| 1. | Not all accumulations of hydrocarbons are necessarily the result of hydrodynamics . 并不是所有烃类的储集都必然是水动力的结果。 |
| 2. | Analytical solution to the interaction between linear water waves with a rigid vertical porous cylinder is derived 导出了线性波浪作用于上部可渗透的直立刚性圆柱体上的水动力的解析解。 |
| 3. | It is found out that both depth and forward speed have considerable effects on hydrodynamic coefficients of ship 数值结果显示了水底效应对航行船舶水动力的影响,为进一步研究浅水航行船舶的耐波性提供了基础。 |
| 4. | The method not only brings a new method for the calculation of the hydrodynamics of ship hull , but also provides an interface effect having no sew between the ship computer aided design ( cad ) and ship computational fluid dynamics ( cfd ) 它不仅为船体水动力的研究带来了新的处理方法,而且在船舶计算机辅助设计与船舶流体动力学之间起到了无缝的接口作用。 |
| 5. | Under the hydrodynamitic condition in the outshelf heavy minerals are enriched to a certain extent . they are of horablede - epidote assemblage and contain some authigene ( pyrite and glauconite ) . the content of stable mineral is small and mineral maturity index ( trzg / hp ) is low 在外陆架水动力的作用下,重矿物有一定富集,重矿物以角闪石?绿帘石矿物组合为特征,含有一定量自生矿物(黄铁矿和海绿石) ,稳定矿物少,矿物成熟度低。 |
| 6. | In this respect , it tends to be an alternative of towing tank tests . the solution of 3d viscous flows around a ship in steady straightforward courses is capable of capturing more nearfield flow features than model tests and predicting viscous resistance with high accuracy , whilst for viscous flows around a ship in maneuvering motions such predictions are only in general good 三维船舶粘性流计算方法,具有准确捕捉船体周围粘性流动细节包括船模试验难以测量的流动形态的能力,已成功地应用于船舶快速性方面的阻力预报;在船舶操纵性方面,这类方法虽处于初始发展阶段,但也已获得重大进展,具有精确预报船舶操纵水动力的潜力。 |
| 7. | Incorporating the non uniform rational b spline ( nurbs ) which is the only definition of the form of industry products , the author selects the method of b spline to do the numerical computation research work of the hydrodynamics of three dimensional ship hull based on the reading and analysis of the documents about hydrodynamics , especially the interaction hydrodynamics 作者在对与船体水动力尤其是干扰水动力的研究相关的文献的阅读与分析的基础上,结合作为定义工业产品几何形状的唯一数学描述的非均匀有理b样条方法,选择b样条(统一成非均匀有理b样条形式)来进行有关三维船体水动力的数值计算研究工作。 |
| 8. | In the aspect of ship maneuvering hydrodynamics , taking bulk carriers and oil tankers for an example , the prediction was done ; in the turning circle , different ships under different rudder angles were studied and predicted ; in the zigzag curve , different ships under constant rudder angle were studied to predict another two ships 在操纵运动水动力方面,以散货船和油船为例探讨应用bp网络完成水动力的学习和预报;在回转圈方面,完成了不同船舶在不同舵角下的学习和预报;在z形曲线方面,对不同的船舶在同一舵角下进行学习,预报了另外两艘船舶的z形曲线。 |
| 9. | The effect of reynolds number on rudder hydrodynamic performance is also analyzed . up to the stall angle the computed lift and drag agree well with measurements and other author ' s calculations , whereas stall angle , lift and drag beyond the stall angle are slightly under - predicted . the solver is used to investigate laminar and turbulent separated flows around a 6 : 1 prolate spheroid at high incidence angles and their effects on hydrodynamic forces 应用所开发的求解器,以naca0015翼型舵为算例计算了船舵在不同雷诺武汉理三;大学博士学位论文数下大舵角范围内的三维粘性流场及水动力,成功地预报了舵的失速角和最大升力,并初步探讨了雷诺数对舵水动力的影响;计算结果与现有试验和计算数据比较,吻合程度相当好,初步检验和验证了该求解器精确模拟粘性流动和计算水动力的能力。 |
| 10. | Influenced by flood dominated current in the flood channels , the characteristics of surface sediments , such as grain size , light and heavy minerals , micro - paleontology and magnetism in the flood channel are very different from those in the ebb channels , this kind differences is the response for complex hydrodynamic in estuary 河口涨潮槽在涨潮优势流作用下,槽内表层沉积物的粒度、轻重矿物、微体古生物和磁学等特征不同于落潮槽相应的沉积特征,体现了沉积物的分布对河口复杂水动力的响应。 |