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- The pulsating flow field was simulated by the large eddy turbulence model and the momentum equations were discretized with the unbounded central difference scheme. 脉动流场计算采用大涡模拟湍流模型,动量方程的离散格式采用有限中心差分格式。
- The spatial flux terms are discretized by using central difference scheme and the time integration is performed by using explicit scheme in the flow solver. 流场求解时采用中心差分的有限体积方法对空间通量项进行离散,采用显式推进方法进行时间方向的积分。
- Function to calculate the Jacobian matrix for a set of nonlinear algebraic equations. A simple central differencing scheme is used. 用来计算一套非线性代数方程的雅可比矩阵。使用一个简单微分方法。
- The central differencing scheme often leads to unstable numerical results in condition of coarse net.Several numerical models were discussed, including QUICK scheme. 摘要中心差分格式选用粗网格离散土壤水盐运移方程中的对流项时,数值解容易发生数值振荡。
- central difference scheme 中心差分格式
- central differencing scheme 中心差分格式
- It can be implemented by simple finite difference scheme with a significantly larger time step. 模型允许选取较大的时间步长,可以用简单的有限差分格式实现。
- The numerical simulation of this model was analyzed through first-order upwind difference scheme and QUICK scheme. 通过一阶迎风格式及QUICK格式,求解出该模型的数值解。
- A central difference is that the.NET Compact Framework is a subset of the full.NET Framework, and accordingly, some areas are not supported. 主要的不同之处在于;.;NET Compact Framework是
- A clase of leap-frog finite difference scheme with higher stability propertiesfor a hyperbolic equation Ut+aUx=0 are proposed in this paper. 本文提出了一种数值求解双曲方程Ut+aUx=0的高稳定性蛙跳显格式。
- In order to capture the shock wave, Murman Cole type of finite difference scheme is used to calculate spatial source distribution. 用 Murman- Cole差分格式计算空间场源强度 ,以捕捉激波。
- The energy equations of the oil film and the bush are solved simultaneously by using an efficient finite difference scheme. 用一有效的有限差分法同时求解油膜和轴瓦的温度控制方程。
- The numerical solution of incompressible viscous flow over an aerofoil is obtained by H-type grids and a special difference scheme. 本文用H型网格和特殊的差分格式数值求解了粘性不可压缩叶型绕流。
- Based on this method, a difference scheme is derived for the numerical solution of diffusion equation on the structured quadrilateral mesh. 在此基础上推导了在结构四边形网格上求解扩散方程的线性精确差分格式。
- A finite difference scheme based on semi-vectorial wave equations is used to study the dispersion properties of photonic crystal fibers (PCF). 采用基于半矢量波动方程的有限差分法研究了光子晶体光纤(PCF)的色散特性。
- Sets up three-dimensional movement modal of towed-cable, the vector dynamic equilibrium equation is expanded under local coordinate, and numerically discreted by central difference on time and space through transforming Eular angle. 摘要建立拖缆的三维运动模型,通过欧拉角的变换把拖曳线列阵微元段矢量动力平衡方程在局部坐标系下展开,在时间和空间上作中心差分数值离散。
- Key words Partial integro-differential equation fractional calculus nvolution quadrature finite difference scheme second order fully discrete scheme. 本刊中 包含“偏积分微分方程;分数次计算;卷积积分;差分格式;二阶全离散.
- The in viscid flux is discretized by AUSM+ scheme. The viscid flux is discretized by second-order central difference scheme. Baldwin-Lomax turbulence model is implemented in Navier-Stokes flow solver. 本文通过对AUSM+格式的应用研究,以Navier-Stokes/Euler方程为主控方程,利用无限插值理论生成结构网格,采用Baldwin-Lomax湍流模型,应用格心有限体积法,无粘通量项采用AUSM+格式离散,粘性通量项采用二阶中心差分格式离散,开发了跨音速定常、非定常流场解算器。
- This paper studies the necessary and sufficient condition of uniformly convergent difference scheme for the elliptic-parabolic partial differential equationwith a small parameter. 本文研究小参数椭圆-抛物偏微分方程一致收敛差分格式的充要条件。
- This paper generalizes the two dimensional Crank Nicholson difference scheme from constant coefficient to the condition of variable coefficient with interpolation by integral. 利用积分插值法,把二维Crank-Nicholson差分格式,由常系数推广到变系数情形。