石油和化工中许多问题需要求解非牛顿流体偏心环空螺旋流。
Many problems in petroleum and chemical industry can be reduced to the solutions of the helical flow of Non-Newtonian fluid in eccentric annular space.
表皮系数和非牛顿流体幂律流指数对压力响应的影响有着明显的不同;
The effect of skin factor on transient was different from that of power index;
本文讨论了在一维情况下一类非牛顿流初边值问题整体解的存在唯一性。
In this paper, we prove the existence and uniqueness of global weak solution of non Newton Filtration equation with a kind of nonlinear boundary condition.
阐述了广义牛顿流体模型形式简单、计算量低,在非牛顿流体搅拌流场数值模拟过程中应用广泛;
The generalized Newtonian fluid models are commonly adopted in the numerical simulation for non-Newtonian fluid for their advantages of simpleness in form and low computational complexity.
提出了关于变偏心度环空中计算非牛顿流体在层流、过渡流及紊流状态下压降、流速的方法;给出了流场特性分析及数值模拟结果。
The method is presented to simulate pressure losses and flow velocities in skewed narrow annular geometries for laminar, transition and turbulent non-Newtonian flow.
非牛顿流体在地层中的粘度是一个随剪切速率变化而改变的非常数,反映在不稳定压力响应特性上表现出与牛顿流大不相同的特征。
Non-Newtonian fluid viscosity in the formation of a shear rate of change with variable, stress response reflected in the instability shown by different characteristics of Newtonian flow.
通过管中心和其它管线的速度变化趋势,以及圆管径向的速度分布,描述了流场的整体流动特性,揭示了非牛顿流体管道流的速度过冲和振荡现象。
They can easy show the behaviors of the flow in the whole cube, reveal the phenomenon of locity overshooting and damping oscillation of the flow.
而弹性储容比和窜流系数的影响和普通三重介质相同,只是由于非牛顿流体的影响其“凹陷”的位置升高;外边界的影响也和牛顿流体的情况明显不同。
The storativity ratio and inter-porosity flow factor is just same as the newtonian fluid, and the effect of outer-boundary on transient pressure is different from that of newtonian fluid.
讨论具有一般形式的对流项、扩散项、边界流项以及反应项的一维牛顿渗流方程初边值问题非负解的整体存在性。
The present paper studied the global existence of nonnegative solutions of one-dimensional Newtonian filtration equation with more general boundary fluxes term, reaction, diffusion and convection.
本文主要就全啮合同向双螺杆挤出机捏合块流道中熔体全充满区的流动进行了全三维非牛顿等温模拟。
This thesis concentrates on simulation of Non-Newtonian isothermal flow in kneading block in closely intermeshing co-rotating twin screw extruders.
利用A NSYS有限元分析软件对啮合同向双螺杆挤出机的螺纹元件流场进行了三维等温非牛顿模拟分析。
Three-dimensional flow simulations of the flight element in an intermeshing co-rotating twin screw extruder are performed by solving the Navier Stokes equations with a finite element package, ANSYS.
介绍了管流实验装置的设计及组成,并利用该实验装置对胜利原油的非牛顿管流特性进行了初步研究。
A pipe flow test apparatus, which is used to research the characteristics of non Newtonian fluids, was designed and constructed.
通过流变行为的研究,证明了尼龙1212熔体为假塑性非牛顿型流体,并求得了其粘流活化能。
The rheological study indicates that Nylon 1212 melt shows a non ?Newton and pseudoplastic fluid and the viscous flow activation energy has also been obtained.
通过流变行为的研究,证明了尼龙1212熔体为假塑性非牛顿型流体,并求得了其粘流活化能。
The rheological study indicates that Nylon 1212 melt shows a non ?Newton and pseudoplastic fluid and the viscous flow activation energy has also been obtained.
应用推荐