surface streamline 表面流线 ; 面流线
streamline paraboloid surface 流线型微弯曲面
limiting streamline of surface 表面极限流线
In this paper, the finite element method is used for the calculation of S1 streamline surface of Francis turbine runner with half vanes.
本文采用有限元法对带半叶片的混流式转轮的S1流面进行了流场计算。
In addition, due to the streamline surface, the shape resistance is reduced, thus lowering the flowing pressure loss and the fluid transportation energy consumption.
另外，重要的是由于其流线型表面，使得形状阻力减小，从而降低了流动压力损失，减少流体输送能耗。
Preferably, the streamline surface of the shell is gradually shrunk from the head to the tail, and the rear openings are symmetrically distributed around the Central Line of the shell.
优选的，所述壳体的表面流线型由头部到尾部逐渐收缩，所述后开口围绕所述壳体的中心线对称分布。
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