Article(id=1200389586779238558, tenantId=1146029695717560320, journalId=1189645257101713411, issueId=1200389583490896787, articleNumber=null, orderNo=null, doi=10.19822/j.cnki.1671-6329.20230288, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=null, receivedDateStr=null, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1764124779648, onlineDateStr=2025-11-26, pubDate=1725465600000, pubDateStr=2024-09-05, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1764124779648, onlineIssueDateStr=2025-11-26, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1764124779648, creator=13701087609, updateTime=1764124779648, updator=13701087609, issue=Issue{id=1200389583490896787, tenantId=1146029695717560320, journalId=1189645257101713411, year='2024', volume='', issue='9', 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=1764124778864, creator=13701087609, updateTime=1764224976456, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1200809842752475635, tenantId=1146029695717560320, journalId=1189645257101713411, issueId=1200389583490896787, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1200809842752475636, tenantId=1146029695717560320, journalId=1189645257101713411, issueId=1200389583490896787, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=8, endPage=14, ext={EN=ArticleExt(id=1200389586993148064, articleId=1200389586779238558, tenantId=1146029695717560320, journalId=1189645257101713411, language=EN, title=The Aerodynamic Development of an Electric SUV, columnId=null, journalTitle=Automotive Digest, columnName=null, runingTitle=null, highlight=null, articleAbstract=
In order to improve the endurance of the vehicle, with the goal of reducing the vehicle’s wind resistance and optimizing its aerodynamic performance, taking the vehicle’s aerodynamic development process as the starting point, the fluid analysis software STAR-CCM+ is used to simulate the aerodynamic performance of a certain pure electric SUV model. Taking into account the principles of overall aerodynamic design, the definition of styling style, and engineering feasibility, multiple drag reduction optimization schemes are proposed from the perspectives of exterior styling and bottom guard plate. (1) Based on the principle of “front circle”, the airflow in the front bumper area is separated and optimized into a more body fitting surface, reducing the positive pressure and energy dissipation at the front; (2) Based on the “behind rear” principle, effective improvement of the airflow state at the rear end is achieved through tail wing sealing, partial downward pressure on the roof, inward retraction of the side wings in Y direction, partial upward movement of the tail light area, and optimization of the bottom profile of the rear bumper, which increased the negative pressure at the rear and further reduced the overall wind resistance of the vehicle; (3) By optimizing the aerodynamic wheel rims, flattened full coverage bottom guard plates, and other local details, the vortex shape in the wheel cavity area and the flow of bottom airflow are effectively improved, ultimately resulting in a drag reduction rate of over 30% for the SUV. The drag coefficient is controlled within 0.28, effectively reducing the overall drag coefficient of the vehicle, meeting the development needs of vehicle performance, and improving the endurance of the SUV model.
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为了提升汽车续航能力,以降低整车风阻车型、优化空气动力学性能为目标,以整车空气动力学开发流程为切入点,运用流体分析软件STAR-CCM+对某纯电SUV车型进行空气动力学性能仿真,兼顾整车空气动力学设计原则、造型风格定义、工程可行性,从外观造型及底部护板两个方向提出多种降阻优化方案。(1)基于“前圆”原则,将前保险杠区域的气流分离优化成更加贴体流动的型面,降低了前部正压和能量耗散;(2)基于“后方”原则,通过尾翼封堵、顶棚局部下压、侧翼Y向内收、尾灯区域局部上抬及后保险杠底端型面优化方案,有效改善尾部气流流动状态,增大了尾部负压,进一步降低了整车风阻;(3)通过对气动轮辋、平整化的全覆盖式底护板及其他局部细节优化,有效提高了轮腔区域涡流形态及底部气流的流动,最终实现SUV的降阻率超过30%,风阻系数控制在0.28以内,有效降低了整车风阻系数,满足了整车性能的开发需求,提升了该SUV车型的续航能力。
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Z=230 mm处气流速度矢量图对比, figureFileSmall=0K/kOEIdTFZHN+hH6rZk8A==, figureFileBig=qF5B37An5FOL5Gx3zKRANw==, tableContent=null), ArticleFig(id=1200410470827020505, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=EN, label=null, caption=null, figureFileSmall=ZnLDxzRFArL38EJAizrynQ==, figureFileBig=hJd+G6EjR5Qc4ZdcJJpTrg==, tableContent=null), ArticleFig(id=1200410470915100891, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=CN, label=图9, caption=
X=-450 mm处前保险杠外扩方案几何截面对比, figureFileSmall=ZnLDxzRFArL38EJAizrynQ==, figureFileBig=hJd+G6EjR5Qc4ZdcJJpTrg==, tableContent=null), ArticleFig(id=1200410471003181275, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=EN, label=null, caption=null, figureFileSmall=77eTLJ0gcX7fAIdaohMexg==, figureFileBig=NugpyU4un2F4NA35oaC/ew==, tableContent=null), ArticleFig(id=1200410471108038877, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=CN, label=图10, caption=
前保险杠两侧车身表面压力系数对比, figureFileSmall=77eTLJ0gcX7fAIdaohMexg==, figureFileBig=NugpyU4un2F4NA35oaC/ew==, tableContent=null), ArticleFig(id=1200410471191924958, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=EN, label=null, caption=null, figureFileSmall=p1YcFYF1e2k9TWyg2vSH2w==, figureFileBig=3t2ij8pixCvyk27MJTZhjQ==, tableContent=null), ArticleFig(id=1200410471376474335, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=CN, label=图11, caption=
Y=0 mm处优化方案几何截面对比, figureFileSmall=p1YcFYF1e2k9TWyg2vSH2w==, figureFileBig=3t2ij8pixCvyk27MJTZhjQ==, tableContent=null), ArticleFig(id=1200410471460360417, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=EN, label=null, caption=null, figureFileSmall=3kEQFag83txJVwk/MtChEg==, figureFileBig=M6EQP8g4drRVl29P6gYu9w==, tableContent=null), ArticleFig(id=1200410471552635106, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=CN, label=图12, caption=
Y=0 mm处气流速度矢量图对比, figureFileSmall=3kEQFag83txJVwk/MtChEg==, figureFileBig=M6EQP8g4drRVl29P6gYu9w==, tableContent=null), ArticleFig(id=1200410471640715491, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=EN, label=null, caption=null, figureFileSmall=2WUeXRFW4A5rxkcC8o1PdA==, figureFileBig=u+LGGSNDDJSde0Aoam+LmQ==, tableContent=null), ArticleFig(id=1200410471724601573, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=CN, label=图13, caption=
Y=0 mm优化方案几何截面对比, figureFileSmall=2WUeXRFW4A5rxkcC8o1PdA==, figureFileBig=u+LGGSNDDJSde0Aoam+LmQ==, tableContent=null), ArticleFig(id=1200410471875596519, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=EN, label=null, caption=null, figureFileSmall=qeMoE6LKScItaei7dKqqOQ==, figureFileBig=cjzyFHCEsER8mhvxQ1wAGQ==, tableContent=null), ArticleFig(id=1200410471967871209, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=CN, label=图14, caption=
总压力系数为0的等值面, figureFileSmall=qeMoE6LKScItaei7dKqqOQ==, figureFileBig=cjzyFHCEsER8mhvxQ1wAGQ==, tableContent=null), ArticleFig(id=1200410472051757291, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=EN, label=null, caption=null, figureFileSmall=AvuGDWlakuivW6az+zfn0Q==, figureFileBig=lr3b0030VniJYsorWdSJxQ==, tableContent=null), ArticleFig(id=1200410472190169325, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=CN, label=图15, caption=
Z=1 000 mm优化方案几何截面对比, figureFileSmall=AvuGDWlakuivW6az+zfn0Q==, figureFileBig=lr3b0030VniJYsorWdSJxQ==, tableContent=null), ArticleFig(id=1200410472290832623, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=EN, label=null, caption=null, figureFileSmall=NVN7cJHqMDxIRiHje2jGuw==, figureFileBig=WJwIVTUH7qyOKYYYNM/1gw==, tableContent=null), ArticleFig(id=1200410472362135793, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=CN, label=图16, caption=
Z=1 000 mm处气流速度矢量图对比, figureFileSmall=NVN7cJHqMDxIRiHje2jGuw==, figureFileBig=WJwIVTUH7qyOKYYYNM/1gw==, tableContent=null), ArticleFig(id=1200410472437633267, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=EN, label=null, caption=null, figureFileSmall=6BNolcxwmBpfhLPCeo2mGQ==, figureFileBig=KndlDc6iFtM4JUeXHFQF3Q==, tableContent=null), ArticleFig(id=1200410472534102260, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=CN, label=图17, caption=
X=750 mm处优化方案几何截面对比, figureFileSmall=6BNolcxwmBpfhLPCeo2mGQ==, figureFileBig=KndlDc6iFtM4JUeXHFQF3Q==, tableContent=null), ArticleFig(id=1200410472622182646, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=EN, label=null, caption=null, figureFileSmall=IRKAnhkDdOL5Qg5c48rVkg==, figureFileBig=4H0rGUTBAIAbpxF7Sznj/g==, tableContent=null), ArticleFig(id=1200410472706068728, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=CN, label=图18, caption=
总压力系数为0的等值面, figureFileSmall=IRKAnhkDdOL5Qg5c48rVkg==, figureFileBig=4H0rGUTBAIAbpxF7Sznj/g==, tableContent=null), ArticleFig(id=1200410472760594682, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=EN, label=null, caption=null, figureFileSmall=GjfxUZaqvu3EIUulnu6m9w==, figureFileBig=MZOdt6OQzpsbmT9NKkbdUw==, tableContent=null), ArticleFig(id=1200410472857063676, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=CN, label=图19, caption=
Y=0 mm优化方案几何截面对比, figureFileSmall=GjfxUZaqvu3EIUulnu6m9w==, figureFileBig=MZOdt6OQzpsbmT9NKkbdUw==, tableContent=null), ArticleFig(id=1200410472966115582, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=EN, label=null, caption=null, figureFileSmall=nfqJrTh/RZfeFvkQ6SJ6ug==, figureFileBig=nJnBELtwjP3nfPfv5DEiTg==, tableContent=null), ArticleFig(id=1200410473045807360, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=CN, label=图20, caption=
Y=0 mm处气流速度矢量图对比, figureFileSmall=nfqJrTh/RZfeFvkQ6SJ6ug==, figureFileBig=nJnBELtwjP3nfPfv5DEiTg==, tableContent=null), ArticleFig(id=1200410473146470658, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=EN, label=null, caption=null, figureFileSmall=CoJd6RWIBSZG7au6CgQFTg==, figureFileBig=ux2qO3doEew/n9uDEDEb3A==, tableContent=null), ArticleFig(id=1200410473226162436, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=CN, label=图21, caption=
轮辋几何造型优化, figureFileSmall=CoJd6RWIBSZG7au6CgQFTg==, figureFileBig=ux2qO3doEew/n9uDEDEb3A==, tableContent=null), ArticleFig(id=1200410473305854214, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=EN, label=null, caption=null, figureFileSmall=HJXbv/StprOnxnOy15/BAw==, figureFileBig=MBKHWEZWLLT45WqPEB6QTw==, tableContent=null), ArticleFig(id=1200410473398128904, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=CN, label=图22, caption=
Z=0 mm处优化方案几何截面对比, figureFileSmall=HJXbv/StprOnxnOy15/BAw==, figureFileBig=MBKHWEZWLLT45WqPEB6QTw==, tableContent=null), ArticleFig(id=1200410473465237770, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=EN, label=null, caption=null, figureFileSmall=PSa7OVXzHc/MKCrY2WhOLA==, figureFileBig=iMeeXJdTs2/SDuS83b11zw==, tableContent=null), ArticleFig(id=1200410474622865676, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=CN, label=图23, caption=
Z=0 mm轮辋气流速度矢量图对比, figureFileSmall=PSa7OVXzHc/MKCrY2WhOLA==, figureFileBig=iMeeXJdTs2/SDuS83b11zw==, tableContent=null), ArticleFig(id=1200410474702557454, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=EN, label=null, caption=null, figureFileSmall=CDxTsTm/t89b/yckp4vRcQ==, figureFileBig=fB+qRaggPD1Bn1ocOx5OWA==, tableContent=null), ArticleFig(id=1200410474761277712, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=CN, label=图24, caption=
在研及竞品车型底护板设计形式, figureFileSmall=CDxTsTm/t89b/yckp4vRcQ==, figureFileBig=fB+qRaggPD1Bn1ocOx5OWA==, tableContent=null), ArticleFig(id=1200410474840969490, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=EN, label=null, caption=null, figureFileSmall=7uegQUJdPIH5Jw3qbWKT0w==, figureFileBig=BOH1YoSyCiO609hUw0YqWg==, tableContent=null), ArticleFig(id=1200410474903884052, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=CN, label=图25, caption=
Y=0 mm底部气流速度矢量图对比, figureFileSmall=7uegQUJdPIH5Jw3qbWKT0w==, figureFileBig=BOH1YoSyCiO609hUw0YqWg==, tableContent=null), ArticleFig(id=1200410474979381525, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 造型区域 | △Cd/×10-3 |
| 前保险杠两侧 | 2~15 |
| 接近角 | 1~5 |
| 机盖前沿 | 1~5 |
| A柱 | 1~5 |
| 机盖与前风挡角度 | 1~4 |
| 后视镜 | 8~15 |
| 后风挡角度 | 4~8 |
| 后保险杠 | 2~6 |
| 离去角 | 1~3 |
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外造型对整车风阻的影响
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| 造型区域 | △Cd/×10-3 |
| 前保险杠两侧 | 2~15 |
| 接近角 | 1~5 |
| 机盖前沿 | 1~5 |
| A柱 | 1~5 |
| 机盖与前风挡角度 | 1~4 |
| 后视镜 | 8~15 |
| 后风挡角度 | 4~8 |
| 后保险杠 | 2~6 |
| 离去角 | 1~3 |
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| 轮辋造型 | a | b | c |
| 镂空比/% | 25.5 | 4.4 | 6.5 |
| 降阻率/% | | 0.8 | 2.4 |
), ArticleFig(id=1200410475239428376, tenantId=1146029695717560320, journalId=1189645257101713411, articleId=1200389586779238558, language=CN, label=表2, caption=
轮辋的镂空比与降阻率
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| 轮辋造型 | a | b | c |
| 镂空比/% | 25.5 | 4.4 | 6.5 |
| 降阻率/% | | 0.8 | 2.4 |
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| 优化方案描述 | 降阻率 |
| 机盖前端倒圆角 | 0.4 |
| 前保险杠翻边及其下导流圆滑过渡 | 0.8 |
| 车身侧面外扩 | 0.8 |
| A柱加宽及饱满度 | 0.8 |
| 门槛下饰板末端外扩 | 1.2 |
| 尾翼末端型面尖角化 | 1.6 |
| 前/后轮眉型面内收 | 0.8 |
| 护板安装孔开槽形式 | 0.4 |
| 前保险杠下护板两侧反凹设计 | 0.4 |
| 后保险杠护板两侧导流筋 | 0.4 |
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其他位置优化方案及降阻率 %
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| 优化方案描述 | 降阻率 |
| 机盖前端倒圆角 | 0.4 |
| 前保险杠翻边及其下导流圆滑过渡 | 0.8 |
| 车身侧面外扩 | 0.8 |
| A柱加宽及饱满度 | 0.8 |
| 门槛下饰板末端外扩 | 1.2 |
| 尾翼末端型面尖角化 | 1.6 |
| 前/后轮眉型面内收 | 0.8 |
| 护板安装孔开槽形式 | 0.4 |
| 前保险杠下护板两侧反凹设计 | 0.4 |
| 后保险杠护板两侧导流筋 | 0.4 |
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