发表机构
Eindhoven University of Technology（埃因霍温理工大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
通过两相大涡模拟研究实验室尺度锁交换装置中气泡幕周围的流动和密度场，发现突破流态中存在三种子流态，其出现取决于空气弗劳德数和盐水与淡水密度比，对船闸气泡幕优化有重要意义。
AI 中文摘要
利用两相大涡模拟研究了实验室尺度锁交换装置中气泡幕周围的流动和密度场特性。我们详细研究了流体动力学，并表明在先前分类的突破流态中存在三种性质不同的（子）流态。这些流态的出现不仅取决于表征气泡幕与重力流相对强度的空气弗劳德数，还取决于一个额外的无量纲参数：盐水与淡水的密度比。在气泡幕阻止盐分向锁室淡水部分输送的有效性中也观察到对该额外参数的依赖性。因此，这对船闸中气泡幕的优化具有重要意义。
英文摘要
The flow and density field characteristics around a bubble curtain in a laboratory scale lock-exchange setup are investigated using two-phase large-eddy simulations. We study the detailed hydrodynamics and show that there are three qualitatively distinct (sub)regimes within the previously classified breakthrough regime. The occurrence of these regimes depends not only on air Froude number that characterises the relative strength of the bubble curtain and the gravity current, but also on an additional non-dimensional parameter: the density ratio between the salt and fresh water. The dependence on this additional parameter is also observed in how effective bubble curtains are in blocking the transport of salt to the fresh part of the lock. Hence, it has important implications for the optimisation of bubble curtains in ship locks.
