动量传递 meaning in English
momentum transfer
Examples
- Through the simulation we find that the shape of microchannel produce greatest affection on microfluidic momentum
模拟结果表明管道的形状和大小对微流体的动量传递有很大的影响，进而影响微流体的速度流型。 - 2 , application of the modified k - e model by munk - anderson equation to gravity flow in reservoir shows that the modified model overestimates the turbulent intensity in reservoir . it results enhance of momentum exchange in vertical direction and large error in velocity
采用munk - anderson修正的-模型模拟水库重力下潜流，发现该修正模型过高地估计了水库的紊动强度，使垂向动量传递加大，流速误差明显增加。 - The hydraulic gradients of settling slurry flow transported in three kinds of moving states , i . e . suspension , saltation , or partially suspension were investigated , based on analyzing the changes of solid particles and water in momentum , velocity and their mass related to momentum exchanging over the acceleration period of the solid particles
从固体颗粒加速期间清水与固体颗粒的速度变化、动量传递、相关质量等基本问题分析入手，研究了沉降性浆体在水平管道内流动时其固体颗粒在3种流动状态下的水力坡度，提出了沉降性浆体在水平管道内流动的机理模型，进而用该模型对一些输送条件下的沉降性浆体的水力坡度进行了计算。 - Based on prandtl ' s momentum transportation , this paper calculates in detail the physical quantities such as eddy viscosities , and ratio of eddy viscosity to motion viscosity , total stresses with respect to relative position in three regions of viscous sub - layer , buffer layer , and main turbulent stream for non - newtonian fluid flowing turbulently in ducts , which according to karman ' s three layer models and measurement of fluid parameters in evaluation apparatus , discusses the influence of polymer drag reduction on flowing properties of non - newton fluid , analyzes quantitatively principle of turbulent reduction phenomenon and condition of increasing reduction rate
摘要以普兰德动量传递理论为基础，按照卡门的三层模型，通过室内模拟环道用0号柴油及加入减阻剂在圆管内的流动参数的测定，计算了非牛顿型流体管内湍流边界层的层流内层、过渡层、湍流中心的涡流粘度，涡流粘度与运动粘度比、总应力随相对位置的变化等定量参数，探讨了高分子减阻剂对非牛顿流体流动特性的影响，对湍流减阻现象的机理与增大减阻率的条件进行了定量分析。 - The key items influent on the characteristics of spraying have been also studied in the dissertation , we can get a good spraying result by adjusting the related parameters efficiently . ( 3 ) the theoretical model of the dynamical parameters such as temperature , moisture , pressure and contour for hot medium and particle inside the drying chamber were obtained by model , utilized the computational fluid dynamics technique to solve the problem between spraying droplets medium by arranging the double grid dispersing structure and rotary outlet structure and the developed structure improved the drying efficiency and product quality
( 3 )采用-模型实现了压力喷雾干燥塔的温度场、湿度场、流场的理论建模，利用计算流体力学( cfd )技术来解决喷雾干燥过程中热介质与雾滴间的传热传质以及动量传递和湍流扰动等问题，避免了干燥过程中的设计不合理状况；通过增加双格栅均风装置和旋转出风装置，改善了干燥塔内的热质传递，提高了干燥塔的体积蒸发强度。