| 1. | Complex velocity potential 复数速度势 |
| 2. | Northern oscillation index defined based on stream function and velocity potential of atmospheric movement and its application 速度势定义的北方涛动指数及其应用 |
| 3. | This paper has adopted the low - order surface panel method based on velocity potential to predict the unsteady performance of propeller 本文采用基于速度势的低阶面元法进行螺旋桨非定常性能的预报。 |
| 4. | We first calculate the velocity potential between two adjacent time - steps and obtain the inertia force and added mass through integration 本文通过直接求解船在变速运动时两个相邻时刻的速度势,进而积分得到附加惯性力及附加质量。 |
| 5. | The rayleigh - taylor ( rt ) instability in cylindrical and spherical geometries was analized in this thesis , based upon velocity potential theory 本论文利用速度势理论对柱和球几何中不可压缩流体的rayleigh - taylor ( rt )不稳定性进行了研究。 |
| 6. | 5 ) the features of the olr and velocity potential ( x ) mjo spreading eastward , northeastward ( wnp ) and southeastward ( wsp ) are researched on the climatic and interannual scale 5 )用改进了的复经验正交函数( ceof )方法分析了从赤道印度洋到西太平洋然后向正东、东北、东南三条路经上的olr及速度势x的季内振荡传播特征。 |
| 7. | This paper firstly analyses the limitations of traditional potential field methods in dynamic environment , and based on this analysis , the traditional potential field is improved by introducing the concept of velocity potential field 摘要分析了传统势场法在动态环境下的不足,并在此基础上引入了速度势场的概念,改进了传统的势场函数,推导出新的引力函数和斥力函数。 |
| 8. | Chapter 5 directly sets out from the green formulae of velocity potential due to the existence of lifting force , adopts an approximate kutta condition and firstly calculates the maneuvering hydrodynamics of a wigley ship with an attack angle using the present method of b spline 由于有升力的存在,第5章直接从速度势格林公式出发,并采用了一种近似的kutta条件,首次采用b样条边界元方法对作斜航船武汉理} _人学博十学位论文体的操纵水动力开展了数值计豹 |
| 9. | Finally a set of equations with initiate values for boundary value problem is established where the velocity potential and its normal derivative are unknowns . because the model includes the effects of both the time and space to the velocity potential of free surface , it can be applied to strong nonlinear wave . as examples , solitary wave is computed in the numerical flume 推导给出计算域内以所有节点波势函数和波面位置高度的时间增量为未知量的线性方程组,并同时考虑时间因素和空间变位对波面势函数的影响,在预设的计算精度下,通过时步内的循环迭代逐一确定每个时步上的波面运动位置,从而建立了一种可适于求解强非线性波浪变形计算的数值模式。 |