附加装置对厢式货车气动性能影响的试验研究与数值模拟(李莉; 马永坤; 李永卫; 岳建…

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Mhd,e7?-\/@0w0【作者】李莉; 马永坤; 李永卫; 岳建雄; 杜广生 【作者单位】山东大学能源与动力工程学院水利论文.\:YU#E\{

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h7Gdf[E3H0【论文摘要】 本研究通过风洞试验和数值模拟两种方法研究导流罩的减阻作用,分析其对整车气动特性影响的机理,所选用导流罩减小阻力系数达18%左右。通过对比风洞试验数据和模拟计算结果,验证了数值模拟的合理性和准确性。利用数值模拟方法研究了一种容易拆卸的新型气动减阻装置-风挡,在对比风挡和导流罩减阻效果的基础上,研究了风挡对厢式货车外部流场的影响,分析风挡的减阻机理,并对比说明风挡的优越性和不足。在风挡的研究中,为获得最佳的减阻效果,本研究采用正交试验方法研究了高度、宽度和位置三个尺寸影响因素的最佳配比,并得出下述结论:三个因素对减阻效果的影响程度由大到小依次为高度、宽度、位置.研究结果可以为厢式货车的优化设计提供依据。水利论文5A{| P3B9jY

X8U0DO~ _4M0【英文论文摘要】 The mechanism of conducting fluid cover to reduce resistance was researched with experimental study and numerical simulation.The type of conducting fluid cover in this paper has effect of reducing resistance about 18%.The results from the two ways were compared to prove numerical simulation is right on the research.A new aerodynamic attachment named damper plate was researched with the way of numerical simulation.Based on the compare between the two aerodynamic attachments,this paper analyzed the mechanism of damper plate.Orthogonal experimental design method was used to gain the best effect of reducing resistance.This paper studied three influencing factors of the aerodynamic attachment:height,width and location.The conclusion is that the influencing effect of three factors is height,width and location in turn.The research results can render important reference for aerodynamic shape designing of van-body truck.

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]U)o'Y`sE2r0【论文关键词】 厢式货车; 数值模拟; 导流罩; 风挡; 正交试验水利论文7uMJs&wYyR
【英文论文关键词】 Panel van; Numerical simulation; Conducting fluid cover; Damper plate; Orthogonal experimental design method

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TAG: 数值模拟 岳建 李莉 李永卫 马永坤
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