速度矢量场；
The flow separation phenomena can be clearly observed from the computed velocity vector field.
从依据计算结果画出的全流场速度向量图能清楚地观察到流动的分离现象。
The velocity field resulting from vortex flow is studied. The vector field distribution and geometry topology characteristic are discussed by means of numerical simulations.
研究了由涡度诱导出的速度场，采用数值模拟方法，讨论了矢量场的分布和几何拓扑性质。
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