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Modeling of Aluminum Particle Combustion in Solid Rocket Combustion Chambers

Ecker, Tobias and Karl, Sebastian and Hannemann, Klaus (2017) Modeling of Aluminum Particle Combustion in Solid Rocket Combustion Chambers. 53rd AIAA/SAE/ASEE Joint Propulsion Conference, 10.-12. Juni 2017, Atlanta, USA.

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Official URL: http://propulsionenergy.aiaa.org/

Abstract

Two phase ow is a challenging subject in the design of solid rocket motors. Not only does it impact the motor performance characteristics, but also inuences the thermal and chemical loads on the motor components. The main particulate found in hybrid and solid rocket combustion is made of aluminum. This study focuses on the continuous development of the TAU Lagrangian particle tracer, including eorts in modeling droplet evaporation, droplet breakup and condensation processes to describe the behavior of the solid particles within the combustion chamber. By combining computationally aordable models, an engineering model able to predict thermal, chemical and mechanical loads is presented. Application to a solid rocket motor engine indicates that this particular modeling approach underpredicts the combustion chamber temperature. Implementation of nucleation and subsequent condensation as a gas phase reaction resulted in chamber temperatures close to the temperature found from equilibrium combustion. While the temperature and species distribution within the chamber largely depend on the modeling of the combustion process, it is shown that the droplet breakup model has a much stronger inuence on the accurate prediction of droplet diameters in the nozzle and subsequent plume.

Item URL in elib:https://elib.dlr.de/111764/
Document Type:Conference or Workshop Item (Speech)
Additional Information:Paper DOI: https://doi.org/10.2514/6.2017-4781
Title:Modeling of Aluminum Particle Combustion in Solid Rocket Combustion Chambers
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ecker, TobiasTobias.Ecker (at) dlr.deUNSPECIFIED
Karl, Sebastiansebastian.karl (at) dlr.deUNSPECIFIED
Hannemann, Klausklaus.hannemann (at) dlr.deUNSPECIFIED
Date:2017
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Solid rocket combustion, particle, multiphase flow
Event Title:53rd AIAA/SAE/ASEE Joint Propulsion Conference
Event Location:Atlanta, USA
Event Type:international Conference
Event Dates:10.-12. Juni 2017
Organizer:AIAA Propulsion and Energy Forum
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):R - Raumfahrzeugsysteme - Anlagen u. Messtechnik
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Spacecraft, GO
Deposited By: Bachmann, Barbara
Deposited On:18 Sep 2017 15:33
Last Modified:18 Sep 2017 15:33

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