对于恒定流,若同一流线上各点的运动要素均相等,也就是说运动要素与流程无关,这种水流称为均匀流;否则称为非均匀流。对于均匀流来说,液体质点速度的大小和方向沿流程保持不变,即迁移加速度为零,质点只能沿流线作匀速直线运动。对于断面形状和尺寸及边界条件沿程不变的长直渠道或管道中的水流运动,都属于均匀流。
均匀流 uniform flow
非均匀流 non-uniform flow ; varied flow ; non-uniform stream ; [流] nonuniform flow
均匀流体 homogeneous fluid ; uniform fluid
均匀流动 uniform flow ; homogeneous flow
变速流非均匀流 nonuniform flow
径向非均匀流 radially nonuniform inflow ; radially varying inflow
均匀流态化 homogeneous fluidization ; uniform fluidization
非均匀流不等速流 nonuniform flow
不均匀流 inhomogeneous flow ; non-uniform flow
稳定均匀流动 steady uniform flow
After water cross-section determined in large flow and low water head aqueduct by designed flow and given water heads. When the flow increased,there is non-uniform flow happened in aqueduct.
大 流量低水头 渡槽根据设计 流量和给定水头确定过水断面后,通过加大 流量时, 渡槽内发生非均匀流,工程设计人员需对这种水流情况进行推算,以确定 渡槽在通过加大 流量时的水面线,由此 计算 渡槽侧墙高度和结构荷载,确保 渡槽的安全。
参考来源 - 南水北调中线京石河北段大流量低水头渡槽的水力计算—《南水北调与水利科技》—2008年第1期—龙源期刊网·2,447,543篇论文数据,部分数据来源于NoteExpress
明渠恒定均匀流正常水深在水力计算中十分重要。
The normal depth plays an important role in hydraulic calculation.
采用基于开尔文源的面元法求解航行于均匀流场中的船舶兴波问题。
The wave problem is predicted by adopting panel method based on Kelvin source for a ship traveling in a uniform flow.
理论分析表明三角形奇点分布形态在非均匀流场计算中具有其独特的优越性。
Theoritical analysis has shown that triangular singularity distribution has special advantages over the other ones(vortex ring or constant distribution) in the prediction of nonuniform flow field.
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