Water Jump in the Boundary Layer
Water Jump in the Boundary Layer
复制标题
边界层水跃
DOI：
10.1143/jpsj.4.212
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发表时间：
1949
影响因子：
1.7
通讯作者：
I. Tani
中科院分区：
文献类型：
--
作者：
I. Tani
边界层中的水跳跃。213积分曲线以螺旋形式接近（11）的分子和分母都消失的点。但是,所有。积分曲线不一定像自由曲面的直线那样具有物理意义。如果我们从点（r: 0, h: 0）开始，曲线的斜率继续增加，直到达到斜率无穷大的等斜线。然而，实际上，在达到无限斜率之前，压力梯度的增加导致了流动与壁面的分离，从而导致了回流，从而解释了流的突然增厚。这里给出的分析已经由栗原教授（1946）以稍微修改的形式得到。现在的作者，没有意识到这一工作，独立地发展了类似的分析，并得出结论，值得“提出另一个！”求解方法，其中考虑了高速城市分布形式的变化。§4。为了求解方程(5)近似
Water Jump in the Boundary Layer. 213 integral curves approach in spirals to the point where both the numerator-and denominator of (11) vanish. But, all. the integral curves cannot neces~ sarily have physical significance as lines of free surface. If we start from the point r: O, h:'0, the slope of the curve continues 1to increase, until the isocline with infinite slope is reached. Actually, however, before reaching the infinite slope, theincrease in pressure gradient produces separation of flow from the wall and consequently back flow, thus giving explanation for the sudden thickening of the stream.The analysis as given here has already been obtained by Prof. Kurihara (1946) in a slightly modified form. The present writer, unawares of that work, developed independently a similar ana—lysis, and came to the conclusion that it would be worth while” to put forward another! method of solution, in which ‘the change in the form of velo city distribution is taken into account. § 4. In order to solVe the equation (5) approxi-