前保险杠导流板迎风角度对轻型客车风阻的影响

doi:10.19562/j.chinasae.qcgc.2022.11.016

Abstract

Abstract:

In order to reduce the aerodynamic drag of light bus during driving for energy saving， the influence of the windward angle of the front bumper deflector on the wind resistance of the vehicle is investigated in this paper. Computational fluid dynamics analysis is carried out on both the original vehicle and the vehicles equipped with a deflector with a windward angle of 35°~90°. The results show that adding deflectors with different windward angles on the front bumper has a drag reduction effect， with the minimum drag coefficient achieved at a windward angle of 45 °. A wind tunnel test on the vehicle is also performed and the results indicate that with a test wind speed of 80~120 km/h， the drag coefficient reduces by 0.2%~0.5% and 3.3%~3.9% respectively under the conditions of opened and closed air intake grilles by adding a deflector with a windward angle of 45°.

Key words: front bumper deflector, aerodynamic drag coefficient, windward angle, wind tunnel test

Shuangshuang Li,Wei Song,Liang Zou,Junying Min,Jianping Lin. Influence of the Windward Angle of Front Bumper Deflector on the Aerodynamic Drag of a Light Bus[J].Automotive Engineering, 2022, 44(11): 1779-1785.

Figures/Tables 15

References 15

1	CHAUHAN B， VEDRTNAM A， PRATAP V. Designing rear view mirror of car using CFD and reverse engineering ［J］. Journal of the Chinese Society of Mechanical Engineers， 2020， 41（3）： 373-380.
2	SHARMA R B， BANSAL R. CFD simulation for flow over passenger car using tail plates for aerodynamic drag reduction［J］. IOSR Journal of Mechanical and Civil Engineering （IOSR-JMCE）， 2013， 7（5）： 28-35.
3	曾艳. 某MPV车型气动造型改进设计［D］.上海：上海交通大学，2016.
	ZENG Y. Study on improved design of a certain MPV aerodynamic styling［D］. Shanghai： Shanghai Jiaotong University， 2016.
4	肖能，王小碧，王伟民，等. 前导流板对机舱进气量和车辆气动阻力的影响研究［J］. 汽车工程， 2014，36（10）：1254-1257.
	XIAO N， WANG X B， WANG W M， et al. A study on the influence of front deflector height on the air inflow of engine compartment and the drag coefficient of vehicle ［J］. Automotive Engineering， 2014，36（10）：1254-1257.
5	ILEA L， IOZSA D. Wheels aerodynamics and impact on passenger vehicles drag coefficient ［J］. IOP Conference Series： Materials Science and Engineering， 2018，444： 072005.
6	刘学龙，闫晓晓，黄森仁. 汽车底部流场对气动阻力性能影响的研究［J］.新型工业化， 2015，5（3）：35-41.
	LIU X L， YAN X X， HUANG S R. Numerical research on influence of the underbody flow structure of automotive aerodynamic performance ［J］. The Journal of New Industrialization， 2015，5（3）：35-41.
7	蒋丽. 基于CFD的中型SUV气动减阻研究［D］.长春：吉林大学，2019.
	JIANG L. Research on low aero-drag design of mid-sized SUV on CFD ［D］. Changchun： Jilin University， 2019.
8	康宁，丁浩.车轮前阻风板对汽车风阻的影响［J］.汽车技术，2015（12）：29-33.
	KANG N， DING H. Influence of the font-wheel spoiler on aerodynamic drag of vehicle［J］. Automobile Technology， 2015（12）：29-33.
9	苗秀奇. 基于CFD的汽车会车空气动力学模拟分析［D］. 天津：天津科技大学，2017.
	MIAO X Q. Simulation analysis of aerodynamics of vehicles meeting based on CFD［D］. Tianjin： Tianjin University of Science and Technology，2017.
10	LEE S W. Computational analysis of air jet wheel deflector for aerodynamic drag reduction of road vehicle［J］. Microsystem Technologies， 2018， 24（11）： 4453-4463.
11	徐鹏，李春花，刘鹏，等.某SUV车型底部气动附件的开发与研究［J］.汽车技术，2014（7）：14-17.
	XU P， LI C H， LIU P， et al. Development and research on pneumatic accessories on the bottom of a SUV［J］. Automobile Technology， 2014（7）：14-17.
12	刘传波，刘康，占魁，等.汽车主动进气格栅开启角度的匹配优化［J］.机械设计与制造，2021（9）：160-163，167.
	LIU C B， LIU K， ZHAN K， et al. Optimization of the opening angle of the vehicle's active grille shutter ［J］. Machinery Design & Manufacture， 2021（9）：160-163，167.
13	夏超，单希壮，杨志刚，等. 不同湍流模型在列车外流场计算中的比较［J］.同济大学学报（自然科学版）， 2014， 42（11）：1687-1693.
	XIAO C， SHAN X Z， YANG Z G， et al. A comparative study of different turbulence models in computation of flow around simplified train ［J］. Journal of Tongji University （Natural Science）， 2014，42（11）：1687-1693.
14	李春鹏，赵婧. 某电动SUV尾翼优化方案分析［J］.汽车工程学报，2019，9（6）：436-440.
	LI C P， ZHAO J. Shape optimization of tail fins on an electric SUV ［J］. Chinese Journal of Automotive Engineering， 2019，9（6）：436-440.
15	赵强，林建平，闵峻英，等.客车发动机舱热管理系统的数值仿真与实验验证［J］.计算机辅助工程，2017，26（6）：23-29.
	ZHAO Q， LIN J P， MIN J Y， et al. Numerical simulation and experimental verification on bus underhood thermal management system［J］. Computer Aided Engineering， 2017，26（6）：23-29.

[1]	WANG Dan, LIU Zhong-Chang, TIAN Jing, HAN Yong-Qiang, TAN Man-Zhi. [J]. , 2016, 38(12): 1415 -1419 .
[2]	LI Ling, MA Li, MOU Yu, XU Chao, LI Wen-Ru, SHI Shu-Ming. [J]. , 2016, 38(12): 1508 -1514 .
[3]	ZHANG Jian, ZHOU Dao-Kui, TONG Rui, QI Hao-Chen. [J]. , 2017, 39(1): 47 -51 .
[4]	Chen-Xin, FENG Xiao, SHEN Chuan-Liang, WANG Shuo, HU Cui-Song, LI Yan-Yang, YANG Chang-Hai-　. [J]. , 2017, 39(2): 206 -213 .
[5]	CAO Li-Bo, CHEN Zheng, YAN Ling-Bo, QIN Qin, ZHANG Rui-Feng. [J]. , 2017, 39(2): 225 -231 .
[6]	SONG Ke, ZHANG Tao, NIU Wen-Xu, ZHANG Tong. [J]. , 2017, 39(3): 249 -255 .
[7]	DENG Li-Jun, LIU Yong-Qi, XIONG Pei-You, WANG Zhi-Ming. [J]. , 2017, 39(3): 269 -274 .
[8]	ZHANG Yong, GU Zheng-Qi, LIU Shui-Chang, MI Cheng-Ji. [J]. , 2017, 39(3): 275 -280 .
[9]	JIN Li-Qiang, SHI Guan-Nan, KONG De-Juan, YU Ya-Jing. [J]. , 2017, 39(3): 281 -287 .
[10]	ZHANG Jia-Xu, LI Jing. [J]. , 2017, 39(3): 335 -342 .

边界位置	边界条件
计算域前端	速度入口，v=27.8 m/s
计算域后端	压力出口，p=0
车体表面	固定壁面
计算域顶面、侧面、地面	移动壁面（27.8 m/s）
轮胎	静止

试验状态	试验工况
进气格栅封闭	雷诺数扫掠（ψ=0°，v=80、100、120 km/h）
进气格栅开放	雷诺数扫掠（ψ=0°，v=80、100、120 km/h）

[1]	Jingfeng Shao,Huihui Zuo,Xingjun Hu. Optimization of Aerodynamic Drag Reduction and Its Flow-Field Mechanism for a Sport Utility Vehicle (SUV) [J]. Automotive Engineering, 2024, 46(2): 356-365.
[2]	Ling Qin,Xiaojin Du,Jinyang Feng,Shunqiao Huang,Menghua Duan,Qingyang Wang. Study on Aerodynamic Noise Characteristics of SUV Hollow Roof Spoiler [J]. Automotive Engineering, 2023, 45(5): 880-887.
[3]	Miaoyan Song,Guocheng Zhou,Hongqing Chen,Bao Chen. Noise Reduction Design and Wind Tunnel Test Verification of an SUV Rearview Mirror [J]. Automotive Engineering, 2023, 45(4): 681-689.
[4]	Xingjun Hu,Jingming Mao,Yanghui Zhang,Yichen Liu,Jiayi Ma,Junxian Qiao,Tianming Yu. The Wind Noise Source and Its Characteristic Analysis of HSM Standard Model [J]. Automotive Engineering, 2022, 44(8): 1262-1271.
[5]	Yubo Lian,Qiuli Luo,Fengli Zhang,Rongrong Zhang,Yadong Zhang. Automotive Aerodynamics Development Based on Shape Optimization Method [J]. Automotive Engineering, 2022, 44(10): 1619-1626.
[6]	Yan Shi,Yao Li,Peipei Xu. Flow Field Simulation of Engine Compartment in a Commercial Vehicle and Design Optimization of Flow Guiding Shroud [J]. Automotive Engineering, 2021, 43(8): 1248-1253.
[7]	Zhigang Yang,Liqi Peng,Zhe Shen,Li Chen. Experimental Study on Vehicle Dynamic and Static Leak Noises at Different Sealing Positions Based on Tape Sealing Method [J]. Automotive Engineering, 2021, 43(5): 784-790.
[8]	Chao Ren,Haibo Wu,Qian Chen. Experimental and Simulation Research on the Influence of Wheels on Vehicle Aerodynamic Performance [J]. Automotive Engineering, 2021, 43(12): 1848-1857.
[9]	Li Tiantian, Zhao Lanping, Wang Jianxin, Zhu Zhijun, Zhang Jun, Zhang Hao. Cooling Airflow Simulation and Heat Dissipation Improvement of Engine Compartment [J]. Automotive Engineering, 2020, 42(9): 1197-1205.
[10]	Wang Jingyu, Geng Yalin, Hui Zheng, Hu Xingjun, Li Tianhong, Liu Zicheng, Li Jiuchao. Study on Drag Reduction of Square-back AhmedModel Based on Plasma Flow Control [J]. Automotive Engineering, 2020, 42(6): 753-758.
[11]	Qin Peng, Zhan Jia, Li Zhengzheng. Study on Aerodynamic Optimization of Rear Spoiler in a MPV [J]. Automotive Engineering, 2020, 42(6): 765-770.
[12]	He Yansong, Cao Lipeng, Zhang Zhifei, Li Yun, Chen Zhao. Optimization of Vehicle Aerodynamic Drag Based on Discrete Adjoint Method and Surrogate Model [J]. Automotive Engineering, 2020, 42(11): 1577-1584.
[13]	Fang Jian & Wang Fuliang. A Study on CFD Simulation and Wind Tunnel Test on Aerodynamic Effectsof Wheel Rotation and Drag Reduction Optimization [J]. Automotive Engineering, 2019, 41(9): 1006-1012.
[14]	Wang Jun, Chen Ruyi. A Study on Calculation Accuracy of Turbulent Pressure Fluctuation on Vehicle Surface [J]. Automotive Engineering, 2019, 41(11): 1281-1285.
[15]	Wang Jun, Cheng Ruyi, Yang Jianguo, Gong Xu, Li Lin. Simulation and Experimental Study on Aerodynamic Noise of Automotive Rear-view Mirror [J]. , 2018, 40(12): 1480-1487.

Influence of the Windward Angle of Front Bumper Deflector on the Aerodynamic Drag of a Light Bus

RichHTML

PDF (PC)

Like

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 15

References 15

Related Articles 15

Metrics

Comments

Recommended 10