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Variation of Average Velocity Through the Transition Pipes at Cross Sections Perpendicular to the Axis
Transition Pipes Area and Velocity Variation Linear Transition
2009/10/15
Transition ducts are used in water channel and wind tunnels, turbomachinery, especially aircraft air intakes and power station ducting systems. Due to significant energy losses, flow through these duc...
VELOCITY MEASUREMENTS AND FLOW STRUCTURE VISUALIZATIONS OF A SELF-SUSTAINED OSCILLATING JET
self-sustained oscillation whistler nozzle impinging jet
2009/10/13
The purpose of this study is the experimental investigation on self-sustained oscillating jet characteristics. Main aim was to describe vortical structures of turbulent air jet issuing from the nozzle...
龙眼压差通风预冷装置风速控制与能耗分析（Air Velocity Control and Energy Analysis in Forced-air Pre-cooling Device of Longan）
龙眼 压差通风预冷 能耗
2009/5/22
针对龙眼的物理特性，设计了一套龙眼压差通风预冷试验装置。根据果蔬压差预冷7/8时间特性，通过试验得到了龙眼包装箱压差与风速关系以及异步电动机频率与风速关系。进一步研究龙眼压差预冷装置能耗与风速关系可知，对于龙眼果实，较小的风速预冷能耗较小，预冷时间较长；当预冷时间按要求设定时，在风机允许范围内控制风速按一定规律递增，直到龙眼终止温度，可以在设定时间内完成龙眼预冷，且能耗最小。