Results 121 to 130 of about 4,526 (269)

The Attenuation of a Detonation Wave by an Aircraft Engine Axial Turbine Stage [PDF]

A Constant Volume Combustion Cycle Engine concept consisting of a Pulse Detonation Combustor (PDC) followed by a conventional axial turbine was simulated numerically to determine the attenuation and reflection of a notional PDC pulse by the turbine.
Envia, Edmane, Turner, Mark G., VanZante, Dale   +2 more
core   +1 more source

Performance analysis of turbocharger effect on engine in local cars [PDF]

, 2003
The performance of a gasoline-fueled internal combustion engines can be increased with the use of a turbocharger. However, the amount of performance increment for a particular engine should be studied so that the advantages and drawbacks of turbocharging
Abdul Aziz, Azhar, Mohd. Noor, Alias, Rajoo, Srithar   +2 more
core  

Velocity Structure and Variability of [O III] Emission in Black Hole Host Globular Cluster RZ2109

, 2011
We present a multi-facility study of the optical spectrum of the extragalactic globular cluster RZ2109, which hosts a bright black hole X-ray source. The optical spectrum of RZ2109 shows strong and very broad [O III]\lambda \lambda 4959,5007 emission in ...
Kundu, Arunav, Maccarone, Thomas J., Rhode, Katherine L., Salzer, John J., Steele, Matthew M., Zepf, Stephen E.   +5 more
core   +1 more source

Dynamic tensile strength and fracture evolution of characteristic shale with bedding and hole using linear regression theory

Deep Underground Science and Engineering, EarlyView.
The spiral conical perforations generated during methane in situ explosion fracturing operations lead to tensile fracture propagation in shale reservoirs being governed by the combined effects of impact pressure, bedding, and aperture under explosive loading. Using multiple regression analysis and digital image correlation technology, the mechanisms of
Yabo Chai, Ning Luo, Jianan Zhou, Haohao Zhang, Penglong Li, Yu Wang, Cheng Zhai, Tianran Ma   +7 more
wiley   +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

NOx formation processes in rotating detonation engines

Frontiers in Aerospace Engineering
High-fidelity simulations of RDEs with H2-Air-NOx chemistry are employed to study NOx emissions in such devices. Discrete injection of gaseous hydrogen fuel and continuous injection of air oxidizer is used at various mass flow rate conditions in several 3D RDE simulations to understand resulting NOx production behaviors.
Caleb Van Beck, Venkat Raman
openaire   +2 more sources

Controlled Nanoarchitecture of Aligned Electrospinning Fiber Composite Electrolyte Based on Plant and Animal Biopolymers for Safe Na‐Ion Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Aligned Electrospun Composite Electrolyte. The resurgence of solid‐state Na+ battery, sustained through lithium deficiency and mounting costs, offers an auspicious alternative to solid‐state Li+ battery. This study introduces a nanoarchitectural approach that integrates electrospinning with a simple solution casting technique to develop a mechanically ...
Md. Mehadi Hassan, Brett Conners, Mojtaba Ebrahimian Mashhadi, Jinguang Hu, Xia Li, Qingye Lu   +5 more
wiley   +1 more source

Review on the fundamentals and recent developments in rotating detonation engines experimental and numerical setups

Propulsion and Power Research
Rotating detonation engines (RDE) offer a promising leap in thermal efficiency compared to conventional Brayton-based reaction engines. Over the past half-century, RDE technology has garnered increasing interest, particularly in the last two decades with
O. Venegas, C. Hernández, C. Fernández
doaj   +1 more source

Scour‐Conditioned Seismic Fragility Analysis of Monopile‐Supported Offshore Wind Turbines

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Monopile‐supported offshore wind turbines (MS‐OWTs) are increasingly deployed in seismic coastal regions, where they face compound risks from earthquake loading and seabed scour. While past studies have addressed these hazards separately, seismic fragility under evolving scour conditions remains insufficiently understood. This study introduces
Francisco Pinto, Rodrigo Astroza, Felipe Vicencio, Raffaele De Risi   +3 more
wiley   +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