A review towards the design optimization of high performance additively manufactured rotating detonation rocket engine injectors

TW Teasley, CS Protz, AP Larkey, BB Williams… - AIAA Propulsion and …, 2021 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2021-3655. vid Rotating Detonation
Rocket Engines (RDRE) have been marketed primarily for their higher specific impulse …

[HTML][HTML] Early detection of thermoacoustic instabilities in a cryogenic rocket thrust chamber using combustion noise features and machine learning

G Waxenegger-Wilfing, U Sengupta, J Martin… - … Journal of Nonlinear …, 2021 - pubs.aip.org
We present a data-driven method for the early detection of thermoacoustic instabilities.
Recurrence quantification analysis is used to calculate characteristic combustion features …

Impact of shear-coaxial injector hydrodynamics on high-frequency combustion instabilities in a representative cryogenic rocket engine

W Armbruster, J Hardi… - International Journal of …, 2022 - journals.sagepub.com
The excitation mechanism of a thermoacoustic instability in a 42-element research rocket
thrust chamber with representative operating conditions with respect to European cryogenic …

[HTML][HTML] Flame characteristics of a high-pressure LOX/H2 rocket combustor with large optical access

J Martin, W Armbruster, R Stützer, S General… - Case Studies in Thermal …, 2021 - Elsevier
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 …

Experimental and numerical investigation of transverse combustion instability in a rectangle multi-injector rocket combustor

Y Ren, K Guo, S Feng, Y Tong, W Lin, W Nie - Acta Astronautica, 2023 - Elsevier
Rocket engines are prone to suffer from transverse combustion instabilities, manifesting as
periodic oscillations in pressure and heat release rate. Self-excited transverse instabilities in …

Analysis of self-excited transverse combustion instability in a rectangular model rocket combustor

K Guo, Y Ren, Y Tong, W Lin, W Nie - Physics of Fluids, 2022 - pubs.aip.org
A methane/oxygen mixture is considered to be an appropriate propellant for many future
rocket engines due to its practicality and low cost. To better understand the combustion …

Experimental and modeling analysis of the transient spray characteristics of cyclopentane at sub-and transcritical conditions using a machine learning approach

T Jeyaseelan, M Son, T Sander, L Zigan - Physics of Fluids, 2023 - pubs.aip.org
Although fuel spray parameters, such as spray cone angle and penetration length, are
crucial for developing high-efficiency and high-performance combustion engines, general …

The dynamics of non-premixed flames subjected to a transverse acoustic mode

D Brouzet, S You, MA Plascencia, M Roa, M Ihme - Combustion and Flame, 2022 - Elsevier
A non-premixed methane/air flame under a transverse acoustic mode is studied by
combining theoretical analysis and numerical simulations to understand the acoustic and …

Experimental investigation on effects of injection distribution on combustion instability in a model rocket combustor

K Guo, L Ni, Y Ren, W Lin, Y Tong, W Nie - Physics of Fluids, 2022 - pubs.aip.org
Self-excited combustion instabilities of transverse modes were experimentally investigated
in a rectangular multi-injector model combustor, operating with the bipropellants O 2/CH 4 …

[HTML][HTML] The acoustics of short circular holes with reattached bias flow

P Brokof, J Guzman-Inigo, D Yang… - Journal of Sound and …, 2023 - Elsevier
One of the most important parameters influencing the acoustic response of holes that sustain
a low-Mach-number bias flow is their length-to-diameter ratio. For sufficiently short holes, the …