常亚超

个人信息Personal Information

副教授

博士生导师

硕士生导师

性别:男

毕业院校:大连理工大学

学位:博士

所在单位:能源与动力学院

学科:工程热物理

办公地点:能源与动力学院809

联系方式:15140422034

电子邮箱:changyc@dlut.edu.cn

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Construction of a decoupling physical-chemical surrogate (DPCS) for practical diesel fuel

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论文类型:期刊论文

发表时间:2021-03-04

发表刊物:APPLIED THERMAL ENGINEERING

卷号:149

页面范围:536-547

ISSN号:1359-4311

关键字:Multi-component fuel; Diesel surrogate; Physical and chemical properties; Computational fluid dynamics (CFD)

摘要:A decoupling physical chemical surrogate (DPCS) model was constructed for simulating the multi-component physical and chemical characteristics of practical diesel fuel. In the DPCS model, the physical and chemical characteristics of diesel fuel are surrogated separately, and the physical and chemical surrogates are coupled according to the principles of C/H mass ratio, functional group structure, and carbon balance. By implementing the DPCS model into a Computational Fluid Dynamics (CFD) code, the effect of the multi-component physical and chemical characteristics of diesel fuel on the spray, combustion, and emission characteristics in a constant volume chamber and an optical diesel engine were explored. The results indicate that the DPCS model can satisfactorily reproduce the diesel vaporization and combustion behaviors under wide operating conditions.