Article(id=1154016882425324109, tenantId=1146029695717560320, journalId=1152916057816748034, issueId=1154016878675611672, articleNumber=null, orderNo=null, doi=10.3969/j.issn.2095–1469.2024.01.06, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1668355200000, receivedDateStr=2022-11-14, revisedDate=1672329600000, revisedDateStr=2022-12-30, acceptedDate=null, acceptedDateStr=null, onlineDate=1753068665366, onlineDateStr=2025-07-21, pubDate=null, pubDateStr=null, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1753068665366, onlineIssueDateStr=2025-07-21, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1753068665366, creator=13701087609, updateTime=1753068665366, updator=13701087609, issue=Issue{id=1154016878675611672, tenantId=1146029695717560320, journalId=1152916057816748034, year='2024', volume='14', issue='1', pageStart='1', pageEnd='153', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=0, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1753068664473, creator=13701087609, updateTime=1757481546563, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1172525847715136459, tenantId=1146029695717560320, journalId=1152916057816748034, issueId=1154016878675611672, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1172525847715136460, tenantId=1146029695717560320, journalId=1152916057816748034, issueId=1154016878675611672, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=60, endPage=71, ext={EN=ArticleExt(id=1154016882920251984, articleId=1154016882425324109, tenantId=1146029695717560320, journalId=1152916057816748034, language=EN, title=Research on Aerodynamic Design Optimization for an SUV Chassis, columnId=1154016880298807327, journalTitle=Chinese Journal of Automotive Engineering, columnName=System Dynamics Setion, runingTitle=null, highlight=null, articleAbstract=
Optimizing the aerodynamic performance of the vehicle chassis has an important impact on reducing the aerodynamic drag and lift of the vehicle. The optimized design in the chassis area is a crucial approach to improve the fuel economy and power of the vehicle. In this paper, a Computational Fluid Dynamics (CFD) simulation analysis of the external flow field is conducted for a sport utility vehicle (SUV). The paper compares the simulation accuracy of Realizable kɛ and SST kw turbulence models, ultimately selecting the Realizable kɛ turbulence model for the aerodynamic design of the chassis. Combining the SUV chassis characteristics and the flow field analysis, and aiming to minimize the overall cost, the paper designed five aerodynamic proposals for the chassis, including the front lower spoiler, the front wheel baffle, the subframe rear spoiler, the middle chassis guard and the tail muffler shape optimization. A fullscale wind tunnel test was carried out to verify the CFD simulation results. The results show that all five chassis proposals contribute to the improved aerodynamic performance. The tail muffler shape optimization has a notable impact on drag reduction, decreasing the vehicle's drag coefficient by 2.99%. When the five proposals are combined, the drag coefficient and lift coefficient are reduced by 5.16% and 21%, respectively. The study effectively achieves energysaving and drag reduction, and improves driving stability of the vehicle.
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汽车底盘空气动力性能优化对降低整车空气阻力和升力有重要影响,针对底盘区域进行空气动力性能优化设计是提升整车动力经济性的重要途径。针对某款运动型多用途汽车(Sport Utility Vehicle,SUV)开展整车外流场计算流体动力学(Computational Fluid Dynamics,CFD)仿真分析,对比了Realizable ke 和SST kω两种湍流模型仿真精度,选用Realizable ks湍流模型进行底盘空气动力学方案设计。结合该SUV底盘特征及仿真流场分析结果,在尽可能降低整车成本的前提下,设计前保险杠下部阻风板、前轮挡板斜梯、副车架后部导流板、底盘中部护板以及尾部消音器造型优化共5种空气动力学方案,并进行了实车风洞试验验证。结果表明,5种方案对整车空气阻力性能提升均有不同程度的贡献,其中尾部消音器造型优化减阻效果明显,实车空气阻力系数降低2.99%;综合采用5种底盘空气动力学方案后空气阻力系数共降低5.16%,升力系数降低21.00%,有效实现节能降阻,并有助于提高整车行驶稳定性。
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王庆洋(1988-),男,黑龙江七台河人,博士,工程师,主要研究方向为汽车空气动力学、钝体绕流、风洞试验技术。Tel:15811043159 E-mail:wangqingyang@caeri.com.cn
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王庆洋(1988-),男,黑龙江七台河人,博士,工程师,主要研究方向为汽车空气动力学、钝体绕流、风洞试验技术。Tel:15811043159 E-mail:wangqingyang@caeri.com.cn
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1998., articleTitle=Aerodynamics of Road Vehicles, refAbstract=null)], funds=[Fund(id=1154016978411970971, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, awardId=2022YFE0100100, language=CN, fundingSource=国家重点研发计划项目(2022YFE0100100), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1154016972250538293, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, xref=1, ext=[AuthorCompanyExt(id=1154016972258926902, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, companyId=1154016972250538293, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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整车风洞坐标系, figureFileSmall=+e5jLXPe2F6P7HlKxBm65A==, figureFileBig=i62685Mwb52BqJl7wz6kbQ==, tableContent=null), ArticleFig(id=1154016975442403689, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=EN, label=null, caption=null, figureFileSmall=Q5Xotfb9GIllKez5NsXFmw==, figureFileBig=+jmhNvzMCccaI/5ircid7Q==, tableContent=null), ArticleFig(id=1154016975496929642, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=CN, label=图 5, caption=
$X = 0$ (转盘中心) 处空风洞边界层速度型分布, figureFileSmall=Q5Xotfb9GIllKez5NsXFmw==, figureFileBig=+jmhNvzMCccaI/5ircid7Q==, tableContent=null), ArticleFig(id=1154016975559844203, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=EN, label=null, caption=null, figureFileSmall=Sq7sPCDkNGgteOlRofS2+A==, figureFileBig=wF5wrBf3foOtyb78HRJQTQ==, tableContent=null), ArticleFig(id=1154016975631147372, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=CN, label=图 6, caption=
世界汽车整车风洞轴向静压系数分布, figureFileSmall=Sq7sPCDkNGgteOlRofS2+A==, figureFileBig=wF5wrBf3foOtyb78HRJQTQ==, tableContent=null), ArticleFig(id=1154016975689867629, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=EN, label=null, caption=null, figureFileSmall=uK+XY4ASPKDd94bpb3sHDg==, figureFileBig=WIjwENexf6OyQI4m5pc2xQ==, tableContent=null), ArticleFig(id=1154016975744393582, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=CN, label=图 7, caption=
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整车中截面速度云图 $\left( {Y = 0}\right)$, figureFileSmall=6k5pD4KRmhkpH0BFmblFMw==, figureFileBig=xpfhG+QcB/54TSDVKPa11g==, tableContent=null), ArticleFig(id=1154016976025411955, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=EN, label=null, caption=null, figureFileSmall=ERwM9QSvJVkq2/OC1TT0kw==, figureFileBig=YxXaXyrDkiOdi+HLvOu++Q==, tableContent=null), ArticleFig(id=1154016976075743604, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=CN, label=图 10, caption=
尾部速度矢量图 $\left( {Y = 0}\right)$, figureFileSmall=ERwM9QSvJVkq2/OC1TT0kw==, figureFileBig=YxXaXyrDkiOdi+HLvOu++Q==, tableContent=null), ArticleFig(id=1154016976147046773, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=EN, label=null, caption=null, figureFileSmall=ndUkH6b125AYwB9v3iRAOA==, figureFileBig=vfdb7x36/yRpRQ/6NgGaYw==, tableContent=null), ArticleFig(id=1154016976197378422, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=CN, label=图 11, caption=
总压为零等势面的湍动能图, figureFileSmall=ndUkH6b125AYwB9v3iRAOA==, figureFileBig=vfdb7x36/yRpRQ/6NgGaYw==, tableContent=null), ArticleFig(id=1154016976268681591, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=EN, label=null, caption=null, figureFileSmall=t7wO/Te4bPqjP86JNVOIQQ==, figureFileBig=HKdD5Tz/IoI53Ttoe/4qEw==, tableContent=null), ArticleFig(id=1154016976327401848, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=CN, label=图 12, caption=
前保险杠下部阻风板方案对比图, figureFileSmall=t7wO/Te4bPqjP86JNVOIQQ==, figureFileBig=HKdD5Tz/IoI53Ttoe/4qEw==, tableContent=null), ArticleFig(id=1154016976394510713, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=EN, label=null, caption=null, figureFileSmall=vGMeHCOLLBB1aU5E4OpZjg==, figureFileBig=Z2fJqQR5S/SV/9MfsLI1Hw==, tableContent=null), ArticleFig(id=1154016976444842362, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=CN, label=图 13, caption=
前保险杠下部阻风板优化方案速度云图对比 $\left( {Y = 0}\right)$, figureFileSmall=vGMeHCOLLBB1aU5E4OpZjg==, figureFileBig=Z2fJqQR5S/SV/9MfsLI1Hw==, tableContent=null), ArticleFig(id=1154016976499368315, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=EN, label=null, caption=null, figureFileSmall=XvPB4r4wsz2VATtf7NXfSw==, figureFileBig=PlyS0US3QNlfTO8idSnFtg==, tableContent=null), ArticleFig(id=1154016976549699964, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=CN, label=图 14, caption=
前轮阻风板斜梯方案, figureFileSmall=XvPB4r4wsz2VATtf7NXfSw==, figureFileBig=PlyS0US3QNlfTO8idSnFtg==, tableContent=null), ArticleFig(id=1154016976616808829, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=EN, label=null, caption=null, figureFileSmall=4zq/O69Q/fDVCWNCrozWuQ==, figureFileBig=3+5VIk9tZg0HvThak3pK+w==, tableContent=null), ArticleFig(id=1154016976667140478, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=CN, label=图 15, caption=
前轮阻风板斜梯垂直截面速度云图, figureFileSmall=4zq/O69Q/fDVCWNCrozWuQ==, figureFileBig=3+5VIk9tZg0HvThak3pK+w==, tableContent=null), ArticleFig(id=1154016976717472127, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=EN, label=null, caption=null, figureFileSmall=klN3CKYEG4fByH/OTjQ74w==, figureFileBig=3NY62p/jsjd2DKwcw+vSTQ==, tableContent=null), ArticleFig(id=1154016976763609472, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=CN, label=图 16, caption=
副车架后部导流板方案, figureFileSmall=klN3CKYEG4fByH/OTjQ74w==, figureFileBig=3NY62p/jsjd2DKwcw+vSTQ==, tableContent=null), ArticleFig(id=1154016976813941121, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=EN, label=null, caption=null, figureFileSmall=T2PMMoeNSYvEaJwu0s4WXQ==, figureFileBig=PezYF7sQFf6/vZY3BkGIOg==, tableContent=null), ArticleFig(id=1154016976868467074, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=CN, label=图 17, caption=
底盘湍动能, figureFileSmall=T2PMMoeNSYvEaJwu0s4WXQ==, figureFileBig=PezYF7sQFf6/vZY3BkGIOg==, tableContent=null), ArticleFig(id=1154016976922993027, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=EN, label=null, caption=null, figureFileSmall=OawMMishIPTQau8penOwKg==, figureFileBig=l2QbLbbpXJs6q40UA2A9kQ==, tableContent=null), ArticleFig(id=1154016976977518980, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=CN, label=图 18, caption=
风洞试验增加底盘中部导流板, figureFileSmall=OawMMishIPTQau8penOwKg==, figureFileBig=l2QbLbbpXJs6q40UA2A9kQ==, tableContent=null), ArticleFig(id=1154016977040433541, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=EN, label=null, caption=null, figureFileSmall=7OtqcbmypsLLJKOuBIGzpw==, figureFileBig=LRjQg0ETAzGQcLR4mYhyQA==, tableContent=null), ArticleFig(id=1154016977094959494, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=CN, label=图 19, caption=
尾部消音器形状优化, figureFileSmall=7OtqcbmypsLLJKOuBIGzpw==, figureFileBig=LRjQg0ETAzGQcLR4mYhyQA==, tableContent=null), ArticleFig(id=1154016977153679751, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=EN, label=null, caption=null, figureFileSmall=bU1a3CIYID6uWSX8OEIfeg==, figureFileBig=ectXGQdwI6mRsZkkn99pRQ==, tableContent=null), ArticleFig(id=1154016977212400008, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=CN, label=图 20, caption=
车尾压力系数对比, figureFileSmall=bU1a3CIYID6uWSX8OEIfeg==, figureFileBig=ectXGQdwI6mRsZkkn99pRQ==, tableContent=null), ArticleFig(id=1154016977279508873, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=EN, label=null, caption=null, figureFileSmall=+A9PgB/tG1YJCmLrG06uhA==, figureFileBig=oqeKMZaCFBmI+Tk2q5moeA==, tableContent=null), ArticleFig(id=1154016977342423434, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=CN, label=图 21, caption=
中截面速度云图 $\left( {Y = 0}\right)$, figureFileSmall=+A9PgB/tG1YJCmLrG06uhA==, figureFileBig=oqeKMZaCFBmI+Tk2q5moeA==, tableContent=null), ArticleFig(id=1154016977409532299, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=EN, label=null, caption=null, figureFileSmall=wsz/i2E0RLBd7bj6z4iphw==, figureFileBig=e1YRrYC4hg0/no4K+iCr0w==, tableContent=null), ArticleFig(id=1154016977459863948, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=CN, label=图 22, caption=
实车试验组合方案, figureFileSmall=wsz/i2E0RLBd7bj6z4iphw==, figureFileBig=e1YRrYC4hg0/no4K+iCr0w==, tableContent=null), ArticleFig(id=1154016977514389901, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=EN, label=null, caption=null, figureFileSmall=vhsFSpOeKAx89KzpqFjNbQ==, figureFileBig=O+2i1vFsqHURfBv2aDw4Zg==, tableContent=null), ArticleFig(id=1154016977573110158, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=CN, label=图 23, caption=
组合优化方案总压为零等势面 (车尾区域), figureFileSmall=vhsFSpOeKAx89KzpqFjNbQ==, figureFileBig=O+2i1vFsqHURfBv2aDw4Zg==, tableContent=null), ArticleFig(id=1154016977644413327, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 计算域边界名称 | 边界条件 | 设定值 |
| 计算域入口 | 速度入口/ $\left( {\mathrm{{km}}/\mathrm{h}}\right)$ | 120 |
| 湍流强度 | 0.01 |
| 湍流尺度/mm | 1 |
| 计算域出口 | 压力出口/Pa | 0 |
| 湍流强度 | 0.01 |
| 湍流尺度/mm | 1 |
| 模型表面、其他壁面 地面 | 无滑移壁面 | 固定 |
| 滑移地面速度/ $\left( {\mathrm{{km}}/\mathrm{h}}\right)$ | 120 |
), ArticleFig(id=1154016977694744976, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=CN, label=表 1, caption=
边界条件设置, figureFileSmall=null, figureFileBig=null, tableContent=
| 计算域边界名称 | 边界条件 | 设定值 |
| 计算域入口 | 速度入口/ $\left( {\mathrm{{km}}/\mathrm{h}}\right)$ | 120 |
| 湍流强度 | 0.01 |
| 湍流尺度/mm | 1 |
| 计算域出口 | 压力出口/Pa | 0 |
| 湍流强度 | 0.01 |
| 湍流尺度/mm | 1 |
| 模型表面、其他壁面 地面 | 无滑移壁面 | 固定 |
| 滑移地面速度/ $\left( {\mathrm{{km}}/\mathrm{h}}\right)$ | 120 |
), ArticleFig(id=1154016977753465233, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 试验设备 | 状态 |
| 1 | 中央移动带 | 打开 |
| 2 | 车轮移动带 | 打开 |
| 3 | 切向吹气系统 | 打开 |
| 4 | 喷口边界层控制系统 | 打开 |
| 5 | 天平边界层控制系统 | 打开 |
), ArticleFig(id=1154016977807991186, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=CN, label=表 2, caption=
风洞试验设备状态, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 试验设备 | 状态 |
| 1 | 中央移动带 | 打开 |
| 2 | 车轮移动带 | 打开 |
| 3 | 切向吹气系统 | 打开 |
| 4 | 喷口边界层控制系统 | 打开 |
| 5 | 天平边界层控制系统 | 打开 |
), ArticleFig(id=1154016977862517139, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 湍流计算模型 | 仿真计算结果 | 风洞试验结果 | 相对误差 |
| Realizable $k - \varepsilon$ | 0.985 | | 1.50 |
| | 1 | |
| SST $k - \omega$ | 0.974 | | 2.60 |
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基础车型CFD仿真结果与试验结果对比, figureFileSmall=null, figureFileBig=null, tableContent=
| 湍流计算模型 | 仿真计算结果 | 风洞试验结果 | 相对误差 |
| Realizable $k - \varepsilon$ | 0.985 | | 1.50 |
| | 1 | |
| SST $k - \omega$ | 0.974 | | 2.60 |
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| 方案 | 长度/mm | 高度/mm | 仿真 | 试验 |
| 1 | 1150 | 10 | 0 | 0 |
| 2 | 1150 | 20 | -0.71% | -0.54% |
| 3 | 1150 | 30 | 0.50% | 0.94% |
| 4 | 1150 | 40 | 1.29% | 1.56% |
| 5 | 1150 | 50 | 1.61% | 1.74% |
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前保险杠下部阻风板方案仿真及试验结果对比, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案 | 长度/mm | 高度/mm | 仿真 | 试验 |
| 1 | 1150 | 10 | 0 | 0 |
| 2 | 1150 | 20 | -0.71% | -0.54% |
| 3 | 1150 | 30 | 0.50% | 0.94% |
| 4 | 1150 | 40 | 1.29% | 1.56% |
| 5 | 1150 | 50 | 1.61% | 1.74% |
), ArticleFig(id=1154016978093203863, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 方案描述 | 仿真减阻率/% | 试验减阻率/% |
| 1 | 前保险杠下部阻风板 | 0.71 | 0.54 |
| 2 | 前轮阻风板斜梯 | 1.30 | 1.09 |
| 3 | 副车架后部导流板 | 1.49 | 1.14 |
| 4 | 底盘中部导流板 | 2.17 | 1.90 |
| 5 | 尾部消音器形状优化 | 4.08 | 2.99 |
| 6 | 组合方案 | 6.79 | 5.16 |
), ArticleFig(id=1154016978151924120, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=CN, label=表 5, caption=
减阻方案统计, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 方案描述 | 仿真减阻率/% | 试验减阻率/% |
| 1 | 前保险杠下部阻风板 | 0.71 | 0.54 |
| 2 | 前轮阻风板斜梯 | 1.30 | 1.09 |
| 3 | 副车架后部导流板 | 1.49 | 1.14 |
| 4 | 底盘中部导流板 | 2.17 | 1.90 |
| 5 | 尾部消音器形状优化 | 4.08 | 2.99 |
| 6 | 组合方案 | 6.79 | 5.16 |
), ArticleFig(id=1154016978219032985, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案 | 升力/N | 升力系数 | 前轴升力系数 | 后轴升力系数 |
| 基础车型 | 175.0 | 0.1123 | 0.1089 | 0.003 4 |
| 前保险杠下部阻风板 | 142.1 | 0.091 8 | 0.088 2 | 0.0037 |
| 前轮阻风板斜梯 | 195.2 | 0.125 3 | 0.0995 | 0.025 7 |
| 副车架后部导流板 | 174.2 | 0.1119 | 0.1077 | 0.004 1 |
| 底盘中部导流板 | 89.3 | 0.0574 | 0.1172 | -0.0598 |
| 尾部消音器形状优化 | 247.1 | 0.1584 | 0.1096 | 0.0487 |
| 组合方案 | 138.0 | 0.0887 | 0.091 1 | -0.010 7 |
), ArticleFig(id=1154016978269364634, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1154016882425324109, language=CN, label=表 6, caption=
减阻方案对应的升力特性风洞测试结果, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案 | 升力/N | 升力系数 | 前轴升力系数 | 后轴升力系数 |
| 基础车型 | 175.0 | 0.1123 | 0.1089 | 0.003 4 |
| 前保险杠下部阻风板 | 142.1 | 0.091 8 | 0.088 2 | 0.0037 |
| 前轮阻风板斜梯 | 195.2 | 0.125 3 | 0.0995 | 0.025 7 |
| 副车架后部导流板 | 174.2 | 0.1119 | 0.1077 | 0.004 1 |
| 底盘中部导流板 | 89.3 | 0.0574 | 0.1172 | -0.0598 |
| 尾部消音器形状优化 | 247.1 | 0.1584 | 0.1096 | 0.0487 |
| 组合方案 | 138.0 | 0.0887 | 0.091 1 | -0.010 7 |
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