Due to the fast urbanization process in present china , the paper calls for deeper understandings of local culture and appliance of passive building technology in architecture design , which will have greater significance than working on architecture appearance only 基于当代中国急变的城市社会环境，提倡设计中加深对地区文化的认识以及选择和应用适宜的技术策略，认为加深对于地区文化与自然地理条件的认知，转而投射到建筑实践中远比单纯建筑形式上的推敲更具深远意义。
Unsteady separated flow , produced during the gate - opening period in the reverse radial gate tunnel of a high - lift shiplock , is characterized by negative pressure and high velocity as well as their intense fluctuations in space and time and could easily result in various harmful phenomena such as cavitation , gate vibration and sonic boom , which have been observed and confirmed by prototype and physical model tests 高水头船闸输水反弧阀门开启过程中，后廊道内发生急变分离流，负压、高速水流以及压力与流速的剧烈时空脉动变化容易诱发空化空蚀、门振和声震等有害现象已被原型观测和物理模型试验研究证实。
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
Because these harmful phenomena are closely related to the dynamic process of the flow , it is of great importance , theoretically and practically to the engineering design , to study the flow regime and predict the variations of flow velocity and pressure so that the hydrodynamic mechanism of cavitation and gate vibration could be analysed 由于这类有害现象的发生与水流的流动特性密切相关，探明阀门段水流急变分离的流态、预测流速、压力时空变化规律，分析空化与振动的水动力学成因，在理论上和工程设计实践上皆具有重要意义。
