本文提出了一种鱼形舵定常升力的水动力性能预报的理论预报方法。
The theoretical calculation method about how to predict the hydrodynamic characteristics of Ichthyoid Rudder is proposed in this paper.
在颤振特性分析中所需要的广义气动力是根据亚音速非定常升力面理论，采用马蹄涡—振荡压力偶极子格网法计算的。
The generalized aerodynamic force required in analysis is calculated by using horse shoe vortex— vibrational pressure doublet grid method, based on theory of subsonic unsteady lifting plane.
基于附着流状态下的旋翼非定常翼型气动模型，给出了计算该状态下的翼型非定常升力、阻力和俯仰力矩的数值计算方法。
A numerical method is given to calculate the unsteady lift, pitching moment and drag acting on an airfoil of rotors under attached-flow conditions in a compressible flow.
应用升力面理论涡格法和面元法，建立了拖式吊舱推进器非定常水动力性能的数值计算方法。
Based on potential flow theory, a numerical method is proposed for predicting the steady and unsteady hydrodynamic performances of puller type podded propulsors.
非定常力可以采用面元法或升力面方法计算得到。
Both panel method and lifting surface method can be used to calculate the unsteady force.
本文简要介绍近年来国外进行非定常涡升力实验研究的一些情况，以供开展有关工作的参考。
There is interesting progress abroad in the experimental studies on unsteady vorteX-lift. This paper presents some encouraging information for references.
本文采用升力面理论预报螺旋桨非定常水动力性能及空泡性能。
This paper has adopted the lifting-surface method for the prediction of unsteady hydrodynamic performance and cavitation performance of propeller.
昆虫通过高频扇翅可以产生很大的升力，相关的非定常空气动力学机理及理论逐渐被人们所认识。
Until recently, it has become clear that unsteady mechanism, including high frequency flapping, is necessary for insects to produce enough lift and to keep themselves aloft.
介绍了用于拍动翼的非定常空气动力特性和高升力机理。
The unsteady aerodynamics and the unsteady high-lift mechanisms applied in flapping wings are introduced.
介绍了用于拍动翼的非定常空气动力特性和高升力机理。
The unsteady aerodynamics and the unsteady high-lift mechanisms applied in flapping wings are introduced.
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