journal of Propulsion and Power, 2019 - arc.aiaa.org
Combustion of aluminum droplets released by the solid propellant is widely used to increase
the thrust in solid rocket motors. The combustion dynamics of the released droplet cloud in …

Sound production due to Swirl–Nozzle interaction: Model-based analysis of experiments

L Hirschberg, SJ Hulshoff, F Bake - AIAA journal, 2021 - arc.aiaa.org
Indirect noise due to the interaction of flow inhomogeneities with a choked nozzle is an
important cause of combustion instability in solid rocket motors and is believed to be …

A model for solid propellant burning fluctuations using mesoscale simulations

S Gallier, M Plaud - Acta Astronautica, 2019 - Elsevier
The combustion of composite solid propellants shows velocity fluctuations which are
expected to have marked effects on turbulence or aeroacoustic instabilities. In this work, we …

Combustion instability and pressure oscillation numerical simulation in a solid rocket motor

AD French, M Panelli, G Di Lorenzo… - 53rd AIAA/SAE/ASEE …, 2017 - arc.aiaa.org
A typical modern solid rocket motor (SRM) consists of an outer graphite epoxy filament
wound casing, a lowdensity rubber internal insulation, such as polybutadiene and an …

[HTML][HTML] Vortex nozzle interaction in solid rocket motors: A scaling law for upstream acoustic response

L Hirschberg, SJ Hulshoff, J Collinet… - The Journal of the …, 2018 - pubs.aip.org
In solid rocket motors, vortex nozzle interactions can be a source of large-amplitude
pressure pulsations. Using a two-dimensional frictionless flow model, a scaling law is …

[HTML][HTML] Pressure oscillation and suppression method of large-aspect-ratio solid rocket motors

XI Yunzhi, GAO Jingwei, WU Zeping, B ZHANG… - Chinese Journal of …, 2024 - Elsevier
A two-dimensional large eddy simulation numerical model is proposed to study the transient
vortex flow and pressure oscillation of a large-aspect-ratio solid rocket motor. The numerical …

Effect of the head cavity on pressure oscillation suppression characteristics in large solid rocket motors

Q Zhang, NF Wang, JW Li, WX Su, Y Zhang - Science China Technological …, 2015 - Springer
In order to discover the effect of head cavity on resonance damping characteristics in solid
rocket motors, large-eddy simulations with wall-adapting-local-eddy-viscosity subgrid scale …