| 1. | The wave problem is predicted by adopting panel method based on kelvin source for a ship traveling in a uniform flow
摘要采用基于开尔文源的面元法求解航行于均匀流场中的船舶兴波问题。 |
| 2. | Now , most of the design of the sewage is according to gravity flow and we looks on the flow as water flow
目前的污水管道设计大多按重力流考虑,认为其流动状态为均匀流,与清水在明渠中的流动类似。 |
| 3. | In this thesis , the steady performance of ducted propeller in uniform flow is predicted by surface panel method
本文应用基于扰动速度势的低阶面元法，拟计算导管螺旋桨在均匀流场中的定常水动力性能。 |
| 4. | This technique can effectively improve the cavitation performance and resolve the design problem of propeller operating in unsteady flow field
能有效地改善非均匀流场中螺旋桨的空泡性能。解决了非均匀流场中螺旋桨设计问题。 |
| 5. | Sewage pipe flow is hypothesized as single - phase and uniform flow , and we are used to applying the chezy formulas for designing sewer systems
目前的污水管道设计是将污水在管道内的流动视为单相均匀流，主要用谢才( chezy )公式进行水力计算。 |
| 6. | This paper adopts the theoretical method to research the problem on the performance prediction and the design of the propeller operating in ship wake systematically
本文采用理论方法系统地研究了非均匀流场中螺旋桨性能预报和理论设计问题。 |
| 7. | The idea is to define a group of flow primitives such as uniform flow , sinking flow , source flow , vertex flow and then synthesize these flow primitives into a complex flow
该方法定义一组原始流如均匀流、源点流、汇点流、漩涡流等，采用合成的方法合成复杂的水流。 |
| 8. | Experimental result shows that the non - uniform flux of open channel is single - valued corresponding to the opening angle of the plate and water depth in front of the plate , and satisfies the dualistic function
通过试验可知：细长板开启角度、明渠非均匀流流量与板前水深三者单值对应，并满足二元函数的变化关系。 |
| 9. | The unstructured meshes of the global flowfield are made . 3 . the program to solve the six - freedom - of - degree dynamics equation and the kinematics equation of the missile are worked out
由于非均匀流场的气动力干扰作用，其气动力与外挂物单独飞行时有较大的不同，获取分离过程中的气动力数据是解决这一问题的关键和难点。 |
| 10. | When the propeller operates in the spatially non - uniform velocity field behind the ship , the unsteady cavitation on the blades often causes the vibration of ship structure , the propeller noise and the cavitation erosion on the blade
在船尾非均匀流场中工作的螺旋桨，常常由于桨叶上产生了非定常空泡，导致船尾振动和螺旋桨噪声，致使桨叶表面出现空泡剥蚀。 |
