| 1. | Vertical hydrodynamic force
铃动力浮力 |
| 2. | Being the nonlinear function of attack angle , the hydrodynamic forces acting upon the submersible are determined by a towing tank test
作用于潜水器上的水动力系攻角的非线性函数，可用拖曳水池试验加以测定。 |
| 3. | Based on these experimental values , the hydrodynamic forces are identified by a general regression neural network ( grnn ) over a wide range of attack angles
利用这些试验值， grnn神经网络方法可以辨识出大攻角范围内的水动力函数。 |
| 4. | The interaction of wave with multiple porous circular cylinders is analyzed also . the approximate value of the hydrodynamic force act on each porous cylinder can be calculated
在此基础上进而分析了波浪对可渗透圆柱群的相互作用，推导出了作用于直线排列的群柱中单一柱体上的波浪力的近似解。 |
| 5. | In this paper , the theory of slender bodies was used to calculate hydrodynamic forces and to numerically simulate the underwater trajectory of supercaviting bodies , the motion stability of supercaviting bodies was analyzed , too
本文应用细长体理论计算航行体在超空泡状态下的流体动力，成功类比了超空泡状态下的航行体水下弹道。 |
| 6. | Others that related the ancient times climatic change , for instance ancient - river hydrodynamic force condition and so on , also are the important contents that we understand the ancient times environmental variation rule
其他与古代气候变化相关的变化，比如古土壤中稀土元素和微量元素的含量，古河流的水动力状况等，也都是我们了解古代环境变化规律的重要内容。 |
| 7. | For hydrodynamic force , the oil - gas would migrate at vertical and lateral , and accumulate at suit traps . at the same time , for hydrogeology gyrations , petroleum would periodic migrate and ringed distribute . therefore , ground fluid is at different hydrodynamic systems
同时，由于古水文地质的旋回性导致同一流体动力体系内不同流体动力系统的油气一致阶段式运移，并形成一个以凹陷为单元阶梯式一环带状的油气分布规律。 |
| 8. | The work covered in this thesis is hoped to shorten the gaps to the world advanced level in prediction of hydrodynamic forces on maneuvering ships . due to the complexity of ship maneuvering viscous flows , the computational methods for such flows are nevertheless in its infant , t
本文在研究基础薄弱、研究条件差的情况下对船舶操纵粘性流动及水动力计算进行了有益的探索，取得了一定的成功，但仍有许多问题值得进一步探讨和研究。 |
| 9. | The electro - hydraulic load simulator of fin stabilizer is physical half - objective simulative system . its function is to simulate , under laboratory conditions , different kinds of hydrodynamic force exerted on the fin stabilizer so as to detect technical performance index of the driving system of fin stabilizer . thus the classical self - destructing all - objective experiment will be converted to half - objective forecasting experiment in laboratory to achieve the aims such as shortening lead time , saving developing funds , enhancing reliability and success proportion
减摇鳍电液负载仿真台是一种半实物物理仿真系统，其功能是在实验室的条件下，模拟船舶航行过程中减摇鳍所受的海浪水动力载荷谱，从而检测减摇鳍驱动系统的技术性能指标，将经典的自破坏全实物实验转化为在实验室条件下的半实物预测性实验，以达到缩短研制周期、节约研制经费、提高可靠性和成功率的目的。 |
| 10. | A multi - block incompressible viscous flow solver has been developed that can be applied to simulation of a variety of ship maneuvering related flows and calculation of hydrodynamic forces . validation and verification of the solution procedure are carried out on several model problems with good agreement to experimental and numerical results . the present block - structured viscous flow solver is based on solving the reynolds - averaged navier - stokes ( rans ) equations with a second - order cell - centered finite volume method ( fvm ) on non - staggered grids
本文即在这种背景下，瞄准船舶操纵水动力预报方面的国际前沿和热点课题，通过对现代船舶粘性流计算方法的研究，自主开发了一个船舶操纵粘性流求解器，并将所开发的求解器成功地应用于一系列和船舶操纵问题相关的粘性流动与水动力计算，得到了令人满意的结果。 |
