在实验开始时,在水箱中搅动的是一支参考桨(用于初始化,是一种标准的、平板形、宽度分别为两厘米、六厘米或者是八厘米的桨叶)。
On the first run, the tank was stirred with a reference paddle (initially, a standard, flat shape with a width of two, six or eight centimetres).
然而,它不能将三角形的桨从波浪形或圆柱形的桨中区分出来。
He was, though, unable to separate the triangular paddle from the undulating and cylindrical ones.
亨利成功分辨出平板和圆柱形的,平板和波浪形的,以及波浪和圆柱形的桨。
Henry successfully distinguished between the flat and cylindrical paddles, the flat and undulating paddles and the undulating and cylindrical paddles.
汉克博士和威斯·科顿接着会使用不同形状的桨——三角形、圆柱形、平板形以及波浪形——的尾流对亨利进行测试。
Dr Hanke and Mr Wieskotten then tested Henry with the wakes of paddles of different shapes: triangular, cylindrical, flat and undulating.
螺旋桨表面和它的尾涡面离散为四边形双曲面元,每个面元上布置等强度偶极子和源汇分布。
The surface of propeller and its trailing vortex is divided into a number of small hyperboloidal quadrilateral panels with constant source sink and doublet distributions.
螺旋桨表面和它的尾涡面离散为四边形双曲面元,每个面元上布置等强度偶极子和源汇分布。
The surface of propeller and its trailing vortex is divided into a number of small hyperboloidal quadrilateral panels with constant source sink and doublet distributions.
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