It is verified that the design method of free vortex flow is still important in advanced turbine design.
证明了自由涡的设计方法在现代先进涡轮设计中仍占有重要的地位。
The advantage and disadvantage of free vortex flow method are summarized through analyzing the overall design.
通过对整体设计过程的分析，有针对性的总结了自由涡设计方法的优劣。
In the separation space, the outer vortex can be approximately regarded as quasi-free vortex and inner vortex as quasi-forced vortex.
分离空间内时均流场是外侧准自由涡与内侧准强制涡的典型结构。
The contrast of new designed blade with the original one is made in the design of free vortex flow combining with aft-loading profile.
在自由涡与后加载叶型相结合的设计中，对新设计与原设计进行了对比。
The free vortex aerodynamics window is used to be the window of high power laser beam, which takes advantage of the centripetal force of the free vortex motion of fluid.
自由旋涡气动窗口是利用流体微团作自由旋涡运动的离心力来平衡大气与光腔压力差，来作为高能激光束的输出窗口。
In this article the procedures are described for determining free vortex segment properties. Characteristics method is used to design nozzle which produces free vortex segment.
本文提出了确定气动窗口所需自由旋涡气动特性的过程，讨论了特征线方法在非对称超音速喷管设计中的应用，该喷管被用来产生自由旋涡流动。
Then basing on the free-vortex equation, potential equation and stream function of flow are achieved by mathematical analyze, and solving these equations gives flow fields.
从自由涡运动方程出发，推导出管内流场的势函数和流函数方程，获得了管内流场的数学分析解；
The results show that the interaction between a viscous vortex ring and a free surface is different from the inviscid one.
结果表明：由于粘性的存在，使得涡环与自由表面的相互作用与无粘情形相比有许多不同。
Beginning with the prescribed wake model, a Semi Empirical Correction for the vortex core effect on rotor wake is made and free wake calculation is carried out.
首先从预定的广义尾流入手，并引入尖涡涡核作用的半经验修正，对旋翼的自由尾流进行计算分析。
The results show that the most significant feature of turbulent free jet is the intermittently generation, shed of elliptic vortex rings, and once they generate they shed immediately.
研究结果表明：湍流椭圆自由射流的最显著特征是椭圆涡环的间歇产生、脱落，这些涡环一旦产生立即脱落。
The vortex wake and its induced velocity of a helicopter rotor operating near the ground at low forward speeds have been studied using a simplified free wake-ground vortex model.
本文用一简化自由涡模型模拟旋翼尾涡系，用一简单涡模拟地面涡，对近地低速飞行时旋翼尾涡系的畸变及其引起的诱导速度变化作了研究。
The nonlinear free surface boundary condition is considered and the hydrodynamics forces of the hydrofoil near the free surface are calculated by the submerged vortex lattice method.
考虑到非线性的自由液面边界条件，用下潜涡环栅格法求解水翼绕流问题。
The model USES the curved vortex elements on the circular arc as the basic discrete elements for trailed filaments and utilizes the free wake extension to form an adaptive far wake downstream.
该模型采用圆弧涡元作为基本涡元，并依据自由尾迹涡线确定远尾迹形状以使远尾迹更接近实际和自由。
Vortex also called left turn, is the axis of rotation happened a self-excited vibration, it is neither has the free vibration characteristics, also do not belong to the type of forced vibration.
涡动又称甩转，是旋转轴发生的一种自激振动，它既不具有自由振动的特征，也不属受迫振动的类型。
Moreover, flow distribution was also calculated by free-vortex flow pattern and compared with that by iso-reaction coefficient flow pattern. Relative evaluation …
同时还对自由涡流型进行了计算，把这两种流型的计算结果作了比较，并对这两种流型的风扇进行了评价。
The vortex structures under some instances are analyzed. The difference with time-mean velocity field and free shear layer is discussed, and a reasonable description of the topological...
本文分析了各种情况下旋涡结构特点、讨论了与时均流场和自由剪切层的区别，还给出了二维后向台阶流的拓扑结构。
It is found that: the center of the cyclone separation is a forced upward rotation vortex; the external is a quasi-free downward rotation vortex.
研究发现：旋风分离器的中心为向上旋转的强制涡，外部为向下旋转的准自由涡。
Vortex diodes pump is a new-type maintenance-free equipment with no moving parts for pumping hazardous liquids.
涡流二极管泵输送设备是一种新型的用于高危物料输送的无运动部件的免维修输送系统。
A model is developed for the calculation of the initial rotor tip vortex core radius aiming at eliminating the empirical parameters of the tip vortex in rotor free-vortex wake analysis.
建立了一个旋翼桨尖涡初始涡核半径计算模型，用于消除旋翼自由尾迹分析中桨尖涡涡核半径依靠经验设定的现状。
Based on the vortex theory, lifting surface method is used to establish wind turbine performance prediction model with rigid cylinder wake model, prescribed wake model and free-wake method.
采用基于涡系理论的模型建立刚性圆柱尾迹和预定尾迹模型的升力面法预测程序，对无偏航情况的风力机性能进行了预测。
Byemploying a vortex structure for cooling, the pump is free of splashing, low in temperature rising and durable for long-term operation.
采用漩涡式方法进行吸收冷却，具有无飞溅、温升低、保证长时间使用等特点。
Byemploying a vortex structure for cooling, the pump is free of splashing, low in temperature rising and durable for long-term operation.
采用漩涡式方法进行吸收冷却，具有无飞溅、温升低、保证长时间使用等特点。
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