武汉纺织大学学报
武漢紡織大學學報
무한방직대학학보
Journal of Wuhan Institute of Science and Technology
2014年
6期
73-77
,共5页
车内空气品质%数值模拟%甲醛浓度%净化%气流组织
車內空氣品質%數值模擬%甲醛濃度%淨化%氣流組織
차내공기품질%수치모의%갑철농도%정화%기류조직
In-car air Quality%Numerical Simulation%the Formaldehyde Concentration%Purification%Air Flow Organization
在轿车内适当位置安装车载空气净化器可以改善轿车内的空气质量。采用标准κ-ε湍流模型对安装车载空气净化器后所形成的气流组织分布情况进行了数值模拟分析,找到了车载净化器的最佳安装位置。数值模拟结果表明:在送风口,回风口和其它紊流强度较大的地方,其甲醛浓度会明显降低,故而适当加大紊流强度,可有助于甲醛浓度的下降;当车载空气净化器安装在驾驶席的座椅背后时,其甲醛浓度会明显比放在手套箱上面时的浓度低,因此,当车载空气净化器安装驾驶席座椅背后时,可以更有效地提高车内空气品质。
在轎車內適噹位置安裝車載空氣淨化器可以改善轎車內的空氣質量。採用標準κ-ε湍流模型對安裝車載空氣淨化器後所形成的氣流組織分佈情況進行瞭數值模擬分析,找到瞭車載淨化器的最佳安裝位置。數值模擬結果錶明:在送風口,迴風口和其它紊流彊度較大的地方,其甲醛濃度會明顯降低,故而適噹加大紊流彊度,可有助于甲醛濃度的下降;噹車載空氣淨化器安裝在駕駛席的座椅揹後時,其甲醛濃度會明顯比放在手套箱上麵時的濃度低,因此,噹車載空氣淨化器安裝駕駛席座椅揹後時,可以更有效地提高車內空氣品質。
재교차내괄당위치안장차재공기정화기가이개선교차내적공기질량。채용표준κ-ε단류모형대안장차재공기정화기후소형성적기류조직분포정황진행료수치모의분석,조도료차재정화기적최가안장위치。수치모의결과표명:재송풍구,회풍구화기타문류강도교대적지방,기갑철농도회명현강저,고이괄당가대문류강도,가유조우갑철농도적하강;당차재공기정화기안장재가사석적좌의배후시,기갑철농도회명현비방재수투상상면시적농도저,인차,당차재공기정화기안장가사석좌의배후시,가이경유효지제고차내공기품질。
In order to improve the in-car air quality, by installing vehicle purifier to purify the air inside the car, the standard k?εturbulence model is applied to conduct the numerical simulation analysis about the distribution of air flow organization, as vehicle purifier is placed on the different position, and through it the best position for vehicle purifier can be found. Numerical simulation results show that:in the supply air outlet, return air inlet inlet or other places that turbulence intensity is bigger, the concentration of formaldehyde will be significantly reduced, therefore moderately increased turbulence intensity can contribute to decrease the concentration of formaldehyde;when the vehicle purifier is placed behind the driver's seat, the formaldehyde concentration will be significantly lower compared with the situation that the vehicle purifier is placed on top of the glove box, so the vehicle purifier placed in the behind of driver's seat, can more effectively improve the in-car air quality.