表现出流体和颗粒相耦合的实验泥石流的空间和时间演变
Spatial and temporal evolution of an experimental debris flow, exhibiting coupled fluid and particulate phases
摘要：
泥石流的内部行为提供了对造成其运动的力学的基本认识。我们提供了一个小规模的实验泥石流内的速度数据，包括瞬时释放的水颗粒混合物沿矩形水槽，倾斜31度。结果表明，从碰撞，湍流前的粘性型，稳定的流体，表现出强烈的流体颗粒耦合的过渡。这是第一次，无论是空间和时间演变的内部机制的小规模泥石流已被认为是。我们的研究结果为测试两相流体颗粒数值模型提供了宝贵的数据。
英文摘要：
The internal behaviour of debris flows provides fundamental insight into the mechanics responsible for their motion. We provide velocity data within a small-scale experimental debris flow, consisting of the instantaneous release of a water-granular mixture along a rectangular flume, inclined at 31 degrees. The results show a transition from a collisional, turbulent front to a viscous-type, steady flow body, exhibiting strong fluid-particulate coupling. This is the first time that both the spatial and temporal evolution of the internal mechanics of a small-scale debris flow have been considered. Our results serve as invaluable data for testing two-phase fluid-particulate numerical models.
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