利用矩阵风扇的发动机舱流场优化

王宏朝; 单希壮; 杨志刚

doi:10.7652/xjtuxb201703003

您当前的位置：

首页 >

文章列表页 >

利用矩阵风扇的发动机舱流场优化

更新时间：2025-07-09

- 利用矩阵风扇的发动机舱流场优化
- Optimization for Underhood Flowfield by Matrix Fan
- 西安交通大学学报 2017年51卷第3期页码：14-19
- 作者机构：
  
  同济大学上海市地面交通工具风洞中心,上海,201804
- 作者简介：
- 基金信息：
  
  : 2016-08-01。作者简介: 王宏朝(1987—),男,博士生;单希壮(通信作者),男,教授,博士生导师。基金项目: 上海市地面交通工具空气动力与热环境模拟重点实验室项目;中央高校基本科研业务费专项资金资助项目
- DOI：10.7652/xjtuxb201703003
  中图分类号： U467.1
- 网络首发：2017-03-10，
  
  纸质出版：2017
- 稿件说明：
移动端阅览
王宏朝, 单希壮, 杨志刚. 利用矩阵风扇的发动机舱流场优化[J]. 西安交通大学学报, 2017,51(3):14-19.

Optimization for Underhood Flowfield by Matrix Fan[J]. 2017, 51(3): 14-19.
王宏朝, 单希壮, 杨志刚. 利用矩阵风扇的发动机舱流场优化[J]. 西安交通大学学报, 2017,51(3):14-19. DOI： 10.7652/xjtuxb201703003.

Optimization for Underhood Flowfield by Matrix Fan[J]. 2017, 51(3): 14-19. DOI： 10.7652/xjtuxb201703003.

摘要

发动机舱热管理逐渐成为提高发动机性能的重点问题

为此在传统乘用车的单风扇系统上设计了5种矩阵风扇

并利用数值模拟技术分析了阵型对冷却模块空气侧流场的影响

在此基础上引入导风管进一步研究了冷却模块的空气质量流量及前端热回流效果。结果表明:相比单风扇系统

矩阵风扇型式下通过散热器的空气质量流量有所提升

特别在高速工况下

受冲压气流的作用散热器表面的速度均匀度提高

通过散热器的空气质量流量提升

前端热回流减少; 引入导风管后不仅能够进一步提高车辆在高速工况下通过散热器的进气量

而且可以降低怠速时冷凝器迎风面温度; 结合导风管的矩阵风扇可在不减少冷却模块进气量的前提下

通过降低风扇转速来减少冷却系统的能耗

进而提高燃油经济性

抑制怠速时车辆前端的热回流

改善冷却模块的换热性能。

Abstract

Underhood thermal management has gradually become the key problem for improving the engine performance. Based on single fan configuration of a traditional passenger car

five matrix fan configurations are totally designed

and the effects of different configurations on the air-side flowfield of cooling module are numerically simulated. Introducing an air duct

the effects of air mass flowrate and hot air recirculation on the front end are further analyzed. The results indicate that the matrix fan configurations can increase the mass flowrate through the radiator compared with the original single fan configuration

especially in high-speed condition. With the ram air effect

the velocity uniformity is improved

the air mass flowrate is enhanced

and the hot air recirculation is also lessened. Setting air duct heightens the mass flowrate through the radiator at high speed

and lowers the average temperature on windward surface of condenser at idle. In conclusion

matrix fan with air-duct reduces power consumption of cooling system without the penalty of air intake capacity of front end by decreasing the fan rotation speed

and then improves the fuel economy and the heat transfer performance of cooling module by suppressing the hot air recirculation at idle.

关键词

Keywords

references

WIEDEMANN T K A J. Investigations in a cooling air flow system under the influence of road simulation: 2008-01-0796 [R]. Washington, DC, USA: SAE, 2008.

MAO S, FENG Z, MICHAELIDES E E. Off-highway heavy-duty truck under-hood thermal analysis [J]. Journal of Applied Thermal Engineering, 2010, 30(13): 1726-1733.

PHAPALE S, KOMMAREDDY P. Optimization of commercial vehicle cooling package for improvement of vehicle fuel economy: 2015-01-1349 [R]. Washington, DC, USA: SAE, 2015.

STAUNTON N. Assessment of advanced thermal management systems for micro-hybrid trucks and heavy duty diesel vehicles [C]∥IEEE Vehicle Power and Propulsion Conference. Piscataway, NJ, USA: IEEE, 2008: 1-6.

PAGE R W. Thermal management for the 21st century “improved thermal control fuel economy in an army medium tactical vehicle”: 2005-01-2068 [R]. Washington, DC, USA: SAE, 2005.

WANG T T, JAGARWAL A, WAGNER J, et al. Optimization of an automotive radiator fan array operation to reduce power consumption [C]∥IEEE/ASME Transactions on Mechatronics, 2015, 20(5): 2359-2369.

WANG Tianwei, WAGNER J. Advanced automotive thermal management: nonlinear radiator matrix fan control [J]. Control Engineering Practice, 2015, 41: 113-123.

STEPHENS T. Travis cross, fan and heat exchanger flow interactions: 2005-01-2004 [R]. Washington, DC, USA: SAE, 2005.

CHIOU J P. The effect of the flow nonuniformity on the sizing of the engine radiator: 800035 [R]. Washington, DC, USA: SAE, 1980.

ZHANG Chunhui, UDDIN M. Simultaneous improvement of vehicle under-hood airflow and cooling drag using 3D CFD simulation: 2016-01-0200 [R]. Washington, DC, USA: SAE, 2016.

REGIN F, SUZUKI M. A numerical analysis on air-cooling performance of passenger cars: 2010-01-0554 [R]. Washington, DC, USA: SAE, 2010.

YANG Z, BOZEMAN J, SHEN F Z, et al. CFRM concept for vehicle thermal systems: 2002-01-1207 [R]. Washington, DC, USA: SAE, 2002.

SONG X, FORTIER R, SARNIA S. Underhood air duct design to improve A/C system performance by minimizing hot air recirculation: 2015-01-1689 [R]. Washington, DC, USA: SAE, 2015.

JAHANI K, BEIGMORADI S. Under-hood air flow evaluation of pedestrian-friendly front-end style using CFD simulation [J]. SAE International Journal of Passenger Cars: Mechanical Systems, 2014, 7(2): 787-792.

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

基于矩阵风扇的车辆前端换热优化

水蒸气掺混对氨裂解气旋流燃烧与排放特性的影响研究

张角凹坑气膜孔对双层壁气膜冷却特性的影响

三塔合一间接空冷系统结构参数对夏季运行特性的影响研究

超临界二氧化碳向心透平轮背间隙内风阻损失及流动特性研究