Tell a friend
Print
Martin, Jan and Armbruster, Wolfgang and Hardi, Justin and Suslov, Dmitry (2021) Experimental Investigation of Self-Excited Combustion Instabilities in a LOX/LNG Rocket Combustor. Journal of Propulsion and Power, 37 (6). American Institute of Aeronautics and Astronautics (AIAA). doi: 10.2514/1.B38289. ISSN 0748-4658.
![[img]](https://elib.dlr.de/style/images/fileicons/application_pdf.png) |
PDF
- Published version
1MB |
Abstract
Two types of combustion instabilities were observed in a multi-injector research combustor with liquid oxygen and liquefied natural gas (LOX/LNG) propellants operating at conditions similar to an upper stage rocket engine. The first was identified as an excited tangential acoustic mode of the combustion chamber and can be explained by coupling with the LOX injectors, similar to the mechanism previously observed in tests with LOX/H2 propellants. The other type is characterized by longitudinal acoustic oscillations with peak-to-peak amplitudes of at least 40% of the mean chamber pressure. Analysis of the test data suggests that sudden upstream displacement of a lifted flame may be the trigger mechanism for the second type of instabilities.
| Item URL in elib: | https://elib.dlr.de/145843/ | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Document Type: | Article | ||||||||||||||||||||
| Title: | Experimental Investigation of Self-Excited Combustion Instabilities in a LOX/LNG Rocket Combustor | ||||||||||||||||||||
| Authors: |
| ||||||||||||||||||||
| Date: | 14 June 2021 | ||||||||||||||||||||
| Journal or Publication Title: | Journal of Propulsion and Power | ||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||
| Open Access: | Yes | ||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||
| In SCOPUS: | Yes | ||||||||||||||||||||
| In ISI Web of Science: | Yes | ||||||||||||||||||||
| Volume: | 37 | ||||||||||||||||||||
| DOI: | 10.2514/1.B38289 | ||||||||||||||||||||
| Publisher: | American Institute of Aeronautics and Astronautics (AIAA) | ||||||||||||||||||||
| ISSN: | 0748-4658 | ||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||
| Keywords: | combustion instability, liquid propellant rocket engine, liquefied natural gas, chamber pressure, propellant, combustors, band pass filter, strouhal numbers, resonance frequencies, pressure sensors | ||||||||||||||||||||
| 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 - Reusable Space Systems and Propulsion Technology | ||||||||||||||||||||
| Location: | Lampoldshausen | ||||||||||||||||||||
| Institutes and Institutions: | Institute of Space Propulsion > Rocket Propulsion Technology Institute of Space Propulsion > Rocket Engine Systems | ||||||||||||||||||||
| Deposited By: | Hanke, Michaela | ||||||||||||||||||||
| Deposited On: | 22 Nov 2021 08:36 | ||||||||||||||||||||
| Last Modified: | 05 Dec 2023 10:12 |
Repository Staff Only: item control page
