Results 91 to 100 of about 1,472 (179)

Scale effects on rotating detonation rocket engine operation

Applications in Energy and Combustion Science
Rotating detonation rocket engines are propulsive devices employing detonation waves moving circumferentially around an annular channel that consume axially fed propellants.
Tyler Mundt, Carl Knowlen, Mitsuru Kurosaka   +2 more
doaj   +1 more source

Summary of Pressure Gain Combustion Research at NASA [PDF]

NASA has undertaken a systematic exploration of many different facets of pressure gain combustion over the last 25 years in an effort to exploit the inherent thermodynamic advantage of pressure gain combustion over the constant pressure combustion ...
Paxson, Daniel E., Perkins, H. Douglas
core   +1 more source

Learning dominant physical processes with data-driven balance models. [PDF]

Nat Commun, 2021
Callaham JL, Koch JV, Brunton BW, Kutz JN, Brunton SL.   +4 more
europepmc   +1 more source

Computational modeling of dynamic injector response in a Rotating Detonation Engine (RDE)

Applications in Energy and Combustion Science
Rotating Detonation Engines (RDEs) are a form of pressure gain combustion (PGC), offering a promising approach to increase the thermodynamic efficiency of a gas turbine combustor by utilizing a detonation-driven combustion process. In most RDEs, fuel and
Piyush Raj, Ashwin Kumar, Joseph Meadows
doaj   +1 more source

Research and Development of Hydrogen-Fueled Internal Combustion Engines in China. [PDF]

ACS Omega, 2023
Wang L, Li X, Hong C, Guo P, Guo S, Yang Z.   +5 more
europepmc   +1 more source

Numerical Analysis of the Characteristic Chemical Timescale of a C₂H₄/O₂ Non-Premixed Rotating Detonation Engine

Energies
A three-dimensional numerical investigation using ethylene–oxygen was conducted to examine the characteristics of detonation waves in a non-premixed rotating detonation engine (RDE) across three equivalence ratio conditions: fuel-lean, stoichiometric ...
Mohammed Niyasdeen Nejaamtheen, Bu-Kyeng Sung, Jeong-Yeol Choi   +2 more
doaj   +1 more source

Influence of injector configuration on secondary wave formation and propagation in a rotating detonation combustor

Applications in Energy and Combustion Science
Numerous studies of rotating detonation engines (RDEs) have noted the appearance of weaker secondary waves which travel with or counter to the primary wave system.
Michael Ullman, Venkat Raman
doaj   +1 more source

The hard start phenomena in hypergolic engines. Volume 1: Bibliography [PDF]

A bibliography of reports pertaining to the hard start phenomenon in attitude control rocket engines on Apollo spacecraft is presented. Some of the subjects discussed are; (1) combustion of hydrazine, (2) one dimensional theory of liquid fuel rocket ...
Miron, Y., Perlee, H. E.
core   +1 more source

Development of a Reduced Order Model for Turbine Blade Cooling Design

International Journal of Turbomachinery, Propulsion and Power
Rotating detonation engines (RDEs) are expected to have higher specific work and efficiency, but the high-temperature transonic flow delivered by the combustor poses relevant design and technological difficulties.
Andrea Pinardi, Noraiz Mushtaq, Paolo Gaetani   +2 more
doaj   +1 more source

Development and Characterization Testing of an Air Pulsation Valve for a Pulse Detonation Engine Supersonic Parametric Inlet Test Section [PDF]

In pulse detonation engines, the potential exists for gas pulses from the combustor to travel upstream and adversely affect the inlet performance of the engine.
Tornabene, Robert
core   +1 more source