在一个蓄电池单位上的流动的 LES 模拟一在水下压缩空气精力存储设备被进行。蓄电池单位由三接触组成在水下汽球安排在一种花的配置。流动的结构经由 Q 标准的三维的 iso 表面被检验。旋涡的核心被观察在上下风汽球出现。这些旋涡的核...在一个蓄电池单位上的流动的 LES 模拟一在水下压缩空气精力存储设备被进行。蓄电池单位由三接触组成在水下汽球安排在一种花的配置。流动的结构经由 Q 标准的三维的 iso 表面被检验。旋涡的核心被观察在上下风汽球出现。这些旋涡的核心产生的打漩的试管流动通过三根维的路径线被描绘。流动动力学经由对流动方向垂直的二个维的涡度轮廓的时间系列快照被设想；揭示上述的流打漩试管的狂暴的放荡运动流动。装载的水动力学的时间历史以电梯被介绍并且拖系数。在花的配置拖每个单个汽球的系数比一个单个汽球的小。总数拖三个动人的汽球的花的单位的系数，这被发现，即汽球的 drag 系数的求和，而它提供存储能力三次，不比一个单个汽球的太多大。除了它在设计适当基础和支持的实际意义，装载的即时水动力学被用来决定流的旋涡试管的狂暴的打漩热闹运动的频率；Strouhal 数字被发现比在一样的雷纳兹数字的一个单个范围的大。展开更多
With the rapid development of marine renewable energy technologies, the demand to mitigate the fluctuation of variable generators with energy storage technologies continues to increase. Offshore compressed air energy ...With the rapid development of marine renewable energy technologies, the demand to mitigate the fluctuation of variable generators with energy storage technologies continues to increase. Offshore compressed air energy storage (OCAES) is a novel flexible-scale energy storage technology that is suitable for marine renewable energy storage in coastal cities, islands, offshore platforms, and offshore renewable energy farms. For deep-water applications, a marine riser is necessary for connecting floating platforms and subsea systems. Thus, the response characteristics of marine risers are of great importance for the stability and safety of the entire OCAES system. In this study, numerical models of two kinds of flexible risers, namely, catenary riser and lazy wave riser, are established in OrcaFlex software. The static and dynamic characteristics of the catenary and the lazy wave risers are analyzed under different environment conditions and internal pressure levels. A sensitivity analysis of the main parameters affecting the lazy wave riser is also conducted. Results show that the structure of the lazy wave riser is more complex than the catenary riser;nevertheless, the former presents better response performance.展开更多
文摘在一个蓄电池单位上的流动的 LES 模拟一在水下压缩空气精力存储设备被进行。蓄电池单位由三接触组成在水下汽球安排在一种花的配置。流动的结构经由 Q 标准的三维的 iso 表面被检验。旋涡的核心被观察在上下风汽球出现。这些旋涡的核心产生的打漩的试管流动通过三根维的路径线被描绘。流动动力学经由对流动方向垂直的二个维的涡度轮廓的时间系列快照被设想；揭示上述的流打漩试管的狂暴的放荡运动流动。装载的水动力学的时间历史以电梯被介绍并且拖系数。在花的配置拖每个单个汽球的系数比一个单个汽球的小。总数拖三个动人的汽球的花的单位的系数，这被发现，即汽球的 drag 系数的求和，而它提供存储能力三次，不比一个单个汽球的太多大。除了它在设计适当基础和支持的实际意义，装载的即时水动力学被用来决定流的旋涡试管的狂暴的打漩热闹运动的频率；Strouhal 数字被发现比在一样的雷纳兹数字的一个单个范围的大。
基金supported by the Fundamental Research Funds for the Central Universities of China(grant numbers 3132016353,3132019117,3132019122)the Natural Sciences and Engineering Research Council of Canada
文摘With the rapid development of marine renewable energy technologies, the demand to mitigate the fluctuation of variable generators with energy storage technologies continues to increase. Offshore compressed air energy storage (OCAES) is a novel flexible-scale energy storage technology that is suitable for marine renewable energy storage in coastal cities, islands, offshore platforms, and offshore renewable energy farms. For deep-water applications, a marine riser is necessary for connecting floating platforms and subsea systems. Thus, the response characteristics of marine risers are of great importance for the stability and safety of the entire OCAES system. In this study, numerical models of two kinds of flexible risers, namely, catenary riser and lazy wave riser, are established in OrcaFlex software. The static and dynamic characteristics of the catenary and the lazy wave risers are analyzed under different environment conditions and internal pressure levels. A sensitivity analysis of the main parameters affecting the lazy wave riser is also conducted. Results show that the structure of the lazy wave riser is more complex than the catenary riser;nevertheless, the former presents better response performance.
