宇宙的运动是由暗能量来推动的。暗能量总是以一种旋涡运动的形式出现,所以,在暗能量的旋转范围内形成一种旋涡场,我们称之为暗能量旋涡场,简称为旋涡场。漩涡场使被影响对象做圆环状或螺旋状运动。用户可以用粒子来使用漩涡长,以创建诸如漩涡或龙卷风类的效果。包含有大量物质的旋涡场叫做物理旋涡场,没有任何物质的旋涡场叫做空旋涡场。
建立了二维浅水流动的旋涡诱导速度公式,在已知旋涡场和胀量场时,由该表达式可确定流动速度场。
A formula is deduced for the velocity induced by the vortices in two-dimensional shallow water flows and it is used to correct the Biot-Savart law.
激光-超声方法是通过测量由流动引起的超声脉冲信号在两束或更多来激光之间传递的时间差实现旋涡场测量的。
Our laser - ultrasonic method is better than existing laser methods for measuring flows. So we use our laser - ultrasonic method to measure the vortex field of the flow.
如同不可压流动,在可压缩流动中旋涡同样具有场与物质两重特征。
As in the incompressible flow, the Field and Matter Bicharacteristics of Vortex also have been demonstrated.
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