Results 61 to 70 of about 1,135 (238)

Lean ammonia-fueled engine operation enabled by hydrogen-assisted turbulent jet ignition

Frontiers in Mechanical Engineering
Anhydrous ammonia (NH3) use in internal combustion engines represents a zero-carbon energy solution that is fully sustainable if NH3 is generated renewably.
Shawn A. Reggeti, William F. Northrop
doaj   +1 more source

Decadal Changes of UV Aerosol Optical Depth in Hobart, Australia Measured With a Brewer MKIII: Relationship to Bushfire Events and Climate Indices

International Journal of Climatology, EarlyView.
Monthly average aerosol optical depth at 320 nm obtained with a Brewer MKIII spectrophotometer for Hobart, Australia (42.8806° S, 147.3250° E) over a 21‐year period. There is a linear trend of 15.4% per decade. There are 9 months when the average aerosol optical depth exceeds twice the monthly standard deviation.
Manuel Nuñez, Antonio Serrano, Peter Love, Nels Larson   +3 more
wiley   +1 more source

Numerical Study of Unsteady Properties of Ethylene/Air Turbulent Jet Diffusion Flame with Detached Eddy Simulation

, 2016
In this paper, unsteady process of ignition and combustion of turbulent plane-jet diffusion flame of ethylene/air is numerically simulated with detached eddy simulation (DES) and a reduced kinetic mechanism of ethylene.
Zhong, FQ (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China., 张新宇, Ma SG, 仲峰泉   +3 more
core   +1 more source

NTECARS: A Nonthermal Equilibrium CARS Spectra Fitting Code

Journal of Raman Spectroscopy, EarlyView.
We present NTECARS, an open‐source code written in Julia for the calculation and fitting of CARS spectra under nonequilibrium conditions. Rovibrational distributions can be flexibly modeled and fitted for different use cases. The code currently implements CO2$$ \mathrm{C}{\mathrm{O}}_2 $$ and N2$$ {\mathrm{N}}_2 $$ molecules and is validated under ...
Christian A. Busch, Uwe Czarnetzki
wiley   +1 more source

Advanced Optical and 3D Reconstruction Diagnostics for Combustion and Fluids Research [PDF]

, 2012
Imaging based optical diagnostics have played an important role in combustion and fluids studies. However, most imaging techniques are two dimensional.
Wang, Qian
core  

Actuation Strategies for Underwater Jet‐Propelled Soft Robots

Journal of Field Robotics, EarlyView.
ABSTRACT This review article examines jet‐propulsion mechanisms in underwater soft robotic systems, focusing exclusively on physically fabricated and experimentally validated robots. Covering research published from 2013 to 2025, this study classifies and evaluates jet‐propulsion robots based on their actuation mechanisms.
Angel Kitone, Mohammed Anteet, Pawandeep S. Matharu, Yara Almubarak   +3 more
wiley   +1 more source

On the features of diffusion combustion of hydrogen microjets [PDF]

E3S Web of Conferences
This paper presents the results of an experimental investigation of the diffusion combustion scenario of a round hydrogen microjet flowing from a cylindrical thin-walled micronozzle with a diameter of 200 μm when ignited near and at any distance from the
Tambovtsev Alexander, Kozlov Victor, Litvinenko Yuriy, Pavlenko Alexander, Shmakov Andrey   +4 more
doaj   +1 more source

Perfluorohexanone for Clean Fire Suppression: Mechanisms, System Design, Applications, and Future Directions

Safety Science and Technology, EarlyView.
Driven by halon and high GWP agent phase out, perfluorohexanone is increasingly deployed in enclosures such as data centers, marine machinery spaces, and industrial process lines. This review summarizes application performance, discharge and distribution design, material compatibility, and byproduct control and maps practical gaps for large volume and ...
Zhilei Yu, Haibin Dong, Yanfeng Sheng, Xuelei Xian, Dehua Zhang, Feiran Li, Liang Liu, Junchao Zhao, Heping Zhang   +8 more
wiley   +1 more source

Large-Eddy Simulation of combustion instabilities in a variable-length combustor. [PDF]

, 2013
This article presents a simulation of a model rocket combustor with continuously variable acoustic properties thanks to a variable-length injector tube. Fully compressible Large-Eddy Simulations are conducted using the AVBP code.
Garby, Romain, Laurent Selle, Thierry Poinsot, Romain Garby, Selle, Laurent, Poinsot, Thierry   +5 more
core   +1 more source

Transcritical real-fluid effects on dual-fuel combustion of methane and n-dodecane

Applications in Energy and Combustion Science
A comprehensive set of accurate physical models and numerical simulation methods for transcritical dual fuel combustion systems is presented. The method combines multiphase real-fluid physical properties modeling, flamelet-based chemistry reduction, and ...
Mohamad Fathi, Dirk Roekaerts, Stefan Hickel   +2 more
doaj   +1 more source