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.
the unsteady lifting surface method was used to calculate the hydrodynamic performance of the fin swimming.
此方法是对定常升力面方法的改进和发展,计算了矩形平板纵摇、垂蕩运动时的水动力性能;
a lifting surface method for predicting hydrodynamic characteristics of a hydrofoil moving beneath the free water surface has been developed.
本文在文献的基础上,进一步提出预测后掠水翼水动力性能的升力面计算方法。
a numerical method is presented for prediction of propeller performance and pressure distribution on blade surface according to lifting surface theory.
本文提供了一种根据升力面理论计算螺旋桨桨叶表面压力分布和螺旋桨性能的数值方法。
the unsteady flow field near the leading edge of an oscillating sweptback wing is obtained by using 3-d subsonic lifting surface theory.
本文应用三元亚音速升力面理论求出了后掠翼前缘附近的流场。
the influence from hub is included in the propeller design by the lifting surface theory.
在升力面理论设计中计及桨毂的影响。
the span wise coherence function of the aerodynamic lifting force in the buffeting response of bridges is analyzed by using the lifting surface theory of airfoils.
利用机翼升力面理论分析了桥梁抖振升力沿跨向的相关函数。
lifting surface method and non-linear vortex lattice method were used for the calculation of propeller and rudder with additional thrust fins respectively.
对螺旋桨与舵附推力鳍分别采用升力面法和非线性涡格法计算。
meanwhile the open water characteristics of the propeller were predicted by using the lifting surface theory. comparison with to experimental data showed that calculation errors are acceptable.
应用升力面方法理论计算螺旋桨切割前后的敞水性能,与试验值的比较表明计算值误差在可接受的范围内。
a kernel function method and the results of computing unsteady load on three-dimensional wings in transonic flow are presented in this paper. the method is based on linearized lifting surface theory.