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1)  shedding of vortex
涡脱
2)  vortex shedding
旋涡脱落
1.
As the fluid flows over the fiber, the periodic lift produced by asymmetric of vortex shedding forces the fiber to self excited vibration.
以振动纤维栅过滤除尘器中纤维为研究对象 ,通过实验研究结合流体诱发振动的机理分析 ,确定引起纤维振动的主要原因是流体绕流纤维时 ,旋涡脱落的不对称性产生的周期性升力作用于纤维 ,使纤维发生自激振动 ,旋涡脱落的频率与纤维的固有频率产生同步效应时旋涡脱落诱发纤维产生共振·当发生共振时 ,可以根据纳维斯托克斯方程计算出旋涡脱落产生的升力系数和阻力系数
2.
With the vortex shedding within the whole span of the fiber shed at the same frequency at the same time ( Re >40), thus producing the synchronization effect.
在振动纤维栅除尘器中 ,气流绕流纤维时旋涡脱落频率 (Re>4 0 )与纤维的固有频率相近 ,发生同步效应 ,使振动纤维栅中的纤维产生共振响应。
3.
The velocity distribution of flow in the lower plenum of Qinshan Nuclear Power Plant was analyzed,as well as the natural frequencies and the flow-induced vicration of the lower internals in sequence,especially the quantitative analysis of the vortex shedding mechanism.
对秦山核电厂堆芯下腔流场、堆内下部防断支承组件振动特性及全组件的流致振动进行了分析,特别对旋涡脱落致振进行了定量分析。
3)  vortex shedding
涡脱落
1.
Experimental research on the flow characteristics and vortex shedding in the flow around a circular cylinder;
圆柱绕流的流场特性及涡脱落规律研究
2.
Such parameters of flow characteristics are investigated as lift and drag coefficient and vortex shedding frequencies.
计算了圆柱的升阻力系数、尾涡脱落频率等描述绕流问题的主要参量。
3.
The mechanism of combustion oscillation including acoustic resonance induced by vortex shedding is advanced.
根据层燃炉非阻力型冒正压的特点,发展了“微爆燃”理论,提出涡脱落诱导声共振的燃烧振荡机理,并运用该机理对非阻力型正压发生的条件进行了分析。
4)  vortex shedding
涡旋脱落
1.
By using the numerical method proposed by the author for solving the unsteady equations of stream and vorticity functions, the vortex shedding from a circular cylinder and its effects on the heat transfer of mixed convection are simulated.
利用本文作者改进的关于流函数—涡量方程的数值求解方法 ,模拟了混合对流绕圆柱涡旋脱落及对传热的影响 ,得到了雷诺数 Re与格拉肖夫数 Gr双重作用下圆柱尾迹涡型转变的规律 ,并数值研究了存在小扰动的自由来流、圆柱旋转 (γ)及浮力与来流成不同角度 (δ)等因素对旋涡脱落、对传热的影响。
5)  vortex shedding
漩涡脱落
1.
The unsteady vortex shedding phenomena was captured.
本文对钝体火焰驻定器后冷态流场进行了计算,结果表明此混合算法能够捕捉流场中非稳态的漩涡脱落现象。
2.
The near wake is divided by the gap flow into two zones called the primary recirculation zone and the secondary recirculation zone,the vortex shedding in the primary recirculation zone initiates distu.
模拟结果显示,偏向一侧的中缝流将近尾分成主回流区和次回流区,主回流区的漩涡脱落激发扰动,引起近尾的绝对不稳定。
6)  shedding vortex
脱落涡
1.
The tail-edge shedding vortex of an open skewed-swept flow rotor with meridian acceleration is measured at different rotary speed by DPIV measurement technology.
该叶尖脱落涡流动现象具有相似性,随着转速的增大,叶尖涡区和吸力面之间的径向速度差增大,叶尖涡强度随转速增加而增强。
2.
Un-steady numerical results show that the trailing edge shedding vortex and suction surface shedding vortex occur in a two- dimensional compressor cascade.
非定常计算结果表明:在二维扩压流场中存在尾缘脱落涡和吸力面脱落涡两种脱落涡,它们的脱落频率随着冲角和马赫数的变化而变化。
补充资料:脱声脱气
1.失声失气。形容因悲恐话音失常。
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