| 1. | A numerical analysis of three - dimensional viscous flow through the power turbine for marine gas turbine
一个典型舰船动力涡轮三维粘性流动的数值分析 |
| 2. | An implicit algorithm suitable for solving viscous flow problems on unstructured mixed element grids
一种隐式时间算法在非结构混合网格粘性流动计算中的应用 |
| 3. | So , it is indispensable to investigate thoroughly the three dimensional viscous flow through the turbine
为此，对水轮机内部流动状况进行三维粘性流动数值解析是非常必要的。 |
| 4. | First , a 2 - d unsteady viscous flow in a vibrating cascade is investigated under flow - structure uncoupled conditions
本文首先研究气固非耦合条件下的振动叶栅内二维非定常粘性流动。 |
| 5. | There were some intensively nonlinear features in the vibrating cascade flow . the frequency of the separated vortex ' s propagation was not equal to the vibrating frequency of the blade
二维分析中发现振动叶栅非定常粘性流动具有较强的非线性特征，振动诱发的分离涡传播频率与叶片的振动频率不一致。 |
| 6. | On three - dimensional numerical solution of incompressible viscous flow by osfem abstract an algorithm for solution of three - dimensional navier - stokes equations for incompressible viscous flow is developed . a decoupled algorithm based on the operator - splitting technique is applied
由于三维粘性流动的复杂性，例如流动边界的选取、控制条件的给定以及混合算子方程高精度数值解法等，都值得探讨和研究。 |
| 7. | 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。 |
| 8. | 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。 |
| 9. | 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。 |
| 10. | 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。 |
