预旋的英文

• prerotation
• prewhirl

• "预"英文翻译    in advance; beforehand
• "旋"英文翻译    whirl
• "预旋度" 英文翻译 :    prerotation; prewhirl
• "预旋器" 英文翻译 :    prerotator; prewhirler
• "预旋转" 英文翻译 :    pre-rotation=prerotation; prewhirl
• "进口预旋" 英文翻译 :    inlet whirl
• "进气预旋" 英文翻译 :    air entry spin
• "预旋气流" 英文翻译 :    prerotation
• "预旋气流的" 英文翻译 :    entry spin
• "预旋叶片" 英文翻译 :    prewhirl vane
• "无预旋进气装置" 英文翻译 :    zero-entry swirl inlet
• "入口导叶的预旋调节" 英文翻译 :    pre-rotational swirl control by inlet guide vanes
• "预序关系" 英文翻译 :    preorder
• "预序范畴" 英文翻译 :    category of preordered sets
• "预序" 英文翻译 :    preorder
• "预叙" 英文翻译 :    flash-forward
• "预修正的输入" 英文翻译 :    pre-modified input

• ( 2 ) axial pre - swirling inflow on high radius holds back the further transmission of heat effectively , to inner part of cavity
  ( 2 )轴向高位进气有效地阻止了热流向盘腔内端纵深传递，在进气加有预旋时效果更好。
• The performance of the centrifugal compressor at different diffuser stagger angles and different inlet guide vane ( igv ) prewhirl angles are measured
  摘要对扩压器进口不同安装角和进口导叶不同预旋角匹配下离心压缩机的性能进行了实验研究。
• A very special rotating cavity with micro - turbine ( de - swirl nozzles ) was applied to investigate the flow characteristics inside the cavity under three mid rotating speeds
  摘要通过实验对中等转速下带有微型涡轮（反预旋喷嘴）的旋转涡轮盘腔内流动特性进行了系统研究。
• Sixthly , this article analyses analyzes the influence of such main factors as the rotor whirling speed , the entrance pre - rotating speed , the entrance pressure and the seals clearance on the dynamic characteristics of labyrinth seals
  6 、分析转子转速、入口预旋速度、入口压力、密封间隙等几种主要因素对迷宫密封动力特性系数的影响。
• By comparing the results with relative experiment data , it is shown that rng k - is more exactly than the other turbulent model . . 2 ) the influences of axial inflow position , radial outflow size , rotating reynold number , non - dimensional mass flowrate and axial inflow angle on the flow and heat transfer characteristics were numerically investigated for a typical rotator - stator cavity with axial inflow , radial inflow and radial outflow . the correlations for average nusselt number vs rotating reynold number or non - dimensional mass flowrate were established
  ( 2 )针对一典型的径向、轴向进气，径向出气的转-静盘腔结构，系统研究轴向进气位置、径向出口大小、旋转雷诺数、无量纲质量流量和轴向垂直预旋进气等对盘腔内流动和换热的影响，整理出转-静盘腔内转盘平均努谢尔数与旋转雷诺数无量纲质量流量之间的准则关联式。
• The investigation shows the performance gets quite insensitive to the prewhirl angle of igv as the stagger angle of diffuser vane is reduced to the minimum 7 ; the combination of these two stators enables to greatly improve the compressor efficiency over the entire operating rage , the maximum efficiency with the combined adjustment reaches 86 . 0 % , higher than that in alone adjustment of igv or diffuser vanes by 2 %
  研究表明：扩压器进口安装角最小值为7时，压缩机性能对进口导叶预旋角不敏感；采用不同的扩压器进口安装角和不同进口导叶预旋角匹配调节时，压缩机所能达到的最高效率为86 . 0 % ，比单独调节进口导叶预旋角或扩压器进口安装角所能达到的效率高2 % 。
• A new type of pressure coefficient cp is defined to lead to a linear correlation with radial locations , which will lead to a curve correlation with radial locations with conventional definition of cp . the correlations of cm , nuave and cp with rotational reynolds number have been got through the computation with rotational reynolds number from zero to 1 . 0 108
  给出了扭矩系数cm 、平均换热系数nu _ ( ave )随旋转雷诺数变化的关系式，发现它们与没有预旋时是完全不同的，当re _ = 0时， cm 、 nu _ ( ave )不为零，而具有一个初值。
• ( 2 ) the results reveal that the pre - swirl ratio has a great influence on the flow field of the rotating disk , even greater than the rotational reynolds number , and an initial constant is induced in moment coefficient cm and average nusselt number nuave correlations , which does not exist in the case of without pre - swirl
  ( 2 )分析了预旋系数_ r对该旋转盘腔流场的影响，定义了一个新的压力系数c _ p ，该压力系数c _ p沿径向位置的变化对特定的旋转雷诺数re _是一个常数。
• ( 1 ) taking the new br 700 gas turbine which is developed by rolls - royce deutshland as research object , the numerical simulation has been applied to the new structure of rotating disk system with pre - swirl nozzles on the rotating disk with ? turbulence model and with a new hybrid grid
  ( 1 )本文以rrd公司新研制的机种br700为研究对象，采用-湍流模型对带有预旋的新型旋转盘腔内的流动进行了数值计算。在旋转盘的计算中提出了一种新的网格剖分方法，计算的旋转雷诺数达到1 . 0 10 ~ 8 。
• 4 ) in a pre - swirl rotator - stator cavities with discrete pre - swirl nozzles and blade - cooling entry holes , the influences of pre - swirl angle and flow parameter on the flow and heat transfer characteristics were numerically investigated . the correlation for average nusselt number vs rotating reynold number or non - dimensional mass flowrate were established . the results show that : advantage of per - swirl inflow is the effect of cooling the blade - cooling entry holes ; pre - swirl inflow increases heat transfer in rotating disk of pre - swirl chamber ; as pre - swirl angle increases , local nusselt number decreases in pre - swirl chamber ; the temperature of stator of inner rotator - stator chamber and per - swirl chamber decreases as rotating reynold number increases ; when the axial mass flowrate maintains constant , heat transfer in the rotating disk of inner rotator - stator cavities does n ' t change as per - swirl mass flowrate increases , while heat transfer in the rotating disk of per - swirl chamber increases ; when the pre - swirl mass flowrate maintains constant , change of the axial mass flowrate has effect on the whole cavity
  结果表明，预旋进气的优点在于增强了叶片冷却孔附近的对流换热效果，局部努谢尔数随预旋角的增大而有所减小；随旋转雷诺数的增加，不论是内转静腔室还是预旋腔室的静盘上的温度都不同程度的降低：当轴向中心进气质量流量不变时，随预旋进气的质量流量增加，内转静腔室的转盘盘面上的换热基本没有变化，而预旋腔室的转盘盘面上的换热效果增强；当预旋进气质量流量不变时，轴向中心进气的质量流量的改变对整个盘腔都有影响。

• 预旋的日语：よせんかい