Based on the shear theory of newtonian viscous liquid , the fusible damp coefficient is established for electromagnetism dynamic polymer extruder screw ' s axial vibration system 摘要对聚合物电磁动态塑化挤出机螺杆轴向振动系统，根据牛顿型粘性流体的剪切理论，确定了聚合物熔体的阻尼系统。
The resonant flow was researched in this paper , which is an incompressible , inviscid fluid with surface tension and different variational bottoms ; the effects of different variational walls on the nonlinear surface waves were analyzed 本文通过对具有表面张力的、不可压缩、无粘性流体流过不同壁面时的共振流动进行研究，分析了壁面变化对非线性表面波的影响。
Fem equation of fluid - solid coupled vibration was constituted by analyzing fem equation of incompressible viscosity fluid and elastomer . based on the equation , vibration characteristics of vane in the air and frequency and swing of fluid - solid coupling vibration are calculated by using ansys 本论文通过对不可压缩粘性流体的有限元方程和弹性体振动的有限元方程的分析，得到了弹性体与粘性流体流固耦合的有限元方程。
The outstanding benefit of this construction is the straight liquid passage which is - from a fluidic point of view - especially advantageous for suspensions , viscous or abrasive fluids as well as such not being allowed to be exposed to gravity or containing solids 这种泵的设计上的显著优点是其直线的流通通道，从流体的角度看，这一点在处理悬浮液、粘性流体或有磨蚀性流体，以及不能暴露在重力下或含有固体的的流体时特别有利。
The flow past a uniform circular cylinder is studied in detail by direct numerical simulations of three - dimensional incompressible navier - stokes equations . the features and dynamics for various reynolds numbers in the three - dimensional transition regime of the cylinder wake are investigated 本文以三维不可压缩粘性流体的navier - stokes方程为数学模型对圆柱绕流问题作直接数值模拟，研究圆柱尾迹三维转捩区间转捩特征和动力学过程。
This dissertation has on the research and design of a micro turbine engine as background and it is for the purpose of comprehending viscous flow behaviors in micro scaled conditions and that in the mini - turbine cascades . a mini wind tunnel is designed and set up which also can be used in other micro flow experiments . on the basis of this mini wind tunnel , three mini flow experiments , including micro jet experiment , micro boundary layer experiment and mini - turbine cascades experiment , have been carried out 本文以某型微型涡轮喷气发动机研制为背景,以认识微尺度下粘性流体流动状态及其机理和微涡轮叶栅通道内部流动特性为目的,设计并搭建了除本实验外还可供其他流体力学实验使用的微型风洞,并在该微型风洞基础上进行了微尺度射流实验、微尺度壁面边界层实验和微尺度涡轮叶栅实验。
