Nonidealities in rotating detonation engines

V Raman, S Prakash, M Gamba - Annual Review of Fluid …, 2023 - annualreviews.org
A rotating detonation engine (RDE) is a realization of pressure-gain combustion, wherein a
traveling detonation wave confined in a chamber provides shock-based compression along …

[HTML][HTML] Laser sensors for energy systems and process industries: Perspectives and directions

A Farooq, ABS Alquaity, M Raza, EF Nasir… - Progress in Energy and …, 2022 - Elsevier
Sensors are perhaps the most important and integral components of our modern society.
With global warming and environmental pollution garnering ever-increasing attention, as …

High-bandwidth absorption-spectroscopy measurements of temperature, pressure, CO, and HO in the annulus of a rotating detonation rocket engine

GC Mathews, MG Blaisdell, AI Lemcherfi… - Applied Physics B, 2021 - Springer
The development and application of two laser-absorption-spectroscopy diagnostics capable
of performing high-bandwidth measurements of (1) temperature, pressure, and CO, and (2) …

Experimental and synthetic laser-absorption-spectroscopy measurements of temperature, pressure, and CO at 1 MHz for evaluation of post-detonation fireball models

GC Mathews, M Gomez, CJ Schwartz… - Proceedings of the …, 2023 - Elsevier
A quantum-cascade-laser-absorption-spectroscopy (QCLAS) diagnostic was used to
characterize post-detonation fireballs of RP-80 detonators via measurements of …

Extended tuning of distributed-feedback lasers in a bias-tee circuit via waveform optimization for MHz-rate absorption spectroscopy

AP Nair, NQ Minesi, C Jelloian… - Measurement …, 2022 - iopscience.iop.org
Variations in injection-current waveform are examined using diplexed radio-frequency
modulation with continuous-wave distributed-feedback (CW-DFB) lasers, with the aim to …

Numerical investigation on flow and film cooling characteristics of coolant injection in rotating detonation combustor

J Tian, Y Wang, J Zhang, X Tan - Aerospace Science and Technology, 2022 - Elsevier
The film cooling is a possible active thermal protection solution for the rotating detonation
engines. As the rotating detonation wave is of high periodic and unsteady features, the film …

Experimental validation of rotating detonation for rocket propulsion

JW Bennewitz, JR Burr, BR Bigler, RF Burke… - Scientific Reports, 2023 - nature.com
Abstract Space travel requires high-powered, efficient rocket propulsion systems for
controllable launch vehicles and safe planetary entry. Interplanetary travel will rely on …

Propagation behaviors of kerosene-fueled rotating detonation wave with varied atomizer locations

G Xu, Y Wu, C Kang, T Lei, Y Qiu, C Ding… - Aerospace Science and …, 2023 - Elsevier
In this study, we tested a rotating detonation engine (RDE) fueled by liquid kerosene. A
scheme of circumferential array atomization with an injection throat upstream of the annular …

Experimental study of H2/air rotating detonation wave propagation characteristics at low injection pressure

J Han, Q Bai, S Zhang, M Wu, S Cui, H Chen… - Aerospace Science and …, 2022 - Elsevier
H 2/air rotating detonation wave (RDW) propagation characteristics were studied under low
injection pressure. A small air mass flow rate and wide air injection ring were used to obtain …

Rotating detonation combustor performance informed through a novel megahertz-rate stagnation pressure measurement

KJ Dille, MD Frederick, CD Slabaugh, SD Heister - Physics of Fluids, 2024 - pubs.aip.org
An experimental stagnation pressure measurement technique is presented for a rotating
detonation combustor (RDC). Schlieren imaging enables rotating detonation wave passage …