定常流是指在流场中的任何一点处,如果流体微团流过时的流动参数——速度、压力、温度、密度等不随时间变化的流动。 定常流(也称恒定流)即流场中任一点的物理量(如速度、压强、温度、密度等)不随时间改变的流动。在实际工程中,不少非定常流问题的运动要素随时间变化非常缓慢,可视为定常流。许多实际情况中,流的速度剖面随深度的变化也是缓慢的,例如,由长潮汐波的传播所引起的纯潮汐流即是如此。而且,一般认为,在海床以上1米处的水质点速度和加速度未受海床的影响,并将海床至该处的区域假设为边界层。
... stationary combustion source静止火源;静止火箱;静止燃烧室 stationary flow稳定流;定常流;稳流 stationary source固定污染源;静止污染源 ...
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定常流动 steady flow
液体非定常流动 fluid abnormal motion
非定常流动 unsteady flow ; steady and unsteady flow ; non-steady flow
平稳流定常流 stationary flow
非定常流不稳定流 unsteady flow
定常流动系统 steady flow system
定常流空气动力学 [航] steady flow aerodynamics ; static aerodynamics
三维非定常流场 D unsteady flow field ; D unconstant flow field
定常流气体动力学 steady gas dynamics
Under the condition that computation results were tallied with experimental data, this paper analyzed the three dimensional steady flow field structures.
在与实验数据很好吻合的条件下,分析了三维定常流动的流场结构。
参考来源 - 不同形状气膜冷却孔附近定常和非定常流动的数值模拟The series analytical solutions of stress and deformation of conical thin shell acted by steady flow, which is supported by non-fluid, are obtained.
进而求得定常流体作用下非流体支撑弹性圆锥薄壳应力与变形问题级数形式的解析解。
参考来源 - 圆锥薄壳在流体作用下的应力与变形分析·2,447,543篇论文数据,部分数据来源于NoteExpress
计算结果表明,振荡叶栅非定常流场的压力响应在叶栅前缘较大。
The results show that the unsteady pressure response is large in the oscillating cascade leading edge.
本文提出了用小扰动欧拉振幅方程求解振动叶栅非定常流场的方法。
In this paper, the Euler amplitude equation is developed to obtain the unsteady flow field in vibrating cascades.
本文采用数值方法对叶轮机基元非定常流和排间匹配进行深入研究。
Numerical studies about cascade unsteady flow and the edge-matching technique are presented in this paper.
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