| 1. | Centrifugal vane wheel type flowmeter
离心叶轮式流量计 |
| 2. | Centrifugal impeller mixer
离心叶轮混合器 |
| 3. | Optimizing design method for centrifugal impeller its engineering application and numerical simulation
离心叶轮优化设计法应用与全三维数值模拟 |
| 4. | The designer of centrifugal impellers needs knowledge of the flow phenomena inside the impeller passages
离心叶轮的设计者需要详细了解其内部流场的各种流动现象。 |
| 5. | In present dissertation , a high performance scheme is employed to simulate the complicated flow field inside centrifugal impeller passages
本文应用一种高性能的数值计算方法求解了离心叶轮内部复杂的三维流场，研究了它们的气动性能。 |
| 6. | The secondary flow mechanism has been further understood . the full conditions numerical simulations of the nasa low - speed centrifugal compressor ( lscc ) are carried out . the impeller ' s full conditions
综上所述，论文的工作搭建了求解离心叶轮机械的数值平台，为进一步研究离心机械内复杂的流动现象以及进行离心机械的设计打下了坚实的基础。 |
| 7. | The work includes several principal points as follow . a hybrid grid generation technique which couples the method of solving partial differential equations with the geometric method is applied to generate high quality structured grid for cfd calculation
主要工作包括以下几个方面：采用求解偏微分方程和几何法相结合的混合型网格生成技术，开发了适用于离心叶轮机械的高质量结构化网格生成算法。 |
| 8. | Detailed numerical simulation of krain impeller at design operating condition is made , the computed results , such as circumferentially averaged shroud static pressure distribution , meridional velocity and relative flow angel et al . , show good agreement with experimental data
对krain高速离心叶轮在设计工况下的内部流场进行了详细的数值模拟，计算所得轮盖压力分布、子午速度及相对气流角分布与实验结果吻合较好，并且进一步加深了对二次流机理的认识。 |
| 9. | Based on former work , a finite difference viscous code that uses a high convergence , high accuracy , high resolution lu - sgs - ge implicit scheme and an improved fourth ( fifth ) - order high resolution muscl tvd scheme to integrate the full 3d navier - stokes equations and the low - reynolds number two - equation turbulence model is extended to simulate the flow field inside centrifugal impeller mechanism
并且在现有工作基础之上，将基于有限差分方法的高收敛率、高精度、高分辨率的lu - sgs - ge隐式格式和四（五）阶muscltvd格式求解全三维navier - stokes方程和低雷诺数双方程湍流模型的计算程序推广到离心叶轮机械内部流场的数值求解。 |
