Results 1 to 10 of about 1,349,018 (307)

Evaluation of isoprene nitrate chemistry in detailed chemical mechanisms [PDF]

Atmospheric Chemistry and Physics, 2022
Isoprene nitrates are important chemical species in the atmosphere which contribute to the chemical cycles that form ozone and secondary organic aerosol (SOA) with implications for climate and air quality.
A. W. Mayhew, B. H. Lee, J. A. Thornton, T. J. Bannan, J. Brean, J. R. Hopkins, J. R. Hopkins, J. D. Lee, J. D. Lee, B. S. Nelson, C. Percival, A. R. Rickard, A. R. Rickard, M. D. Shaw, M. D. Shaw, P. M. Edwards, J. F. Hamilton   +16 more
doaj   +4 more sources

Comparison of Flame Propagation Statistics Based on Direct Numerical Simulation of Simple and Detailed Chemistry. Part 2: Influence of Choice of Reaction Progress Variable

Energies, 2021
Flame propagation statistics for turbulent, statistically planar premixed flames obtained from 3D Direct Numerical Simulations using both simple and detailed chemistry have been evaluated and compared to each other.
Felix B. Keil, Marvin Amzehnhoff, Umair Ahmed, Nilanjan Chakraborty, Markus Klein   +4 more
doaj   +1 more source

Numerical Study of the Comparison of Symmetrical and Asymmetrical Eddy-Generation Scheme on the Fire Whirl Formulation and Evolution

Applied Sciences, 2020
A numerical study of the fire whirl formation under symmetrical and asymmetrical entraining configuration is presented. This work aims to assess the effect of eddy-generation configuration on the evolution of the intriguing phenomenon coupled with both ...
Cheng Wang, Anthony Chun Yin Yuen, Qing Nian Chan, Timothy Bo Yuan Chen, Ho Lung Yip, Sherman Chi-Pok Cheung, Sanghoon Kook, Guan Heng Yeoh   +7 more
doaj   +1 more source

An Investigation towards Coupling Molecular Dynamics with Computational Fluid Dynamics for Modelling Polymer Pyrolysis

Molecules, 2022
Building polymers implemented into building panels and exterior façades have been determined as the major contributor to severe fire incidents, including the 2017 Grenfell Tower fire incident.
Timothy Bo Yuan Chen, Ivan Miguel De Cachinho Cordeiro, Anthony Chun Yin Yuen, Wei Yang, Qing Nian Chan, Jin Zhang, Sherman C. P. Cheung, Guan Heng Yeoh   +7 more
doaj   +1 more source

Evaluation of Modeling Approaches for MILD Combustion Systems With Internal Recirculation

Frontiers in Mechanical Engineering, 2020
Numerical simulations employing two different modeling approaches are performed and validated against experimental results from a moderate or intense low-oxygen dilution (MILD) system with internal recirculation. The flamelet-generated manifold (FGM) and
Ruggero Amaduzzi, Ruggero Amaduzzi, Giuseppe Ceriello, Marco Ferrarotti, Marco Ferrarotti, Giancarlo Sorrentino, Alessandro Parente, Alessandro Parente   +7 more
doaj   +1 more source

Comparison of Flame Propagation Statistics Extracted from Direct Numerical Simulation Based on Simple and Detailed Chemistry—Part 1: Fundamental Flame Turbulence Interaction

Energies, 2021
In the present study, flame propagation statistics from turbulent statistically planar premixed flames obtained from simple and detailed chemistry, three-dimensional Direct Numerical Simulations, were evaluated and compared to each other.
Felix Benjamin Keil, Marvin Amzehnhoff, Umair Ahmed, Nilanjan Chakraborty, Markus Klein   +4 more
doaj   +1 more source

Description and evaluation of a detailed gas-phase chemistry scheme in the TM5-MP global chemistry transport model (r112) [PDF]

Geoscientific Model Development, 2020
This work documents and evaluates the tropospheric gas-phase chemical mechanism MOGUNTIA in the three-dimensional chemistry transport model TM5-MP.
S. Myriokefalitakis, N. Daskalakis, A. Gkouvousis, A. Gkouvousis, A. Hilboll, T. van Noije, J. E. Williams, P. Le Sager, V. Huijnen, S. Houweling, S. Houweling, T. Bergman, J. R. Nüß, M. Vrekoussis, M. Vrekoussis, M. Vrekoussis, M. Kanakidou, M. Kanakidou, M. C. Krol, M. C. Krol   +19 more
doaj   +1 more source

GUIA DETALHADO PARA MONTAGEM PRÓPRIA DE IMPRESSORAS 3D [PDF]

Química Nova, 2023
DETAILED GUIDE TO OWN ASSEMBLY OF 3D PRINTERS. In recent years, there has been an increase in the use of 3D printing for the manufacture of three-dimensional objects.
Mateus V. Pereira, Reverson F. Quero, Dosil P. de Jesus, Juliano A. Bonacin   +3 more
doaj   +1 more source

Influence of Eddy-Generation Mechanism on the Characteristic of On-Source Fire Whirl

Applied Sciences, 2019
This paper numerically examines the characterisation of fire whirl formulated under various entrainment conditions in an enclosed configuration. The numerical framework, integrating large eddy simulation and detailed chemistry, is constructed to assess ...
Cheng Wang, Anthony Chun Yin Yuen, Qing Nian Chan, Timothy Bo Yuan Chen, Qian Chen, Ruifeng Cao, Ho Lung Yip, Sanghoon Kook, Guan Heng Yeoh   +8 more
doaj   +1 more source

NOx Formation in MILD Combustion: Potential and Limitations of Existing Approaches in CFD

Frontiers in Mechanical Engineering, 2020
Emissions of nitrogen oxides (NOx) from combustion systems remain a lingering environmental issue, being these species either greenhouse gases or acid rain precursors.
Salvatore Iavarone, Alessandro Parente
doaj   +1 more source