the valve structure is optimized to meet the need, which makes it have such advantages: ( 1) smaller vortex area and faintish vortex intensity, so the vibration of vortex is controlled effectively;
控制旋涡,减小旋涡区,减小涡的强度;
a numerical model for duct fan vortex intensity
涵道螺旋桨桨叶涡强度分布计算
Arrangements of fairing are also studied and the suppression effects are embodied by comparison to the analysis results of the bare riser. Calculations indicate that the intensity of vortex shedding is destroyed greatly.
本文分析了一系列不同的整流罩布置方式并与光管计算结果加以比较。计算结果显示,在整流罩的作用下,涡激振动的程度大大降低。
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