粘性流动

应用Navier-Stokes方程的叶栅粘性流动数值分析

Numerical analysis of cascade viscous flow using the Navier-Stokes equations

从N－S方程出发，采用LU－ADI隐式分解方法求解绕翼型的可压缩粘性流动。

Compressible viscous flow around airfoils , using LU ADI factorization difference method based on N S equations was computed .

不可压粘性流动N－S耦合方程的有限元解法&I理论

Finite element method for unsegregated Navier-Stokes equations of incompressible viscous fluid flow-I theory

迎风型TVD格式在高速进气道粘性流动模拟中的应用

Application of upwind TVD scheme to numerical simulation of supersonic inlet

本文通过数值求解Navier-Stokes方程，计算了跨音速压气机转子叶排内三维非定常粘性流动。

Through solving the Navier-Stokes equation , three dimensional transonic unsteady flow in isolated rotor blade was simulated .

用数值计算方法研究离心叶轮内流场的三维粘性流动.在流场计算中，利用有限体积法对三维NS方程组进行差分离散，并应用SIMPLER算法来求解。

In the calculation of flow field , the 3D N S equations are separated by finite volume method and the improved SIMPLER method .

TVD格式在超音速喷管三维粘性流动求解中的应用

Application of TVD Scheme in Computation of Three Dimensional Viscous Flows in a Supersonic Nozzle

晶界玻璃相的高温粘性流动在SiC晶粒之间形成桥架结构，提高了两者之间的粘结能力；

The neck-bridging structure exists among the SiC grains due to the viscous flow of the grain-boundary phase at high temperatures , which helps to improve the binding behaviour .

使用FLUENT软件对某型跨音速涡轮叶栅的导叶进行了S1流面的粘性流动计算。

The present paper computed the viscous flow of S1 flow surfaces in some transonic turbine vane cascade by using the computational software FLUENT .

本文以时间相关显式格式求解完全的Navier-Stokes方程，计算了二维叶栅中的粘性流动。

An explicit , time-marching , numerical technique for the computation of cascade viscous flows through the solution of the complete Navier-Stokes equations is presented .

本文使用三维粘性流动计算软件Fine／Numeca，对某十五级轴流压气机进行了内流流场和全工况特性的数值计算尝试。

In this paper the internal flow and the overall performance of a fifteen stage axial compressor are calculated using NUMECA / FINE .

研究二维跨、超音速无粘性流动的Euler方程区域分解方法、并行算法及其应用。通过内边界耦合条件实现相邻子区域解的光滑过渡，以得到总体流场的数值解。

The domain decomposition method and the parallel computing method are applied to a two dimensional Euler solver for transonic and supersonic flow using a PVM parallel environment .

由于PVC间、PVC熔体与加工机械金属表面间存在的摩擦力会降低熔体的粘性流动阻力，所以在PVC加工过程中加入润滑剂是必不可少的。

Essential lubricants are necessary in PVC processing because of the friction between the PVC , PVC melt and metal surfaces of processing machinery , which would reduce the viscosity of the melt flow resistance .

通过求解不可压缩流体RANS方程，对叶栅梢部与壁面之间的粘性流动进行数值模拟。

The tip clearance flow in a cascade was numerically simulated by solving the RANS equations of incompressible fluids .

本文在探讨塑料熔体粘性流动模型的基础上，使用幂律模型和Cross模型对几种塑料熔体流变数据进行处理，得出各自的拟合常数，并对拟合结果进行分析比较。

Based on the study of the flow model of plastics melt , Power-law Model and Cross Model were used to study the plastics melt Theological data and the regression coefficient was obtained , discussion on the results was also made .

对于超临界Strouhal数粘性流动，仅有在下游区域传播的二列波。

However , for the viscous flow with a super-critical Strouhal number , there exist two waves only , which propagate downstream .

最后，基于风力机翼型的无粘性流动模型与边界层模型之间的双耦合过程，应用MATLAB编写风力机翼型计算分析程序，对不同工况下的最佳翼型进行求解。

At last , Base on the coupling between the inviscid flow model and the boundary layer model to compile the aerodynamics solver software of airfoils for wind turbines by MATLAB . and then solve the optimal airfoils by using the aerodynamics solver software .

为了计算低速到超音速的无粘和粘性流动，综合CFD方法当前的研究成果，编制了CFD通用程序并且应用于流体机械的分析与设计。

A general CFD codes combining the recent achievements of CFD techniques is developed in order to compute inviscid and viscous flows from low speed to supersonic The present code is applied to the analysis and design of fluid machinery .

为提高LU-SGS格式在粘性流动计算中的效率和稳定性，引入粘性修正，给出了一种牛顿型LU-SGS迭代方法。

To improve the efficiency and stability for viscous flows , a viscous correction is introduced into LU-SGS scheme and a Newton-like scheme is obtained .

为了使STC格式能够有效地求解粘性流动的问题，本文构造出了求解曲线坐标系下的二维N－S方程的二阶STC格式。

In order to make the STC scheme an effective tool in numerical simulation of the viscous flow , the second - order STC scheme for solving two dimensional N-S equations in nonorthogonal curvilinear coordinates is constructed in this paper .

应用Galerkin有限元和Baldwin-Lomax湍流模型，求解射流泵内不可压粘性流动N-S耦合方程，得到了射流泵内部流动参数分布。

The Galerkin finite element method and Baldwin-Lomax turbulence model are employed to solve the coupled N-S equations for incompressible axis-symmetric flow in jet pumps . The parameter distribution of flow field is then obtained .

采用SIMPLE算法、S-A湍流模型求解了三维不可压雷诺平均N-S方程，数值模拟了绕飞艇的低速不可压粘性流动，计算了不同艇身外形的阻力特性。

In this paper , we utilize SIMPLE method and S-A turbulent model to solve the three-dimensional incompressible Reynolds-averaged N-S equation . The low speed incompressible viscous flow around airships is numerically simulated and the drag characteristics of different shapes are calculated .

近年来，应用CFD技术数值模拟约束船模试验的粘性流动，计算操纵运动水动力及水动力导数的数值方法已经有了重大发展，为船舶操纵性预报研究开辟了一条新途径。

During the last years , numerical methods using CFD technique to numerically simulate the viscous flow of captive model test and to determine the hydrodynamic forces and hydrodynamic derivatives of ship maneuvering motion already have significant development . They have provided a new way for predicting ship maneuverability .

本文提出了二阶全展开Euler-Taylor-Galerkin（ETG）有限元方法，并应用于对低雷诺数二维不可压缩粘性流动的模拟。

The second order full expansion Euler-Taylor-Galerkin finite element method and its appli-cation to the simulation of two dimensional incompressible viscous flow of low Reynolds number in complex geometry domain are presented .

实验发现，由于烧结过程中粘性流动烧结的发生，掺杂Co3O4后可在一定的温度范围内使样品致密度提高；

The results of the experiment indicate that the relative density of samples adulterated with Co_3O_4 can be enhanced within a certain temperature range , due to the presence of the viscous flow sintering .

本文给出了相对旋转坐标系下叶轮机械内部三维粘性流动的守恒型积分型方程组，利用DentonJ。

The integral equations governing the three-dimensional viscous flow inside the turbo-machinery in the rotating coordinate system are presented in this paper , the viscous effects are simulated by the distributed body force described by Professor Denton J.

结果表明：在1350℃真空烧结120min可以制备出相对密度为99·2%的GH4049粉末合金，合金的烧结致密化机理为颗粒重排与粘性流动。

The results show that the compacts with relative density over 99 % can be obtained by sintering at 1 350 ℃ for 120 min in vacuum . The densification mechanism is particle rearrangement and viscous flow .

格点Boltzmann方法是一种基于分子运动论的模拟粘性流动的数值方法，粒子平衡分布函数是这种方法中的重要物理量.本文利用Cbapman－Enskog展开求解粒子平衡分布函数。

The lattice Boltzmann method is a numerical scheme based on kinetic theory for modeling viscous flows . Particle equilibrium distribution functions are important physical quantities in the lattice Boltzmann method . In this paper , an approach of calculating the particle equilibrium distributions by Chapman-Enskog expansion is presented .

离心压缩机叶轮内三维粘性流动的数值计算

The Numerical Calculation of 3-D Viscous Flow in Centrifugal Compressor Impeller

高超声速喷管非平衡粘性流动的数值研究

Numerical Simulation of Non - equilibrium Viscous Flows in Hypersonic Nozzles