SUV電動(dòng)汽車后擾流板開槽對(duì)氣動(dòng)性能的影響研究

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關(guān)鍵詞：SUV電動(dòng)汽車；后擾流板；CFD數(shù)值模擬；阻力系數(shù)；升力系數(shù)中圖分類號(hào)：U469 收稿日期：2025-05-12 DOI： 10.19999/j.cnki.1004-0226.2025.08.014

Study on the Effect of Rear Spoiler Slotting on Aerodynamic Performance of SUV Electric Vehicles

Pan Faxing Sichuan Vocational College of Information Technology，Guangyuan 628ooo，China

Abstract：ThisstudyfocusesonSUVelectricvehiclesandemploysCFDsimulationmethodstoinvestigatetheimpactofrearspoilerslotingonveicleaerodynamicperformance.A1：1thre-dimensionalvehiclemodelwasestablishedwithappropratelydefiedcomputationaldomainsandboundaryconditions，simulatingaerodynamicperformanceundertworearspoilerconfigurations：no-sloted andslotedstructures.Theresultsindicatethatsquaresloting inthrearspoilerdoesnotreducevehicledragorift.Specifically，a 280mm square slot in the middle of the spoiler increased the drag coefficient and lift coefficient by 5.1% and 369.6% ，respectively.For three evenly distributed 140mm square slots，these coefficients rose by 14.2% and 176.1% ，respectively. This is primarily attributed to thesharpgeometric edges ofthe square slots，which easily induce flow separation and increase turbulent energy dissipation.

KeyWords：SUV electric vehicle;Rear spoiler;CFD numerical simulation;Drag coefficient;Liftcoefficient

1前言

近年來，全球能源危機(jī)與環(huán)境污染問題日益加劇，在此背景下，新能源汽車特別是純電動(dòng)汽車（BatteryElectricVehicle，BEV）的研發(fā)與應(yīng)用，成為汽車工業(yè)轉(zhuǎn)型的核心方向。（剩余3629字）