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塑料薄膜毛管微孔泄流的水力计算
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作者 赵福林 裴国霞 田春元 《内蒙古水利》 1993年第2期28-35,共8页
本文根据塑料薄膜毛管水力学试验成果,提出了针对毛管滴、喷孔孔径很小、流量不大条件下毛管流态的判别及水力计算方法,同时结合试验资料进行验证并给出了计算例题。
关键词 毛管 层流 光滑紊流 粗糙紊流 折减系数(多孔系数)
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Variation of Transition Characteristics in a Wall Jet
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作者 Marie-Francoise Scibilia 《Journal of Thermal Science》 SCIE EI CAS CSCD 2003年第2期167-170,共4页
The characteristics of a laminar wall jet submitted to different configurations have been experimentally explored in order to obtain a better knowledge of transition modifications,In fact different parameters can acce... The characteristics of a laminar wall jet submitted to different configurations have been experimentally explored in order to obtain a better knowledge of transition modifications,In fact different parameters can accelerate or delay the transition using a smooth or rough surface,heated or not,submitted to vibrations or not .In this study,significant effects can be noticed.It has been possible to measure the beginning of growth rates of disturbance amplitude using a wind tunnel and comparing the results with the linear stability theory. 展开更多
关键词 wall jet TRANSITION acoustic vibration heat transfer TURBULENCE roughness.
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