对有压瞬变流系统提出整体可控性概念。
The conception of integral controllability of pressurized transient fluid systems is presented.
而这正是有压瞬变流反问题研究的强大动力和重要意义所在。
This is the strong drive to study the inverse problems of PFT.
面对着复杂程度不一的有压瞬变流系统，有压瞬变流正问题基本可解。
The forward problems in various pressurized fluid transient systems are solvable hi general.
本文讨论了管内瞬变流这一类双曲型非线性分布参数系统的状态观测问题。
This paper examines the problem of observing the state of fluid pipeline transients.
以简单管系统为研究对象，建立了有压瞬变流限压控制反问题的最优控制数学模型。
With the simple pipe system taken as an object for study, a numerical model for optimal control was developed.
在液体管道瞬变流计算中，传统的拟恒定摩阻模型不能准确描述瞬变流的真实物理现象。
The traditional quasi-steady friction models are proved to be inaccurate in transient pipe flow because they underestimate friction losses in transients.
在液体管道瞬变流计算中，传统的拟恒定摩阻模型不能准确描述瞬变流的真实物理现象。
The traditional quasi - steady friction model can not be accurately described the real transient problems in transient pipe flow.
本文对水电站瞬变流数值模拟计算中的几个亟待改进的问题进行了深入的研究，并且初步完成了有关计算软件的开发工作。
This dissertation makes a detailed study on several aspects of basic theories of fluid transients in hydropower station systems and design of initial software is carried out.
本文介绍了离心泵在纯液相流瞬变工况的性能研究的一些进展。
This paper presents some advances in the study of centrifugal pump performance under pure liquid phase transient flow conditions.
特别注意了泵在气-液两相流瞬变工况的机理分析。
Special attention is devoted to the analysis of the mechanism of pump under gas-liquid two phase transient flow conditions.
根据不同流型提出计算两相流瞬变特性的简化公式以此预测管内气液分布瞬变特性。
Make a simplified solution calculating two-phase flow transient state property according to different flow pattern and then forecast transient property of air-water distribution in pipe.
说明了在瞬变阶段观察到的流型，并将试验得到的数据与现在的瞬态流方法相比较，从而评估此方法的正确性。
It shows a flow pattern observed in transient state period. Comparing the data get from test with a transient state method in present we can evaluate the correction of the method.
说明了在瞬变阶段观察到的流型，并将试验得到的数据与现在的瞬态流方法相比较，从而评估此方法的正确性。
It shows a flow pattern observed in transient state period. Comparing the data get from test with a transient state method in present we can evaluate the correction of the method.
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