华南理工大学学报（自然科学版）
華南理工大學學報（自然科學版）
화남리공대학학보（자연과학판）
JOURNAL OF SOUTH CHINA UNIVERSITY OF TECHNOLOGY(NATURAL SCIENCE EDITION)
2015年
2期
96-101
,共6页
厢式运输车%气膜减阻%摩擦阻力%计算模型
廂式運輸車%氣膜減阻%摩抆阻力%計算模型
상식운수차%기막감조%마찰조력%계산모형
van%air-film drag reduction%friction resistance%calculation model
针对气膜条件下厢式运输车厢体表面摩擦阻力减小的实验结果，分别提出边界层加厚理论、混合降速理论、边界层加厚－混合降速理论3种理论来研究空气介质中空气膜的减阻机理，建立了气膜条件下厢式运输车厢体表面气流摩擦阻力计算模型，定性对比分析了厢体表面在有气膜和无气膜条件下各自所受到的气流摩擦阻力。结果表明，有气膜时摩擦阻力减小，这一结果与笔者前期的实验研究结果趋于一致，为气膜减阻在厢体表面减阻中的实际应用提供了理论基础。
針對氣膜條件下廂式運輸車廂體錶麵摩抆阻力減小的實驗結果，分彆提齣邊界層加厚理論、混閤降速理論、邊界層加厚－混閤降速理論3種理論來研究空氣介質中空氣膜的減阻機理，建立瞭氣膜條件下廂式運輸車廂體錶麵氣流摩抆阻力計算模型，定性對比分析瞭廂體錶麵在有氣膜和無氣膜條件下各自所受到的氣流摩抆阻力。結果錶明，有氣膜時摩抆阻力減小，這一結果與筆者前期的實驗研究結果趨于一緻，為氣膜減阻在廂體錶麵減阻中的實際應用提供瞭理論基礎。
침대기막조건하상식운수차상체표면마찰조력감소적실험결과，분별제출변계층가후이론、혼합강속이론、변계층가후－혼합강속이론3충이론래연구공기개질중공기막적감조궤리，건립료기막조건하상식운수차상체표면기류마찰조력계산모형，정성대비분석료상체표면재유기막화무기막조건하각자소수도적기류마찰조력。결과표명，유기막시마찰조력감소，저일결과여필자전기적실험연구결과추우일치，위기막감조재상체표면감조중적실제응용제공료이론기출。
According to the friction resistance decrease of van body surface observed by experiments in the presence of air film, three theories, namely the thickened boundary layer theory , the mixed deceleration theory and the thickened boundary layer-mixed deceleration theory , are put forward to explore the mechanism of air-film drag re-duction , and a model to calculate the friction resistance of van body surface in the presence of air film is estab -lished .Then , the friction resistances of van body surface with and without air film are qualitatively compared and analyzed , respectively .The results show that the friction resistance decreases in the presence of air film , which is consistent with the previous experimental results obtained by the authors .This research provides a theoretical foun-dation for the practical application of air-film drag reduction of van body surface .
