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Cold flow analysis of spray angle and droplet size distribution of a pintle injector for green hypergolic propellants

Teuffel, Philipp and Werling, Lukas and Lauck, Felix and Kirchberger, Christoph (2023) Cold flow analysis of spray angle and droplet size distribution of a pintle injector for green hypergolic propellants. 10th EUCASS - 9th CEAS, 2023-07-09 - 2023-07-13, Lausanne, Schweiz. doi: 10.13009/EUCASS2023-637.

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Abstract

In this paper, the effects of spray angle and droplet size for green hypergolic propellants in an initial cold flow investigation using a pintle injector is described. Therefore, simulants were used to match the rheological properties of the propellant combination. The spray was monitored by a shadowgraph setup and measured by a droplet size measurement system. With shadowgraph measurements the spray cone angle was determined and compared to previous research literature. First insights of the influence of high viscous fluids on droplet size distribution from pintle injectors could be gained. Results indicate that the viscosity has a minor influence on the spray angle but larger impact on droplet size.

Item URL in elib:https://elib.dlr.de/198245/
Document Type:Conference or Workshop Item (Speech)
Title:Cold flow analysis of spray angle and droplet size distribution of a pintle injector for green hypergolic propellants
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Teuffel, PhilippUNSPECIFIEDhttps://orcid.org/0000-0002-6794-9806UNSPECIFIED
Werling, LukasUNSPECIFIEDhttps://orcid.org/0000-0003-4353-2931UNSPECIFIED
Lauck, FelixUNSPECIFIEDhttps://orcid.org/0000-0002-6599-0805147691833
Kirchberger, ChristophUNSPECIFIEDhttps://orcid.org/0000-0002-7574-2581147691834
Date:July 2023
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI:10.13009/EUCASS2023-637
Status:Published
Keywords:Green Propellants, Pintle Injector, Cold Flow
Event Title:10th EUCASS - 9th CEAS
Event Location:Lausanne, Schweiz
Event Type:international Conference
Event Start Date:9 July 2023
Event End Date:13 July 2023
Organizer:EUCASS - CEAS
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transportation
DLR - Research area:Raumfahrt
DLR - Program:R RP - Space Transportation
DLR - Research theme (Project):R - Agile development of advanced rocket propulsion systems
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion > Spacecraft and Orbital Propulsion
Deposited By: Teuffel, Philipp Jan
Deposited On:29 Nov 2023 08:47
Last Modified:24 Apr 2024 20:58

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