为什么设计和非设计工况有不同的程序？
本文针对非设计工况下叶栅的分离流动进行研究。
This paper focuses on the unsteady characteristic of cascade separation flow under off-design condition.
此外，还指出在设计流量下优化的叶轮不一定在非设计工况下也有良好的声学性能。
In addition, it is shown that impellers optimized at design point may not have good acoustic performances at off design point.
在非设计工况下运行时，火焰的轴向位置和燃烧放热的变化也对系统稳定性产生影响。
Under off-design operating conditions, shifting of the flame's axial position and its heat release may also influence the system's stability.
给出了一双级高负荷跨音速风扇设计和非设计工况下的详细计算结果，各工况下的计算与实验数据均吻合较好。
The computed results for a highly loaded two-stage fan at design and off-design conditions were given in detail. The simulation results show good agreement with experiment data.
非设计工况下流道的水力损失恒大于相同流量时设计工况下的水力损失，左侧的水力损失大于右侧的水力损失，且不符合二次抛物线变化规律。
The head loss of the left side is always greater than that of the right side, and the head loss curves don't comply with the second order parabolic law.
混流式水轮机在非设计工况点下运行时，尾水管内部的非定常流动是由死水域和螺旋涡带的动态行为引起的，尾水管上部的螺旋涡带旋转引起流动的基频脉动。
The unsteady flow in a draft tube of Francis turbine under the off-design operation is produced by the dynamic behavior of a helical vortex rope with the dead core.
混流式水轮机在非设计工况点下运行时，尾水管内部的非定常流动是由死水域和螺旋涡带的动态行为引起的，尾水管上部的螺旋涡带旋转引起流动的基频脉动。
The unsteady flow in a draft tube of Francis turbine under the off-design operation is produced by the dynamic behavior of a helical vortex rope with the dead core.
应用推荐