Investigation of Sloshing in partially filled tanks considering density ratio and phase transition effects

该项目的主要目的是进行专门的实验研究的相变和密度比之间的气液两相晃动和晃动引起的负载的影响。为此目的，将设计一个试验箱，并将制定一个实验程序，允许在环境温度下使用水作为液相，使用空气或高密度气体混合物作为气相。此外，在减压下沸腾的液体将被用来研究相变效应。实验装置将允许通过高速视频记录以及使用粒子图像测速法测量罐中的流速来测量自由表面行为。罐壁上的压力由嵌入式微型压力传感器测量。对于不同的模型流体，将进行几个不同的坦克运动和影响的情况下的实验。为深入分析密度比和相变的影响提供了广泛的试验结果基础。对影响的理解将导致全尺寸晃动载荷预测的长期改进。

The main objective of this project is to carry out a dedicated experimental investigation of the influence of phase transition and density ratio between gas and liquid phases on sloshing and sloshing induced loads. For this purpose, a test tank will be designed and an experimental procedure will be developed which allows the use of water as the liquid phase at ambient temperature with air or a gas mixture of high density as the gas phase. Further on, boiling liquids under reduced pressure will be used to investigate phase transition effects. The experimental setup will allow the measurement of the free surface behavior by means of high-speed video recordings as well as the flow velocities in tank using Particle Image Velocimetry. Pressures on the tank walls are measured by flush-fitting miniature pressure sensors. For the different model fluids, several experiments with various tank motions and impact scenarios will be performed. A broad base of test results to deeply analyze the influence of density ratio and phase transition will be generated. The understanding of effects will lead to a long-term improvement of the prediction of sloshing loads in full scale.