Results 101 to 110 of about 2,832 (254)

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

Characteristics of H2/air annular jet flames using multiple shear coaxial injectors

Journal of Fluid Science and Technology, 2014
The heat transfer characteristics for the process tubes of a cracking furnace and the combustion chamber wall of a liquid oxygen/gas hydrogen rocket engine, both of which use multiple nozzles, are very important in terms of performance and safety.
Wataru MIYAGI, Takahiro MIKI, Tsuneyoshi MATSUOKA, Susumu NODA   +3 more
doaj   +1 more source

Machine learning-based prediction of species mass fraction and flame characteristics in partially premixed turbulent jet flame [PDF]

This study uses machine learning (ML) and large eddy simulation (LES) to predict the mass fractions of species and flame characteristics in partially premixed turbulent jet flames.
Yang, Z., Xie, J., Shateri, A.
core   +1 more source

Data-driven propagation prediction of subsonic and supersonic turbulent jets by combining self-similarity analysis model and artificial neural network

Applications in Energy and Combustion Science
Previous self-similarity analysis models for turbulent jet flames (TJF) have inherent limitations in the flame tip location and velocity prediction based on experimental data.
Gang Li, Rui Yang, Haisheng Zhen, Hu Wang, Haifeng Liu, Qinglong Tang, Mingfa Yao   +6 more
doaj   +1 more source

Engineering Polymeric Membranes for CO₂ Separation: Materials, Fabrication, Challenges, and Future Perspectives

Carbon Neutralization, Volume 5, Issue 4, July 2026.
Overview of polymeric and mixed‐matrix membranes for CO₂ separation, highlighting key materials, fabrication techniques, performance challenges, and innovations supporting industrial decarbonization and sustainable development. ABSTRACT Carbon dioxide (CO₂) emissions from anthropogenic sources are major contributors to global warming and climate change,
Muhammad Mansha, Noreen Abass, Faizah Altaf, Shehzada Muhammad Sajid Jillani, Safyan Akram Khan, Shahid Ali   +5 more
wiley   +1 more source

Triple flame structure and diffusion flame stabilization

, 1994
The stabilization of diffusion ñames is studied using asymptotic techniques and numerical tools. The configuration studied corresponda to parallel streams of cold oxidizer and fuel initially separated by a splitter píate.
Poinsot, T., Vervisch, L., Liñán Martínez, Amable, Ruetsch, G., Veynante, D., Linan, A.   +5 more
core  

Development and validation of a combustion model for a fuel cell off-gas burner

, 2008
A low-emissions power generator comprising a solid oxide fuel cell coupled to a gas turbine has been developed by Rolls-Royce Fuel Cell Systems. As part of the cycle, a fraction of the unreacted fuel (the off-gas) and oxidizer streams is reacted in a ...
Collins, William Tristan
core   +1 more source

CFD Simulation of Pre-Chamber Spark-Ignition Large Bore CNG Engine: Model Development, Practical Applications, and Experimental Validation

Energies
This study develops and validates a three-dimensional CFD model for a 12 L large-bore active-type pre-chamber spark-ignition (PCSI) engine fueled by natural gas.
Soo-Jin Jeong, Seokpan Seo, Seong-Joon Moon   +2 more
doaj   +1 more source

Verification and Validation of a Low-Mach-Number Large-Eddy Simulation Code against Manufactured Solutions and Experimental Results

Energies, 2018
To investigate turbulent reacting flows, a low-Mach number large-eddy simulation (LES) code called ‘LESsCoal’ has been developed in our group. This code employs the Germano dynamic sub-grid scale (SGS) model and the steady flamelet/progress variable ...
Yingzu Liu, Kaidi Wan, Liang Li, Zhihua Wang, Kefa Cen   +4 more
doaj   +1 more source

Cost‐Effective Na4Fe3(PO4)2P2O7 Cathode Materials for Sodium‐Ion Batteries in Large‐Scale Energy Storage Applications

Small Science, Volume 6, Issue 7, July 2026.
Na4Fe3(PO4)2P2O7 (NFPP) cathodes for sodium‐ion batteries are systematically reviewed, covering crystal structure, synthesis strategies, and electrochemical properties. Key challenges, including low electronic conductivity and impurity control, are critically analyzed alongside recent modification approaches.
Qinghua Shen, Yonghong Qin, Boyi Pang, Ruilin Mai, Jin Song, Huanxin Li, Chaopeng Fu   +6 more
wiley   +1 more source