Understanding strong knocking mechanism through high-strength optical rapid compression machines

J Pan, Z Hu, H Wei, M Pan, X Liang, G Shu… - Combustion and Flame, 2019 - Elsevier
Strong knocking combustion has become the greatest challenge for advanced internal
combustion engines to pursue thermal efficiency limits at high power density conditions …

[HTML][HTML] Synergistic effects of nanosecond plasma discharge and hydrogen on ammonia combustion

M Shahsavari, AA Konnov, XS Bai, A Valera-Medina… - Fuel, 2023 - Elsevier
Synergistic effects of nanosecond plasma discharge and hydrogen on the combustion
characteristics of ammonia/air are numerically studied under conditions relevant to gas …

A statistical analysis of developing knock intensity in a mixture with temperature inhomogeneities

MB Luong, S Desai, FEH Pérez, R Sankaran… - Proceedings of the …, 2021 - Elsevier
Knock formation and its intensity for a stoichiometric ethanol/air mixture under a
representative end-gas auto-ignition condition in IC engines with temperature …

Large-eddy simulation study on cycle-to-cycle variation of knocking combustion in a spark-ignition engine

C Chen, P Pal, M Ameen, D Feng, H Wei - Applied Energy, 2020 - Elsevier
The cycle-to-cycle variation in the knock intensity is commonly encountered under abnormal
combustion conditions. The severity of these abnormal combustion events can vary …

Numerical investigations on the effects of turbulence intensity on knocking combustion in a downsized gasoline engine

L Chen, H Wei, C Chen, D Feng, L Zhou, J Pan - Energy, 2019 - Elsevier
In this work, the influence of turbulence intensity on knocking characteristics was studied.
Different levels of initial swirl ratio inside cylinder were firstly performed to investigate the …

Effects of turbulence and temperature fluctuations on knock development in an ethanol/air mixture

MB Luong, S Desai, FE Hernández Pérez… - Flow, Turbulence and …, 2021 - Springer
The effects of turbulence on knock development and intensity for a thermally
inhomogeneous stoichiometric ethanol/air mixture at a representative end-gas autoignition …

Mechanism of end-gas autoignition induced by flame-pressure interactions in confined space

H Wei, X Zhang, H Zeng, R Deiterding, J Pan… - Physics of …, 2019 - pubs.aip.org
The main objective of this work is to comprehensively provide a fundamental understanding
of the entire process of the flame-pressure wave interactions with end-gas autoignition and …

Effects of flame propagation speed on knocking and knock-limited combustion in a downsized spark ignition engine

X Zhao, Z Zhu, Z Zheng, Z Yue, H Wang, M Yao - Fuel, 2021 - Elsevier
Engine knock remains the key factor that ultimately restricts the peak thermal efficiency in
modern downsized spark ignition (SI) engines. The flame propagation speed can affect …

Numerical study on auto-ignition development and knocking characteristics of a downsized rotary engine under different inlet pressures

R Zou, J Liu, H Jiao, N Wang, J Zhao - Fuel, 2022 - Elsevier
In the study, a three-dimensional CFD simulating model coupling with reasonable turbulent
model and reduced chemical kinetic mechanism was established and validated. The auto …

Effect of flame speed on knocking characteristics for SI engine under critical knocking conditions

L Chen, R Zhang, H Wei, J Pan - Fuel, 2020 - Elsevier
Engine knock essentially involves the interplay between end-gas auto-ignition and primary
flame propagation. However, literature shows inconsistent correlations between turbulent …