流动中的机身晃动或提离
Body-rock or lift-off in flow
摘要：
条件下，一个身体躺在一个坚实的水平表面上的休息或摇摆可以从表面上删除的水动力或继续摇摆。这项调查的动机是最近对火星尘埃运动的观测以及其他小型和大型应用。非线性流体-物体相互作用理论在这里有一个非定常运动的无粘流体与一个移动的薄物体相互作用。各种形状的身体一起解决了一系列的初始条件。相关的参数空间被发现是微妙的演变和形状起着重要的作用，再加上缩放质量和重力效应。升空的身体从表面上一般不会发生没有流体流动，但它可以立即发生或在有限的时间内，一旦流体流动启动：参数，这是发现和比较与火星观测。
英文摘要：
Conditions are investigated under which a body lying at rest or rocking on a solid horizontal surface can be removed from the surface by hydrodynamic forces or instead continues rocking. The investigation is motivated by recent observations on Martian dust movement as well as other small- and large-scale applications. The nonlinear theory of fluid-body interaction here has unsteady motion of an inviscid fluid interacting with a moving thin body. Various shapes of body are addressed together with a range of initial conditions. The relevant parameter space is found to be subtle as evolution and shape play substantial roles coupled with scaled mass and gravity effects. Lift-off of the body from the surface generally cannot occur without fluid flow but it can occur either immediately or within a finite time once the fluid flow starts up: parameters for this are found and comparisons are made with Martian observations.
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