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# 2D-Cylinder(2D Flow Around a Cylinder)
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+ <a href =" https://aistudio.baidu.com/aistudio/projectdetail/6160381?contributionType=1&sUid=438690&shared=1&ts=1683961158552 " class =" md-button md-button--primary " style >AI Studio快速体验</a >
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## 1. 问题简介
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2D Flow Around a Cylinder,中文名称可译作“2维圆柱绕流”,是指二维圆柱低速定常绕流的流型只与 $Re$ 数有关。在 $Re \le 1$ 时,流场中的惯性力与粘性力相比居次要地位,圆柱上下游的流线前后对称,阻力系数近似与 $Re$ 成反比(阻力系数为 10~ 60),此 $Re$ 数范围的绕流称为斯托克斯区;随着 $Re$ 的增大,圆柱上下游的流线逐渐失去对称性。
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# 2D-LDC(2D Lid Driven Cavity Flow)
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## 1. 问题简介
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Lid Driven Cavity Flow,中文名称可译作“顶盖驱动方腔流”,一般指顶部平板以恒定速度驱动规则区域内封闭的不可压流体(例如水)的流动。在方腔流中可以观察到几乎所有可能发生在不可压流体中的流动现象,是一种典型的流体案例。
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# VIV(vortex induced vibration)
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## 1. 问题简介
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当涡流脱落频率接近结构的固有频率时,圆柱会发生涡激振动,VIV系统相当于一个弹簧-阻尼系统:
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