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LIU Ge,XIE Maozhao,JIA Ming
Online:
Published:
刘戈,解茂昭,贾明
Abstract:
The representative interactive flamelets(RIF)model was coupled with the large eddy simulation(LES)method to predict the turbulent combustion in a diesel engine.The new approach is specifically suitable for the simulation of the complicated combustion processes in internal combustion engines because the multi-scale and highly-transient turbulent motion can be well reproduced,and detailed chemical mechanism can be used.By combining the KIVALES-RIF code developed in previous work with a reduced n-heptane oxidation mechanism,the combustion processes and emission characteristics of a single-cylinder version of the Caterpillar 3400 series heavy-duty diesel engine was simulated under the baseline operating condition.The results indicated that the predicted ignition delay,in-cylinder pressure,heat release rate and pollutants emission levels were in good agreements with the experimental results.Comparison between the predictions of the Reynolds averaged Navier-Stokes(RANS)method and the LES method showed that the turbulence model played an extremely important role in the prediction of the combustion processes.
LIU Ge,XIE Maozhao,JIA Ming. Large eddy simulation of combustion processes in ICE based on RIF model[J]. .
刘戈,解茂昭,贾明. 基于互动小火焰模型的内燃机燃烧过程大涡模拟 [J]. CIESC Journal.
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https://hgxb.cip.com.cn/EN/Y2011/V62/I9/2490