论文标题
浸入通道流中的矩形障碍物的平衡构型
Equilibrium configuration of a rectangular obstacle immersed in a channel flow
论文作者
论文摘要
流体在障碍物周围流动会产生涡流，从而在障碍物上产生升力力。因此，即使在完美的对称框架中，平衡位置也可能是不对称的。我们表明，至少对于较小的雷诺数和流速，在无限的2D通道中的Poiseuille流并非如此。我们考虑了垂直移动的障碍物和围绕固定引脚旋转的障碍物的情况。
Fluid flows around an obstacle generate vortices which, in turn, generate lift forces on the obstacle. Therefore, even in a perfectly symmetric framework equilibrium positions may be asymmetric. We show that this is not the case for a Poiseuille flow in an unbounded 2D channel, at least for small Reynolds number and flow rate. We consider both the cases of vertically moving obstacles and obstacles rotating around a fixed pin.
