Results 61 to 70 of about 135 (129)

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

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

Optimization of an high-pressure turbine vane for pressure gain combustion cycles through convolutional neural network

Energy and AI
Rotating Detonation Engine (RDE) represents a pioneering technology in the propulsive and energy production fields, although the coupling with transonic High-Pressure Turbine (HPT) stages is challenging.
Giovanni Labrini, Rosario Nastasi, Simone Salvadori, Daniela Anna Misul   +3 more
doaj   +1 more source

Influence of fuel inhomogeneity on detonation wave propagation in a rotating detonation combustor

Shock Waves
AbstractRotating detonation combustor (RDC) is a form of pressure gain combustion, which is thermodynamically more efficient than the traditional constant-pressure combustors. In most RDCs, the fuel–air mixture is not perfectly premixed and results in inhomogeneous mixing within the domain.
P. Raj, J. Meadows
openaire   +2 more sources

Experimental study on the propagation characteristics of the rotating detonation wave of a small-scale rotating detonation engine

Journal of Mechanical Engineering and Sciences
Detonation combustion modes offer potential benefit over deflagration-based combustion due to rapid heat release and pressure-gain characteristics.
Mohd Fahmi Md Salleh, Mazlan Abdul Wahid, Hussein A. Mohammed, Natrah Kamaruzaman, Umar Ikhwan Mohd Rozaiddin, Ahmad Dairobi Ghazali   +5 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

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

Outflow Boundary Conditions for Turbine-Integrated Rotating Detonation Combustors

Applied Sciences
This study examines outflow boundary conditions (BCs) in computational fluid dynamics (CFD) simulations of a transition duct with and without guide vanes that converts supersonic flow exiting a rotating detonation combustor (RDC) to subsonic flow to ...
Tsung-Ming Hsieh, K. Mark Bryden, Richard P. Dalton, John Crane, Tom I-P. Shih   +4 more
doaj   +1 more source

Characterization and predictive modeling of intake blockage in rotating detonation combustor

Case Studies in Thermal Engineering
Jinhui Kang, Feilong Song, Xin Chen, WU Yun, ZHANG Dengcheng, Xiaopeng Sun, Jiaojiao Wang, Zhao Yang   +7 more
openaire   +1 more source

Experimental study of cooling solution for rotating detonation combustors

Improving the efficiency of gas turbines is of paramount importance. One promising approach is the implementation of Pressure Gain Combustion (PGC) technologies, among which the Rotating Detonation Combustor (RDC) has attracted significant attention. However, numerous challenges impede its integration into gas turbines, and the thermal management of ...
openaire   +1 more source