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叶轮速度
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  impeller speed
     The effects of addition mode, feed position and impeller speed on particle size and PSD in BaSO4 precipitation were investigated.
     用BaSO4沉淀考察了加料方式,加料位置和叶轮速度对沉淀颗粒大小和分布的影响。
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  “叶轮速度”译为未确定词的双语例句
     It's proved by the theory research that if the others conditions keep constant, the nozzle velocity coefficient has more influence affect the volute efficiency than the vane speed coefficient.
     理论研究表明,在其他条件不变情况下,喷嘴速度系数比叶轮速度系数对涡轮轮周效率的影响大得多,喷嘴速度系数如增加1%,涡轮轮周效率将增加1.5~2%;
短句来源
     If the nozzle velocity coefficient rises 1%, the volute efficiency rises 1.5-2% correspondingly, and if the vane speed coefficient rises 1%, the volute efficiency rises 0.1-0.2%.
     而叶轮速度系数增加1%,涡轮轮周效率只增加0.1~0.2%。 因此,降低喷嘴中的流动损失、提高其能量转换效率,是提高涡轮效率进而提高涡轮增压器总效率的重要途径。
短句来源
     Based on the quasi 3-D computed results,the velocity distribution for turbine rotor is evaluated according to the impact of rotation and curvature and then this evaluation is applied to turbine rotor loss model.
     它是根据旋转系统边界层流动稳定性的理论 ,在叶轮内部准三元计算结果的基础上分别考虑旋转和叶片曲率对流动稳定性的影响 ,从而建立涡轮叶轮速度分布的评价指标来估算分离损失的大小 ,然后将此评价指标应用于涡轮性能预测程序的叶轮损失模型中。
短句来源
  相似匹配句对
     Design and Manufacture of Screw Rotor for Speed Flow Meter
     速度式流量计螺旋叶轮的设计和制造
短句来源
     TFE VELOCITY OF WATER WAVE
     水波的速度
短句来源
     Speed Devils
     魔力速度
短句来源
     Optimal Design of Centrifugal Pump Impeller
     基于速度系数法的离心泵叶轮优化设计
短句来源
     CAGD FOR CENTRIFUGAL PUMP IMPELLER
     离心泵叶轮计算机辅助几何设计
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  impeller speed
Using Plackett-Burman design, impeller speed, concentrations of CoCl2 and KH2PO4 were identified as significant variables, which highly influenced ethanol production, and these variables were further optimized using a central composite design (CCD).
      
Maximum ethanol concentration of 132.56?g/l (16.8% [v/v]) was obtained for an impeller speed of 247.179 (≈250) rev/min, CoCl2 of 0.263?g/l and KH2PO4 of 2.39?g/l.
      
Agitation rate (impeller speed) was varied over the range 600 to 1500 rev.
      
The eventual effect of impeller speed on mechanical disruption of mycelial hyphae was then assessed by determining mycelial growth, total reducing sugars consumption, TOC reduction, carbon dioxide evolution and oxygen absorption rates.
      
Higher impeller speed resulted in both lower microbial growth and lower n-alkane degradation rate of the bacterium, although it increased the specific surface area of the oil, which was measured by a previously developed device.
      
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Two impellers are designed with different load distribution in 3B-33 type centrifugal pump. The characteristics of the pump with different impellers and the efficiency of impellers are tested, and the velocity distribution of impellers are calculated. The load and velocity distribution of the two impellers are compared with that of the original impeller.

本文用载荷法设计了两种不同载荷分布的叶轮,测试了泵的外特性曲线和叶轮效率曲线,并计算了叶轮的速度分布。本文讨论了载荷分布与叶轮性能的关系,初步得出了最佳载荷分布的规律,为载荷法设计叶轮提供了一定的依据。本研究是在3B-33型离心泵上进行的。

The effects of addition mode, feed position and impeller speed on particle size and PSD in BaSO4 precipitation were investigated. It is discovered that fine particles and narrow distribution can be abtained in the combination of static mixer and stirred tank reactor, and the size and distribution of particles can be controlled easily by changing operation conditions.

用BaSO4沉淀考察了加料方式,加料位置和叶轮速度对沉淀颗粒大小和分布的影响。发现采用组合反应器可得到尺寸小、分布窄的颗粒,且可通过改变操作条件控制颗粒尺寸和分布

In order to improve the precision,a new method predicting turbine performance by means of quasi 3-D flow analysis is presented.Based on the quasi 3-D computed results,the velocity distribution for turbine rotor is evaluated according to the impact of rotation and curvature and then this evaluation is applied to turbine rotor loss model.The experimental performance of two turbocharger turbines is compared with the results from this new prediction program and with those from previously used program.The comparisons...

In order to improve the precision,a new method predicting turbine performance by means of quasi 3-D flow analysis is presented.Based on the quasi 3-D computed results,the velocity distribution for turbine rotor is evaluated according to the impact of rotation and curvature and then this evaluation is applied to turbine rotor loss model.The experimental performance of two turbocharger turbines is compared with the results from this new prediction program and with those from previously used program.The comparisons show an improvement of predicting precision with this new method.

为了提高涡轮性能预测的精确度 ,提出了一种应用涡轮叶轮准三元流动分析的预测方法。它是根据旋转系统边界层流动稳定性的理论 ,在叶轮内部准三元计算结果的基础上分别考虑旋转和叶片曲率对流动稳定性的影响 ,从而建立涡轮叶轮速度分布的评价指标来估算分离损失的大小 ,然后将此评价指标应用于涡轮性能预测程序的叶轮损失模型中。通过对 2种车用涡轮增压器涡轮效率预测结果和试验结果的比较 ,证明运用此方法可以提高涡轮性能预测的精确度。

 
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