| 1. | Determining the location of batching interface in hydraulic transient simulation
水力瞬变仿真中混油界面位置的确定 |
| 2. | Pipeline fluid monitoring and leak location based on hydraulic transient and extended kalman filter
基于水力瞬变与扩展卡尔曼滤波的管道流体监测与泄漏定位 |
| 3. | The hydraulic transient process and calculating have always been the problems regarded by the engineers
调压系统的水力瞬变过程和计算一直是设计人员关注的重要问题。 |
| 4. | Research on hydraulic transients and operating system for energy - reserve rapid - drop gate of large scale pumping stations
大型泵站水力过渡过程计算及蓄能式液压启闭闸门的研究 |
| 5. | The relap5 code is a great thermal - hydraulic transient analysis code at present , and it is as the tool of studying passive safety in this thesis
Relap5程序是目前大型的热工水力瞬态分析程序，本文把它作为非能动安全研究的工具。 |
| 6. | The difference formulation and boundary condition have been gained by the method of characteristics and the hydraulic transient basic formulation
从压力管道水力瞬变基本方程出发，利用特征线法求解了压力管道水力瞬变的差分方程及边界条件。 |
| 7. | Based on the theory of valve stroking , the mathematical models and their numerical methods of valve stroking in specified time with pressure constraint are proposed for the hydraulic pipe - turbine system in pumped storage plants , the models and their solving methods are also proposed for the complex hydraulic pipe - turbine systems with the practical programmes under the conditions of hydraulic transients
摘要对于整体可控的水力机组系统，在过渡过程计算中可直接应用阀调节原理，本文提出了不带调压室的简单管道及分叉管道系统限时阀调节和限压阀调节数学模型及其求解方法，并对此进行算例分析。 |
| 8. | By use of - perturbation method with spatial discretization , the hydraulic transient system controlled by quasilinear partial differential equation was converted to a time - continuous linear system , so that the inverse problem of hydraulic transients under limited pressure could be sol ed with the optimal control theory for time - continuous systems
采用-摄动法并经过空间离散，将由拟线性偏微分方程控制的有压瞬变流系统转化为时间连续线性系统，从而使有压瞬变流限压控制反问题能应用时间连续系统最优控制理论来求解。 |
| 9. | In this thesis work , a 1 - d hydraulic transient model and a 2 - d compressible flow model with the large eddy simulation approach have been applied to analyse the hydrodynamic process of the unsteady separated flow . prototype observation data of gezhouba shiplock no . 3 has been used to verify the computational results . it has been found that two different types of flow regime - stably - varying and strongly - oscillating regimes - could occur in the radial gate tunnel
本文采取将一维非恒定流模型与二维可压缩流一大涡模拟模型相结合的方法，分析了急变分离流的水动力学特性，并利用葛洲坝三号船闸的原型观测资料验证了数值模型的可靠性，发现阀门段存在平稳变化型和剧烈振荡型两种不同的流态，并详细计算、分析了它们的流动特征 |
