本文对一类非线性抛物型方程提出对称修正有限体积元方法,给出能量模最优阶误差估计,并证明了对称修正有限体积元方法的解与一般有限体积元方法的解之差是一个更高阶项。
In this paper, we present a kind of symmetric modified finite volume element method for nonlinear parabolic problems, and give the optimal order energy norm error estimates for full discrete schemes.
采用有限元方法分析了颗粒增强铁基复合材料强度和应力与颗粒形状、尺寸以及体积分数的关系。
The finite element method is used to analyze the relationship between strength and stress of the particle reinforced iron matrix composites and the shapes, sizes and fraction volume of the particles.
与有限元方法相比,有限体积法保持物理量的局部守恒性质,并且计算更加简单。
Compared with finite element method, the finite volume method maintains the local conservation properties of physical quantities and has a simpler calculation.
运用一种基于全量理论的多步有限元方法计算分析了金属体积成形过程。
The bulk metal forming processes are calculated and analyzed by using a multi - step finite element method (FEM) based on deformation theory of plasticity.
介绍了用有限体积时间推进法进行以蒸汽为介质的蒸汽透平叶片排全三元粘性流场的计算方法。
This paper gives a brief description of the method for calculating three dimensional viscous flow field of a steam turbine blade row with the use of a finite volume time marching method.
本文系统地介绍了数值计算中的各种方法,主要有有限体积法、自适应网格、有限分析法、有限元法等。
Some kinds of numerical computation methods are recommended systematically including finite volume method, finite analysis method, finite element method and self-fit mesh method.
分析讨论了影响材料体积变化的三个主要因素:有限元网格变形及网格重划、增量步长、惩罚因子,并给出了相应的控制方法。
Three main factors are discussed in detail: deformation of finite element mesh and remeshing, incremental step length, penalty coefficient. Moreover the control ways are provided.
应用有限元方法计算了重建数字岩心与真实数字岩心的体积模量和地层因素。
The bulk modulus and formation factors of those 3d digital cores were simulated by finite element method.
将有限体积和有限元方法相结合,解决对流扩散方程问题,并给出了稳定性分析。
In this paper, finite bulk-finite element means is presented for solving convection-diffusion problem, moreover give out the stability analysis.
本文中我们采用扩展混合有限元方法和混合体积元方法数值模拟了二阶拟线性抛物型积分微分方程和二阶拟线性抛物问题。
In this paper , we consider the Expanded Mixed Finite Element Method and mixed covolume method for the quasilinear parabolic integro-differential equation and quasilinear parabolic problem.
研究金属塑性成形规律的理论方法现在有主应力法、上限法、滑移线法、有限元法和有限体积法。
The basic theoretical methods such as Slab method, UBET, Slip Line method, FEM, and FVM have been used in the research of metal plastic forming technology.
介绍了大体积混凝土温度场计算的有限元方法,及考虑冷却水管作用的温度场计算的有限元方法。
Finite element methods to calculate the temperature field in mass concrete with and with out cooling pipes is also discussed.
有限体积法现在已经成为和有限元方法并驾齐驱的一种求解偏微分方程的数值方法。
As the same as finite element method, the finite volume method is also a numerical method for solving partial differential equations.
运用一种基于全量理论的多步有限元方法计算分析了金属体积成形过程。
The Research on Adaptive Reproducing Kernel Particle Method in the Metal Forming Process;
运用一种基于全量理论的多步有限元方法计算分析了金属体积成形过程。
The Research on Adaptive Reproducing Kernel Particle Method in the Metal Forming Process;
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