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1)  annular cascade with high diameter-length ratio
大径高比环形叶栅
2)  annular cascade
环形叶栅
1.
Research on the effects of unsteady excitation on enhancing performance of annular cascade;
环形叶栅内利用非定常激励减少分离区损失的研究
2.
Experimental investigation on flowfields of non-axisymmetric endwall of annular cascades in multi condition;
变工况下非轴对称端壁环形叶栅流场特性实验
3.
In regard to the excitation experiments,time-Accurate numerical stimulation was carried out to investigate the upstream disturbance frequency effect under different incidence in an annular cascade.
针对某静止环形叶栅的激励实验工作,相应的对扩压叶栅进行了不同气流攻角和激励频率的非定常粘性计算与流场分析。
3)  annual cascade
环形叶栅
1.
An experiment was made in an annual cascade to explore the unsteady flow mechanism of skewed slot hub treatment in removing flow separation near hub.
在低速环形叶栅实验台上圆弧斜槽处理轮毂相对静子扩压叶栅环的旋转频率对叶栅端壁区流动进行了影响实验探索。
4)  high ratio of height to thickness
大高径比
1.
The influence of squeeze casting on cup-shaped ZA27 alloy castings with high ratio of height to thickness (M=7) was investigated.
研究了挤压铸造比压对大高径比(M=7)ZA27合金杯形铸件组织与不同部位性能的影响。
2.
The fundamental problem of plunger type squeeze ZA27 alloy castings with high ratio of height to thickness (M=H/D=7) was investigated.
研究了大高径比(M=H/D=7)ZA27合金铸件的柱塞式挤压铸造。
5)  larger ratio of height to diameter
大高径比
1.
The distinct characteristic of squeeze casting with larger ratio of height to diameter is (heterogenous) distribution of squeeze pressure.
大高径比挤压铸件成形时的一个显著特征是压力沿着轴向分布严重不均。
6)  blade diameter length ratio
叶片径高比
补充资料:高径比
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性质:反应器的高度与直径之比。当通过动力学计算确定了反应器的体积后,便需要选取反应器的直径和计算出它的高度,并由此得出反应器的高度与直径之比。高径比不是随意决定的,而是根据造价和操作费用的综合经济效益求得的。直径较大的容器,特别是高压设备,壁厚增大,造价较高,但在相同处理量下流速低,输送功率小。改变高径比也会改变床层内的温度分布。故需慎重选用高径比。

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