水动力性能

• Based on the theories of surface panel method , the mathematical models for the hodong propeller are established in this paper
  本文首先基于面元法理论建立了hudong型螺旋桨水动力性能预报的数学模型，并用对其进行了数值计算。
• In order to improve hydrodynamic performance of a ferrying raft , two hydrofoils are set in the raft ' s wetted hull , which will control the flow field near the wall surface
  摘要为了改善门桥的水动力性能，增设了对近壁面流场进行流动控制的水翼。
• The comparision of the computation result and the experimental data shows that prediction of ka series propeller by surface panel method is feasible
  本文尝试建立一种面元法预报导管螺旋桨水动力性能的方法，为设计导管螺旋桨和研究泵喷射推进装置建立基础。
• The results should be improved by reconsidering the boundary conditions . the research is useful for hydrodynamic calculation of the submerged body by using cfd technique
  本论文的研究为用计算流体动力学( cfd )方法预报潜体的水动力性能打下了一定的基础。
• All of these is the important base of the selecting of turbines , the designing of hydrodynamics performance , and the general designing of marine currents power plant
  首先分析了竖轴可调角直叶水轮机水动力性能计算的基本公式，介绍了诱导速度的两类计算方法。
• First , we calculate the hydrodynamic performance of the caudal fin which is considered as a rigid body using surface panel method . then a detailed analysis is given
  首先把尾鳍视为刚性体，采用面元法计算其水动力性能，详细分析其水动力系数随尾鳍运动参数的变化规律。
• For the kobold horizontal - axis rotor , the hydrodynamic performance is explored and studied gradually . at first , a basic resistance - type method is presented
  对于横轴蹼板式水轮机，本文从流体力学的基本原理出发，对蹼板式水轮机的水动力性能及其计算方法进行了循序渐进的探索和研究。
• In this paper , different computation methods and the hydrodynamic performance of vertical - axis variable - pitch cycloidal ( voith - schneider ) rotor and kobold horizontal - axis rotor are studied
  本文以可调角直叶摆线式水轮机和蹼板式水轮机为对象，研究它们的水动力性能及其理论计算方法。
• This research is useful in predicting of the hydrodynamic performance and in enhancing the prediction precision of the propeller by using high - order surface panel method
  本论文的研究为高阶面元法预报螺旋桨的水动力性能打下了一定的基础，对进一步提高面元法预报的精度具有一定的实用意义。
• This research is useful for hydrodynamic calculation of the ship by using cfd technique and for improving the techniques in prediction and optimum design of swath
  本论文的研究为用cfd方法预报swath船型的水动力性能打下了一定的基础，对提高我国swath船型的开发与设计水平具有一定的实用意义。