【摘 要】
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A combustion system model of CNG-DI engine which was modified from a 2.0L diesel engine was built with software FIRE,the turbulence combustion model of CNG-
【机 构】
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State Key Laboratory of Automotive Simulation and Control,Jilin University
论文部分内容阅读
A combustion system model of CNG-DI engine which was modified from a 2.0L diesel engine was built with software FIRE,the turbulence combustion model of CNG-DI engine was verified with the experimental result of CNG-DI optical engine,on the condition of unchanged 4 valves structure of original engine and the jet location,the spark plug was arranged between the two exhaust valves,the effect of different combustion chamber shapes on the microscopic physical fields such as turbulence characteristic in cylinder was simulated and studied,based on which the effect of combustion chamber shapes on the formation and combustion of mixture and the formation rule of NO was researched.
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