柴油机高压进气流动模拟中的湍流模型应用研究

尤国栋; 苏铁熊; 徐春龙; 王增全

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柴油机高压进气流动模拟中的湍流模型应用研究

机械与动力工程 | 更新时间：2026-09-14

- 柴油机高压进气流动模拟中的湍流模型应用研究
- Application Investigation of Different Turbulent Models on High Pressure Intake Flows in CI Engine
- 中北大学学报（自然科学版） 2012年33卷第4期页码：416-419
- 作者机构：
  
  1. 中北大学机电工程学院
  2. 中国北方发动机研究所
- 作者简介：
- 基金信息：
- DOI：
  中图分类号：
- 纸质出版：2012
- 稿件说明：
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尤国栋, 苏铁熊, 徐春龙, 等. 柴油机高压进气流动模拟中的湍流模型应用研究[J]. 中北大学学报（自然科学版）, 2012,33(4):416-419.

尤国栋, 苏铁熊, 徐春龙, et al. Application Investigation of Different Turbulent Models on High Pressure Intake Flows in CI Engine[J]. 2012, 33(4): 416-419.
尤国栋, 苏铁熊, 徐春龙, 等. 柴油机高压进气流动模拟中的湍流模型应用研究[J]. 中北大学学报（自然科学版）, 2012,33(4):416-419. DOI：

尤国栋, 苏铁熊, 徐春龙, et al. Application Investigation of Different Turbulent Models on High Pressure Intake Flows in CI Engine[J]. 2012, 33(4): 416-419. DOI：

摘要

针对柴油机功率密度提高后

进气流动马赫数增大导致严重的流动分离现象

采用k-ε和k-ζ-f湍流涡粘度模型

对U型通道内的气流的运动进行了数值模拟.结果显示k-ζ-f湍流模型能更有效地捕捉到分离流动现象.建立了等效进气门模型

应用三维CFD技术模拟了进气流动速度场

与PIV试验结果对比表明

k-ζ-f模型能更准确地表征进气流动的旋涡和流动分离现象.选择k-ζ-f湍流模型对柴油机直进气道在高压差进气条件下的流量系数进行了模拟

与试验结果吻合良好.

Abstract

With the technical trend of high-power density of diesel engine

the high Mach number intake flow results in the serious flow separation.With k-ε and k-ζ-f turbulent eddy viscosity models

U-shape pipe flow experiment

k-ζ-f model can identify the flow separation more effectively.With the established intake valve model

3D CFD simulation is applied to simulate the flow of intake valve field.The comparison with PIV experiment results shows that

k-ζ-f model can simulate the intake vortex and flow separation with higher accuracy.With k-ζ-f models

the intake process of diesel direct intake with high-pressure drop is calculated.The intake discharge is in good agreement with the experiment.

关键词

Keywords

references

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