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- The Prandtl mixing length theory was corrected and redefi ned and the distribution function of air velocity in tunnel derived by the autho r, and the function is used as a theoretical foundation to study ventilation proc ess in tunnel. 笔者修正并重新定义了普朗特混合长度理论,推导出巷道中风流速度的分布函数,并将该函数用作研究巷道通风过程的理论基础。
- Based on these calculations, the authors analyze the science-practical nature of the Prandtl Mixing Length hypothesis, the momentum-transport theory, the Karman Similarity theory and the Taylor Vorticity Transport theory. 对卡门常数和普朗特混合长度进行了理论计算,并据此分析和论证了普朗特混合长度假说与动量传递理论和卡门关于紊流局部运动相似理论以及泰勒的涡旋传递理论的科学性和实用性。
- prandtl mixing length 普朗特混合长度
- It is well-known that in microscale fluidic mixing is extremely difficult, and requires long mixing time as well as long mixing length. 本研究设计新型鱼脊式微型混合器，在流道底部设置流道规律变化的鱼脊状凹槽结构。
- The multihole nozzle ejector has lower noise and higher entrainment performance than the reference ejector at the ratios of medium and short mixing length. 最佳引射性能的多孔喷管引射器与参考引射器相比,在具有中等和较短混合室长度比时,不仅噪声可显著降低且引射性能亦可得到提高。
- Watanabe, T. and J. Kondo, 1990: The influence of canopy structure and density upon the mixing length within and above vegetation, J. Meteor. Soc. Japan., 68, 227-235. 最后推荐一篇关于冠层模型的文章，比较早，但我觉得很好。没有电子版，有日本气象学会杂志的同学能否做点贡献。
- My walking stick is the same length as yours. 我的拐杖和你拐杖长度一样。
- Don't mix up this pair of synonyms. 别把这两个近义词混淆了。
- This car will turn in its own length. 这种汽车可以在自身长度范围内掉头。
- I arrived at that city at length. 我最终到达了那个城市。
- Don't try mixing it with me-- I've got a gun! 别想跟我打架－－我可有枪。
- He finds it hard to mix at parties. 他感到很难在聚会上与人攀谈。
- This river is ten times the length of that River. 这条河的长度是那条河的十倍。
- She paced out the length of the room. 她用步子测量了房间的长度。
- The old man decided not to mix in politics. 那位老人决定不参与政治。
- He fished a length of string out of his pocket. 他从口袋里掏出一条绳子。
- You spend a ridiculous length of time in the bath. 你洗澡用那麽长时间，真不像话。
- Don't try mixing it with me -- I've got a gun! 别想跟我打架--我可有枪！
- Promotion will go by length of service. 晋升以服务年限为准。
- He measured the length of the room. 他量了房间的长度。
