Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Wolfgang Armbruster"'
Publikováno v:
Aerospace, Vol 10, Iss 5, p 452 (2023)
To investigate a hypothesis of the orifice flow-induced instability in rocket engine thrust chambers, a single liquid oxygen (LOX) injector with an optically accessible orifice module was used for experiments, with water as a simulant for LOX. The un
Externí odkaz:
https://doaj.org/article/52b2c90f10504229abc3468fd0c8ac44
Autor:
Jan Martin, Wolfgang Armbruster, Robert Stützer, Stephan General, Bernhard Knapp, Dmitry Suslov, Justin Hardi
Publikováno v:
Case Studies in Thermal Engineering, Vol 28, Iss , Pp 101546- (2021)
Hot fire tests were performed with a newly developed single-injector research combustor featuring a large optical access (255 × 38 mm) for flame imaging. Within these tests the propellant combination of liquid oxygen and cold gaseous hydrogen (LOX/H
Externí odkaz:
https://doaj.org/article/b0d9e055c884472382b826c63486df98
Autor:
Jan Martin, Wolfgang Armbruster, Dmitry Suslov, Robert Stützer, Justin S. Hardi, Michael Oschwald
Publikováno v:
Aerospace, Vol 9, Iss 8, p 410 (2022)
Hot-fire tests were performed with a single-injector research combustor featuring a large optical access (255 × 38 mm) for flame imaging. These tests were conducted with the propellant combination of liquid oxygen and compressed natural gas (LOX/CNG
Externí odkaz:
https://doaj.org/article/e1ae7ad5ac244543a44bb070ffbfbd35
Autor:
Saskia Windisch, Loreen Sommermann, Doreen Babin, Soumitra Paul Chowdhury, Rita Grosch, Narges Moradtalab, Frank Walker, Birgit Höglinger, Abbas El-Hasan, Wolfgang Armbruster, Joseph Nesme, Søren Johannes Sørensen, Ingo Schellenberg, Jörg Geistlinger, Kornelia Smalla, Michael Rothballer, Uwe Ludewig, Günter Neumann
Publikováno v:
Frontiers in Microbiology, Vol 11 (2021)
Fertilization management can affect plant performance and soil microbiota, involving still poorly understood rhizosphere interactions. We hypothesized that fertilization practice exerts specific effects on rhizodeposition with consequences for recrui
Externí odkaz:
https://doaj.org/article/ac77db0b971542a39d637a4829d42ce2
Publikováno v:
Global Ecology and Conservation, Vol 23, Iss , Pp - (2020)
Nutrient hotspots strongly attract mammalian herbivores in nutrient-poor habitats such as savanna systems. However, little is known about their seasonal importance for mammalian herbivore species, particularly grazers. In addition, no study has fully
Externí odkaz:
https://doaj.org/article/3f88f373569740f793820d04f3e00395
Autor:
Philipp Brokof, Juan Guzmán-Iñigo, Aimee S. Morgans, Min Son, Wolfgang Armbruster, Justin S. Hardi
Injection coupling is a well-known cause of high-frequency combustion instability in hydrogen/liquid oxygen ([Formula: see text]) rocket engines. This type of instability is commonly explained by the two-way coupling between the dynamics of the combu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c9d2df2cf8ba021c0a8de9061259fbb
http://hdl.handle.net/10044/1/104990
http://hdl.handle.net/10044/1/104990
Publikováno v:
AIAA SCITECH 2023 Forum.
Autor:
Jan Martin, Wolfgang Armbruster, Robert Stützer, Dmitry Suslov, Justin Hardi, Michael Oschwald
Publikováno v:
International Journal of Spray and Combustion Dynamics. :175682772311723
Hot fire tests were performed using a single-injector research combustor featuring a large optical access window ([Formula: see text] mm) for flame visualisation. Three test campaigns were conducted with the propellant combination of liquid oxygen an
Autor:
Oschwald, Jan Martin, Wolfgang Armbruster, Dmitry Suslov, Robert Stützer, Justin S. Hardi, Michael
Publikováno v:
Aerospace; Volume 9; Issue 8; Pages: 410
Hot-fire tests were performed with a single-injector research combustor featuring a large optical access (255 × 38 mm) for flame imaging. These tests were conducted with the propellant combination of liquid oxygen and compressed natural gas (LOX/CNG
Autor:
Günther, Waxenegger-Wilfing, Ushnish, Sengupta, Jan, Martin, Wolfgang, Armbruster, Justin, Hardi, Matthew, Juniper, Michael, Oschwald
Publikováno v:
Chaos (Woodbury, N.Y.). 31(6)
We present a data-driven method for the early detection of thermoacoustic instabilities. Recurrence quantification analysis is used to calculate characteristic combustion features from short-length time series of dynamic pressure sensor data. Feature