Numerical Simulation Research on Diesel Engine Emissions with Different Air Swirl Ratios in Cylinder

王艳华; 李云清; 成传松

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Numerical Simulation Research on Diesel Engine Emissions with Different Air Swirl Ratios in Cylinder

更新时间：2026-09-14

- Numerical Simulation Research on Diesel Engine Emissions with Different Air Swirl Ratios in Cylinder
- 涡流比对柴油发动机排放影响的三维数值模拟
- Vol. 32, Issue 6, Pages: 676-681(2011)
- 作者机构：
  
  1. 中北大学机电工程学院
  2. 北京航空航天大学交通科学与工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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王艳华, 李云清, 成传松. Numerical Simulation Research on Diesel Engine Emissions with Different Air Swirl Ratios in Cylinder[J]. 2011, 32(6): 676-681.
DOI：

王艳华, 李云清, 成传松. Numerical Simulation Research on Diesel Engine Emissions with Different Air Swirl Ratios in Cylinder[J]. 2011, 32(6): 676-681. DOI：

摘要

为了研究缸内涡流运动对柴油发动机排放的影响和确定减小原发动机排放的措施

采用AVLF ire进行三维建模

对缸内涡流运动在进气门关闭以后的流场进行模拟研究.通过对不同涡流比对应工况下的缸内混合气浓度场分布、燃烧放热规律以及缸内温度变化进行分析研究

确定了发动机排放随涡流强度的变化规律.研究表明

发动机喷雾油束受涡流强度影响比较大

从而影响缸内混合气的形成、燃烧和排放.

Abstract

To research the effect of swirl flow in cylinder on diesel engine emissions and to reduce the emissions

three-dimensional model was built with AVL Fire to simulate air swirl motion.The concentration distribution of fuel-air mixture and the relationship of combustion heat release and the change of temperature in cylinder were studied under different swirl ratio in the simulation with the intake valve being closed.The relationship of the engine emissions and the air swirl density was found.The results show that the fuel spray bunches distribution in cylinder are mainly affected by air swirl density

which further affect the air mixing process

combustion process and emissions levels.

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references

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