片语

secondary steam flow rate二次蒸汽流量

a secondary axial flow二次轴向流

secondary mass flow rate引射量

secondary y flow次级流

secondary current flow二次涌流

secondary shear flow二次剪流

英汉例句

• the comparison between the values of spanwise variations of outlet angle with an inviscid secondary flow theory and those by measurement is approximated.

  二次流理论计算叶栅出气角沿叶高变化与实验相近。

• the combination of the slot with an optimized blade design significantly reduces the secondary flow losses compared to the original turbine stator, especially at large negative angles of incidence.

  经联合造型后的叶栅与原始叶栅相比在各个攻角下的流动损失均有大幅度降低，大负攻角下效果尤为明显。

• the first order effect of curvature is to form the two counter rotating cells of the secondary flow and to push the maximum axial velocity to the outer bend.

  在曲率一阶项的作用下，截面上形成方向相反的两个二次涡，轴向速度最大值移向外侧；

• this blade can be used to produce counter pressure gradient at cascade passage end, reduce secondary flow loss, increase the efficiency of ip casing consequently, and improve the heat rate of units.

  本文讨论了透平叶栅中的二次流产生的机理，并深入探讨了一种减少二次流损失的有效方法---叶片斜置和复合斜置技术，分析研究它对叶栅气动性能和级特性的影响。

• a new measure to reduce the secondary flow loss of the stator cascade of steam turbine governing stage by means of the boundary layer suction near the suction side of endwall is presented.

  提出一种在调节级静叶栅叶片吸力面侧端壁处抽吸低能流体至轴封漏汽腔室，以降低静叶栅二次流损失的方法。

• there are flow separations at the front blade of bulge tip clearance. the high speed area of groove tip clearance increases the secondary flow loss dramatically.

  凸型间隙在叶片前缘引起了流动分离，凹型间隙存在一高速区，增加了二次流损失。

• in the research work , finite element analyses is adopted to study the velocity wave and the secondary flow of nonlinear pulsatile flow in the s-shaped curved arteries.

  本课题采用有限元分析方法研究非线性脉搏波在s型血管中的速度波，二次流。

• the results show that the effects of the secondary flow on the aeroelastical stability are different.

  结果表明， 考虑二次流效应计算的颤振边界与实验一致。

• the steady flow patterns of the induced secondary flow through the duct are obtained.

  获得了断面二次流动类型的变化的情况。

• obvious changes of blade surface velocity distribution at different reynolds number can be found, which induce the increases of profile loss and secondary flow loss.

  叶片表面速度分布亦发生较明显的变化，导致叶型损失与二次流损失增大；

• for co-rotation and counter-rotation in which the centrifugal force dominates the flow, the secondary flow in a rotating helical pipe has the same direction with that in a stationary one.

  对于正旋转和离心力占优的负旋转，二次流速度的方向和静止的情况相同；

• the separation flow is three dimensional in hydraulic machine. the pressure gradient in cross direction produces secondary flow in boundary layer.

  水力机械的分离为三维流动，三维流动的侧向压力梯度产生边界层的二次流动。

• as two common flow characteristics, the upper endwall separation and strong upper endwall secondary flow have great impact on the aerodynamic performance of large meridional expansion turbines.

  大子午扩张涡轮易发生外端壁流动分离，并产生较强顶部二次流。

• consequently, secondary flow is generated by the combined effects of centrifugal and coriolis forces and it may induce separation of the boundary layers.

  二次流是叶轮通道内流动损失的一个原因，对离心叶轮机械的性能产生不利的影响。

• while an incompressible liquid flows through a rotating inclined-tube with a constant pressure gradient the secondary flow due to coriolis force appears on cross section of the tube.

  流体在压差作用下，流经绕与中心线成任意角的转轴匀速旋转的圆管时，由于哥氏力的作用，垂直于中心线的截面内将产生二次流。

• in particular, the direction of the secondary flow may be reversed at higher rotational strengths.

  甚至在较高转速下二次流方向发生改变。

• the phenomenon and cause of the secondary flow in plane turbine cascades are discussed and a mathematical prediction model of losses is presented.

  本文根据已有的试验数据，提出了预测二次流损失分布的数学模型。

• the drag reduction of plane-surfaces with v-shaped grooves is given out by direct numerical simulation, and the drag reduction mechanism in the base of the secondary flow theory is suggested.

  利用直接数值模拟方法求得平板上v—型条纹表面上的降阻情况，并给出基于二次流动理论的降阻机理。

• the development of secondary flow at the downstream of turbine cascade with ejection from symmetry slot of trailing edge was investigated by numerical approach.

  采用数值模拟手段研究了涡轮叶片尾缘对开缝喷气栅后二次流的影响，给出了在设计工况下有、无喷气时栅后二次流影响。

• by treating the experiment data the mechanism of the secondary flow field and the loss model are proposed in this paper.

  作者还根据多次试验结果，拟出了二次损失的物理模型和预估方法。

• results show that there is a secondary flow in the belieal flow of the power law fluids in eccentric annuli. finally, the secondary flow is discussed.

  结果表明：幂律流体偏心环空螺旋流中存在二次流动、最后，还对这种二次流做了分析。

• the paper studied the fundament from the secondary flow create the energy loss to research and attain the relationship between the energy loss and the vortex correlation moment.

  本文从二次流能量损失的基础上研究，得到了涡漩相关矩与能量损失的关系，推导出涡漩雷诺应力方程，为进一步研究能量损失提供了新的依据。

• effects of eccentricity and rotation on the secondary flow and maximal axial velocity were analyzed, and the average friction factors and the wall friction distributions were also presented.

  分析了偏心距和旋转对于二次流以及轴向速度分布的影响，同时给出了平均摩擦系数和壁面摩擦力的分布。

• the evident difference among the flow patterns with different rotation number shows that the secondary flow induced by coriolis force takes an important role in determining the flow structure.

  不同的转动数下流场的形态有明显的差别，这表明由哥氏力引起的二次流在确定流场结构时起重要的作用。

• secondary flow velocity can be obtained with respect to cross suction normal vorticity.

  以截面法向涡量为基础，可求解得到与涡量对应的二次流速度场。

• it is found that the secondary flow are taken place on the annular cross section.

  结果表明环形截面上存在二次流动。

• based on the analysis of the streamline of primary and secondary flow in secondary combustion chamber, flow-in position concept was put forward.

  通过一次流、二次流流线和燃烧效率分析，提出了一次流切入点的概念。