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Aerodynamic performance calculation based finite blade vortex theory and aerodynamic optimization design based genetic algorithms.

基于有限片桨叶涡流理论的气动性能计算和采用遗传优化算法的优化设计。

The research result fill the blank spaces on the helical vortex theory, and also builds a bridge between the theoretic study and engineering application.

对工程中其它螺旋涡流场的解析计算，同样可以利用本文的理论结果和分析思路。

By the analytical calculation method, the paper focuses on researching systematically flow field induced by helical vortex on aspects of theory and application.

本文主要运用解析法，从理论和应用两个方面对螺旋集中涡诱导流场问题进行了系统研究。

The nonuniform distribution of induced velocity on the rotor disk derived from the generalized vortex theory is taken into account.

诱导速度在桨盘处的分布采用广义涡流理论所导的公式。离散突风模型为规范所要求的正弦平方型。

According to the design procedure of wind turbine blades, computing blade parameters based on the vortex theory, a kind of new program design method is offered to display the section and 3D model of wind turbine blades.

按照叶片设计的实际过程，在涡流理论设计叶片参数的基础上，提出了一种能在计算机上立体显示叶片截面及结构的设计方法。

The main contents are as follows:Based on the vortex theory and the hydrodynamic basic equations, taking account of the viscosity effect, the expressions of the tangential speed...

主要内容包括：在涡运动理论的基础上，考虑流体的粘性效应，从流体动力学基本方程出发，分析推导了旋流分离器内流体的切向速度和切向应力的分布表达式，定性讨论了旋流分离器外壁的转动对切向速度和切向应力的影响。

In this paper an attempt is made to derive a practical formula for the induced velocity distribution in the lifting rotor disk plane on the basis of the generalized vortex theory.

本文试图根据涡流理论导出的精确公式，通过简化，获得适于工程计算的近似公式。

Meaden later developed the Vortex theory of circles formation.

Meaden后来发展了涡理论界形成。

Based on the theory of vortex dynamics and fluidic impedance, the impacts of pressure-sampling position and joining pipe's frequency response on measured performances of the method were investigated.

应用旋涡动力学和流体阻抗法，分析了取压位置和引压管频率特性因素对该方法测量性能的影响。

Combining with Stokes and Karman Vortex theory, the characteristic of ascendant motion of bubbles with different size was obtained through programming...

同时，结合Stokes和卡门涡理论分析，得到稳定状态下不同尺寸单个气泡的速度变化规律，运动轨迹规律等各种运动特性，并将实验结果与理论进行比较分析来判断其可行性。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。