A numerical study on pressure wave-induced end gas auto-ignition near top dead center of a downsized spark ignition engine

• Published in: International journal of hydrogen energy Vol. 39; no. 36; pp. 21265 - 21274
• Main Authors: Wei, Haiqiao, Shang, Yibao, Chen, Ceyuan, Gao, Dongzhi, Feng, Dengquan
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier 12.12.2014
• Subjects: Alternative fuels. Production and utilization; Applied sciences; Computational fluid dynamics; Delay; Energy; Exact sciences and technology; Fluid flow; Fuels; Hydrogen; Ignition; Incidence; Mathematical models; Pressure waves; Turbulent flow; Numerical analysis; Sensitivity analysis; Pressure wave; Hydrogen; Autoignition; Spark ignition engine; Auto-ignition; Engine

Auto-ignition of end gas is known as a main cause of knock in SI engine. In order to study the characters of auto-ignition induced by pressure wave, different levels of hot zones characterized by temperature gradients are created in end gas, which are then ignited by incident pressure wave developed...