Unsteady Pressure Oscillations of Liquefied Paraffin Wax Combustion in Hybrid Rocket

Hyun, Wonjeong; Lee, Changjin

doi:10.5139/jksas.2022.50.5.339

JKSAS

2022

DOI: 10.5139/jksas.2022.50.5.339

|View full text |Cite

Unsteady Pressure Oscillations of Liquefied Paraffin Wax Combustion in Hybrid Rocket

Wonjeong Hyun¹,

Changjin Lee²

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2023

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Model for Combustion Instability in Hybrid Rocket Engines Burning Liquefying Fuels

Gallo

Carmicino

2023

AIAA Journal

View full text Add to dashboard Cite

Starting from the data measured in several static firings of two laboratory-scale hybrid rocket engines of different sizes burning gaseous oxygen with either a liquefying fuel or a pyrolyzing polymer, a mechanism for the combustion instability observed only with liquefying fuel is suggested. With the latter type of fuels, regression rate is increased for the formation of an unstable liquid layer on the grain surface, for which liquid fuel structures are entrained into the gas stream and burn, upon vaporization and mixing, far from the surface. Based on this circumstance, the hypothesis of a time delay to burn, with the resulting effect of triggering longitudinal acoustic modes of the system, is formulated. A simplified analytical acoustic model of a series of interconnected ducts with different cross sections and gas properties is preliminarily addressed, which allowed demonstrating the acoustic nature of the main pressure oscillation peaks measured in three firing tests along with the influence of the oxygen-feeding line on the system acoustics. Finally, by leveraging an existing acoustic model of the hybrid rocket combustion chamber including the effects of cross-sectional discontinuities and distributed fuel mass addition and combustion, the linear stability of the system is analyzed, whose results are apt to reproduce the experimental findings.

show abstract

Model for Combustion Instability in Hybrid Rocket Engines Burning Liquefying Fuels

Gallo

Carmicino

2023

AIAA Journal

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Unsteady Pressure Oscillations of Liquefied Paraffin Wax Combustion in Hybrid Rocket

Cited by 1 publication

References 0 publications

Model for Combustion Instability in Hybrid Rocket Engines Burning Liquefying Fuels

Model for Combustion Instability in Hybrid Rocket Engines Burning Liquefying Fuels

Contact Info

Product

Resources

About