Combustion simulation of a 1.9 L turbo-charged diesel engine with detailed chemical kinetics model
by Jun Xin; Ning Ding; Ming Chen; Zheng Xu
International Journal of Powertrains (IJPT), Vol. 5, No. 4, 2016

Abstract: To meet stringent emission and fuel consumption requirements, many auto companies have been developing advanced diesel engines. As a key virtual design verification tool in the loop of engine development, CFD can provide a deep insight into the physical processes in the cylinders. In this paper, combustion simulation of a common rail injection diesel engine is presented. Here different combustion chambers are investigated. The SAGE detailed chemistry kinetics model with multi-zone algorithm is used for the combustion simulation. A bench test of the 1.9 L turbocharged diesel engine was performed to verify the calculation results. The swirl ratio, in-cylinder temperature and heat release rates for different combustion chamber shapes, different engine operation conditions are compared. The evolution of fuel injection, flames and emissions are also studied. The simulation results and test data show good correlation.

Online publication date: Thu, 26-Jan-2017

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