Article(id=1195402183375106996, tenantId=1146029695717560320, journalId=1189621681917173762, issueId=1195402179973526439, articleNumber=null, orderNo=null, doi=10.19620/j.cnki.1000-3703.20241010, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=null, receivedDateStr=null, revisedDate=1736956800000, revisedDateStr=2025-01-16, acceptedDate=null, acceptedDateStr=null, onlineDate=1762935690015, onlineDateStr=2025-11-12, pubDate=1750694400000, pubDateStr=2025-06-24, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1762935690015, onlineIssueDateStr=2025-11-12, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1762935690015, creator=13701087609, updateTime=1762935690015, updator=13701087609, issue=Issue{id=1195402179973526439, tenantId=1146029695717560320, journalId=1189621681917173762, year='2025', volume='', issue='6', pageStart='1', pageEnd='62', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1762935689204, creator=13701087609, updateTime=1762938972759, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1195415952272699544, tenantId=1146029695717560320, journalId=1189621681917173762, issueId=1195402179973526439, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1195415952272699545, tenantId=1146029695717560320, journalId=1189621681917173762, issueId=1195402179973526439, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=54, endPage=62, ext={EN=ArticleExt(id=1195402183563850678, articleId=1195402183375106996, tenantId=1146029695717560320, journalId=1189621681917173762, language=EN, title=Analysis on Aerodynamic Drag Reduction of Vehicle Wheel Deflector Based on ASA Optimization Algorithm, columnId=null, journalTitle=Automobile Technology, columnName=null, runingTitle=null, highlight=null, articleAbstract=
In order to optimize the underbody flow field of vehicle efficiently and reduce aerodynamic drag, this paper takes a electric vehicle as the research object, and proposes a multivariate joint global optimization method. Firstly, considering the influence of RPR fixturess, the method which combines CFD simulation and wind tunnel test is applied to verify the effectiveness of the initial optimization scheme and the reliability of the analysis method; Then, based on DOE, surrogate model and ASA algorithm,two optimization schemes are used to reduce aerodynamic drag: optimization of front wheel deflector, and joint optimization of front and rear wheel deflector. Finally, wind tunnel tests are conducted for verification. The test results show that, multivariate optimization of front wheel deflector has the best drag reduction effect,the drag coefficient of the optimal scheme is reduced by 5.5% compared to the original model.
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为高效优化汽车底部流场和降低整车气动阻力,本文以某纯电车型为研究对象,提出一种多变量联合全局寻优方法。首先,考虑车辆限位装置夹具的影响,应用计算流体动力学仿真和风洞试验相结合的方法,验证初始方案的有效性和分析方法的可靠性;然后,基于试验设计、代理模型和自适应模拟退火算法,应用两种优化方案降阻:前轮阻风板寻优和前后轮阻风板联合寻优;最后进行风洞试验验证。试验结果表明,前轮阻风板多变量寻优降阻效果最佳,较原模型降阻5.5%。
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阻风板Y向中截面速度云图, figureFileSmall=k2qvTEAJgiKUAQLFGX5ddw==, figureFileBig=cWBfyt43W5qdZqBuxeuvnA==, tableContent=null), ArticleFig(id=1195414810750927289, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=EN, label=null, caption=null, figureFileSmall=kZF/fEozDSlrmcKjYYIWOQ==, figureFileBig=MhGbPkHF+YE/CxDPz+a7OA==, tableContent=null), ArticleFig(id=1195414810805453242, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=CN, label=图8, caption=
后轮腔Z=0.05 m截面速度云图, figureFileSmall=kZF/fEozDSlrmcKjYYIWOQ==, figureFileBig=MhGbPkHF+YE/CxDPz+a7OA==, tableContent=null), ArticleFig(id=1195414810868367803, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=EN, label=null, caption=null, figureFileSmall=uku0DMi8cUqgQbKL8HB1NQ==, figureFileBig=FOO18tPeTYONVlBei/1TqA==, tableContent=null), ArticleFig(id=1195414810927088060, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=CN, label=图9, caption=
后轮腔压力系数云图, figureFileSmall=uku0DMi8cUqgQbKL8HB1NQ==, figureFileBig=FOO18tPeTYONVlBei/1TqA==, tableContent=null), ArticleFig(id=1195414810981614013, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=EN, label=null, caption=null, figureFileSmall=Uv9jQbczR/CXhvqb9IdDnQ==, figureFileBig=OzcBE0ovW54tPG04666Hig==, tableContent=null), ArticleFig(id=1195414811086471614, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=CN, label=图10, caption=
RPR夹具示意, figureFileSmall=Uv9jQbczR/CXhvqb9IdDnQ==, figureFileBig=OzcBE0ovW54tPG04666Hig==, tableContent=null), ArticleFig(id=1195414811145191871, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=EN, label=null, caption=null, figureFileSmall=DgtU/CqBkfU6qaZ8Cr9qew==, figureFileBig=GF1sp+tWkH4RUlA7cERfaw==, tableContent=null), ArticleFig(id=1195414811212300736, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=CN, label=图11, caption=
后轮阻风板初始方案布置, figureFileSmall=DgtU/CqBkfU6qaZ8Cr9qew==, figureFileBig=GF1sp+tWkH4RUlA7cERfaw==, tableContent=null), ArticleFig(id=1195414811283603905, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=EN, label=null, caption=null, figureFileSmall=xCXyzm2Nbl4KNDx+JCsgmw==, figureFileBig=eX0SlRAWBe8A6ib10LQRiQ==, tableContent=null), ArticleFig(id=1195414811338129858, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=CN, label=图12, caption=
阻力系数累积力发展曲线, figureFileSmall=xCXyzm2Nbl4KNDx+JCsgmw==, figureFileBig=eX0SlRAWBe8A6ib10LQRiQ==, tableContent=null), ArticleFig(id=1195414811392655811, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=EN, label=null, caption=null, figureFileSmall=EYaitINHJNRpHtM/vUrfmg==, figureFileBig=LVaXTdREy0T9gC+GTlhEJw==, tableContent=null), ArticleFig(id=1195414811451376068, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=CN, label=图13, caption=
后轮腔压力系数云图, figureFileSmall=EYaitINHJNRpHtM/vUrfmg==, figureFileBig=LVaXTdREy0T9gC+GTlhEJw==, tableContent=null), ArticleFig(id=1195414811514290629, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=EN, label=null, caption=null, figureFileSmall=GGhbc6EEqcbvtYI61gZwVg==, figureFileBig=oC+GEO7m3JnwfI2udl33xQ==, tableContent=null), ArticleFig(id=1195414811568816582, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=CN, label=图14, caption=
风洞试验现场图, figureFileSmall=GGhbc6EEqcbvtYI61gZwVg==, figureFileBig=oC+GEO7m3JnwfI2udl33xQ==, tableContent=null), ArticleFig(id=1195414811627536839, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=EN, label=null, caption=null, figureFileSmall=blOaTs0iV51u6Vhxo6ZrrA==, figureFileBig=DKh08g7Yml48ZqINGb4uRQ==, tableContent=null), ArticleFig(id=1195414811686257096, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=CN, label=图15, caption=
设计变量定义示意图, figureFileSmall=blOaTs0iV51u6Vhxo6ZrrA==, figureFileBig=DKh08g7Yml48ZqINGb4uRQ==, tableContent=null), ArticleFig(id=1195414811744977353, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=EN, label=null, caption=null, figureFileSmall=6ZR2DqUTkVF9c9XdKSGsFw==, figureFileBig=1jv4XU71gikLOo/lYo2glA==, tableContent=null), ArticleFig(id=1195414811799503306, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=CN, label=图16, caption=
样本点空间分布情况, figureFileSmall=6ZR2DqUTkVF9c9XdKSGsFw==, figureFileBig=1jv4XU71gikLOo/lYo2glA==, tableContent=null), ArticleFig(id=1195414811849834955, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=EN, label=null, caption=null, figureFileSmall=/eJ+l9bDX1JozQgF9DZY2g==, figureFileBig=hMpee2cI5YjUMXPxlNYKxA==, tableContent=null), ArticleFig(id=1195414811904360908, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=CN, label=图17, caption=
设计变量及其响应值, figureFileSmall=/eJ+l9bDX1JozQgF9DZY2g==, figureFileBig=hMpee2cI5YjUMXPxlNYKxA==, tableContent=null), ArticleFig(id=1195414811958886861, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=EN, label=null, caption=null, figureFileSmall=zq3CPbnQtooDCjNt6l2+1g==, figureFileBig=I8gj+kArUnK0qUmZy+Dw7A==, tableContent=null), ArticleFig(id=1195414812017607118, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=CN, label=图18, caption=
Pareto图, figureFileSmall=zq3CPbnQtooDCjNt6l2+1g==, figureFileBig=I8gj+kArUnK0qUmZy+Dw7A==, tableContent=null), ArticleFig(id=1195414812072133071, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=EN, label=null, caption=null, figureFileSmall=PeqUUhWVXh2+c2g36DI9Ag==, figureFileBig=yIORNi3wCQ+YHE3sMyowog==, tableContent=null), ArticleFig(id=1195414812135047632, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=CN, label=图19, caption=
主效应图, figureFileSmall=PeqUUhWVXh2+c2g36DI9Ag==, figureFileBig=yIORNi3wCQ+YHE3sMyowog==, tableContent=null), ArticleFig(id=1195414812193767889, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=EN, label=null, caption=null, figureFileSmall=vBk62FSnmN6XCVDYRZfhKw==, figureFileBig=/L17Z2Oga69488ymessPNQ==, tableContent=null), ArticleFig(id=1195414812256682450, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=CN, label=图20, caption=
Kriging模型散点图, figureFileSmall=vBk62FSnmN6XCVDYRZfhKw==, figureFileBig=/L17Z2Oga69488ymessPNQ==, tableContent=null), ArticleFig(id=1195414812319597011, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=EN, label=null, caption=null, figureFileSmall=sPnAy/Y4WPNn4NuSbADn6w==, figureFileBig=JfFhPdx7+AyWwE3kQtZHTQ==, tableContent=null), ArticleFig(id=1195414812378317268, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=CN, label=图21, caption=
寻优结果示意图, figureFileSmall=sPnAy/Y4WPNn4NuSbADn6w==, figureFileBig=JfFhPdx7+AyWwE3kQtZHTQ==, tableContent=null), ArticleFig(id=1195414812428648917, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=EN, label=null, caption=null, figureFileSmall=JY2Mmqi29hzhkWMM7z9AiA==, figureFileBig=/ZFYkkum7+PHaD/FfT+ffg==, tableContent=null), ArticleFig(id=1195414812487369174, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=CN, label=图22, caption=
底部速度云图(Z=0.15 m截面), figureFileSmall=JY2Mmqi29hzhkWMM7z9AiA==, figureFileBig=/ZFYkkum7+PHaD/FfT+ffg==, tableContent=null), ArticleFig(id=1195414812546089431, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=EN, label=null, caption=null, figureFileSmall=1A23eBscll5oAOOfdeqsUQ==, figureFileBig=SS29oZj0LWI3uewPzFg2SA==, tableContent=null), ArticleFig(id=1195414812600615384, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=CN, label=图23, caption=
方案试验现场, figureFileSmall=1A23eBscll5oAOOfdeqsUQ==, figureFileBig=SS29oZj0LWI3uewPzFg2SA==, tableContent=null), ArticleFig(id=1195414812655141337, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 加密区域 | 推荐尺寸/mm |
| 格栅、A柱、尾柱、后视镜、后保、行李箱盖、底盘 | 8 |
| 车前及车侧面0.5 m,车后5 m,车高0.5 m区域 | 16 |
| 车前及车侧面1 m,车后8 m,车高1.5 m区域 | 64 |
| 车前及车侧面2 m,车后12 m,车高3.5 m区域 | 128 |
), ArticleFig(id=1195414812718055898, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=CN, label=表1, caption=
加密区网格设置
, figureFileSmall=null, figureFileBig=null, tableContent=
| 加密区域 | 推荐尺寸/mm |
| 格栅、A柱、尾柱、后视镜、后保、行李箱盖、底盘 | 8 |
| 车前及车侧面0.5 m,车后5 m,车高0.5 m区域 | 16 |
| 车前及车侧面1 m,车后8 m,车高1.5 m区域 | 64 |
| 车前及车侧面2 m,车后12 m,车高3.5 m区域 | 128 |
), ArticleFig(id=1195414812776776155, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 关键部位 | 边界名称 | 边界类型 | 设定值 |
| 计算域 | 入口 | 速度入口 | 120 km/h |
| 出口 | 压力出口 | 0 Pa |
| 侧面、顶面、车前后地面区域 | 壁面 | 滑移 |
| 移动带区域 | 壁面 | (120,0,0)km/h |
| 车轮 | 轮胎 | 旋转速度 | (120,0,0)km/h |
| 模型表面 | 其他壁面 | 壁面 | 固定 |
), ArticleFig(id=1195414812839690716, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=CN, label=表2, caption=
边界条件设置
, figureFileSmall=null, figureFileBig=null, tableContent=
| 关键部位 | 边界名称 | 边界类型 | 设定值 |
| 计算域 | 入口 | 速度入口 | 120 km/h |
| 出口 | 压力出口 | 0 Pa |
| 侧面、顶面、车前后地面区域 | 壁面 | 滑移 |
| 移动带区域 | 壁面 | (120,0,0)km/h |
| 车轮 | 轮胎 | 旋转速度 | (120,0,0)km/h |
| 模型表面 | 其他壁面 | 壁面 | 固定 |
), ArticleFig(id=1195414812902605277, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 部件 | 惯性阻力系数/kg·m-4 | 粘性阻力系数/kg·m-4 |
| 散热器 | 161.4 | 524.9 |
| 冷凝器 | 457.6 | 275.3 |
), ArticleFig(id=1195414812969714142, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=CN, label=表3, caption=
冷却模块阻尼特性设置
, figureFileSmall=null, figureFileBig=null, tableContent=
| 部件 | 惯性阻力系数/kg·m-4 | 粘性阻力系数/kg·m-4 |
| 散热器 | 161.4 | 524.9 |
| 冷凝器 | 457.6 | 275.3 |
), ArticleFig(id=1195414813053600223, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案状态 | 壁面y+值 | y+值目标值 |
| 原状态 | 0~224.2 | <300 |
| 前轮阻风板初始方案 | 0~265.2 |
), ArticleFig(id=1195414813124903392, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=CN, label=表4, caption=
壁面y+值分布结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案状态 | 壁面y+值 | y+值目标值 |
| 原状态 | 0~224.2 | <300 |
| 前轮阻风板初始方案 | 0~265.2 |
), ArticleFig(id=1195414813221372385, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案状态 | 整车风阻系数 | 风阻系数变化值 |
| 原状态 | 0.27 | 参考值 |
| 前轮阻风板初始方案 | 0.262 | -0.008 |
), ArticleFig(id=1195414814269948386, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=CN, label=表5, caption=
整车风阻分析结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案状态 | 整车风阻系数 | 风阻系数变化值 |
| 原状态 | 0.27 | 参考值 |
| 前轮阻风板初始方案 | 0.262 | -0.008 |
), ArticleFig(id=1195414814341251555, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案状态 | 整车风阻系数 | RPR影响 |
| 无RPR | 有RPR |
| 原状态 | 0.27 | 0.27 | 0 |
| 前轮阻风板初始方案 | 0.262 | 0.264 | +0.002 |
| 前+后轮阻风板初始方案 | 0.260 | 0.264 | +0.004 |
), ArticleFig(id=1195414814475469284, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=CN, label=表6, caption=
整车风阻分析结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案状态 | 整车风阻系数 | RPR影响 |
| 无RPR | 有RPR |
| 原状态 | 0.27 | 0.27 | 0 |
| 前轮阻风板初始方案 | 0.262 | 0.264 | +0.002 |
| 前+后轮阻风板初始方案 | 0.260 | 0.264 | +0.004 |
), ArticleFig(id=1195414814639047141, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案状态 | 整车风阻系数 | 计算 误差 | 误差 要求 |
| 仿真值 | 试验值 |
| 原状态 | 0.27 | 0.271 | 0.4% | ≤3% |
| 前+后轮阻风板初始方案 | 0.264 | 0.259 | 1.9% |
), ArticleFig(id=1195414814706156006, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=CN, label=表7, caption=
仿真与试验对标结果
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| 方案状态 | 整车风阻系数 | 计算 误差 | 误差 要求 |
| 仿真值 | 试验值 |
| 原状态 | 0.27 | 0.271 | 0.4% | ≤3% |
| 前+后轮阻风板初始方案 | 0.264 | 0.259 | 1.9% |
), ArticleFig(id=1195414814764876263, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 优化部位 | 设计变量 | 变量范围/mm | 目标函数 |
| 前轮阻风板 | 内侧宽度增量w | [5,125] | Cd最小化 |
| 高度增量h | [5,30] |
| 后轮阻风板 | 宽度w1 | [60,160] |
| 高度h1 | [5,30] |
), ArticleFig(id=1195414814836179432, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=CN, label=表8, caption=
设计变量范围
, figureFileSmall=null, figureFileBig=null, tableContent=
| 优化部位 | 设计变量 | 变量范围/mm | 目标函数 |
| 前轮阻风板 | 内侧宽度增量w | [5,125] | Cd最小化 |
| 高度增量h | [5,30] |
| 后轮阻风板 | 宽度w1 | [60,160] |
| 高度h1 | [5,30] |
), ArticleFig(id=1195414814920065513, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案状态 | 设计变量值/mm | 整车风阻系数 | 预测误差/% |
| 预测值 | 仿真值 |
| 方案一最优 | w=38,h=27; w1=80,h1=10 | 0.258 | 0.257 | 0.4 |
| 方案二最优 | w=86,h=10; w1=148,h1=124 | 0.260 | 0.258 | 0.8 |
), ArticleFig(id=1195414814987174378, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=CN, label=表9, caption=
预测结果与计算结果对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案状态 | 设计变量值/mm | 整车风阻系数 | 预测误差/% |
| 预测值 | 仿真值 |
| 方案一最优 | w=38,h=27; w1=80,h1=10 | 0.258 | 0.257 | 0.4 |
| 方案二最优 | w=86,h=10; w1=148,h1=124 | 0.260 | 0.258 | 0.8 |
), ArticleFig(id=1195414815054283243, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案状态 | 整车风阻系数 | 预测误差/% |
| 预测值 | 试验值 |
| 方案一最优 | 0.258 | 0.256 | 0.8 |
| 方案二最优 | 0.26 | 0.259 | 0.4 |
), ArticleFig(id=1195414815129780716, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1195402183375106996, language=CN, label=表10, caption=
预测结果与试验结果对比
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| 方案状态 | 整车风阻系数 | 预测误差/% |
| 预测值 | 试验值 |
| 方案一最优 | 0.258 | 0.256 | 0.8 |
| 方案二最优 | 0.26 | 0.259 | 0.4 |
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