考虑基于外心对偶剖分的椭圆型与抛物型方程的有限体积元法。
We considered the finite volume element methods (FVM) based on circumcenter dual subdivision for the elliptic equations and parabolic equations.
采用有限体积元法对计算区域进行迭代计算,并得到了流场的分布。
The calculation is performed by finite volume method, and fluid field distribution is obtained.
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.
边界界面动态接触约束与接触判断是3维复杂体积成形有限元数值模拟的关键技术问题之一。
One of the key technique problems is boundary dynamic contact constraint and contact judgment in FEA simulation for 3d complicated massive forming.
本文主要介绍有限体积法和有限元法之间的一些相同点和不同点。
This article mainly introduces some similarities and differences between finite volume method and finite element method.
最后用有限控制体积法和伽略金有限元法对变换后的方程进行数学离散并求解。
With discrete mathematical method, the transformed equation is solved by finite control volume method and Galerkin finite element method.
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.
介绍了声学有限元法和有限体积法的基本原理及相应的商业软件SYSNOISE和FLUENT。
The fundamental theories of acoustic finite element method and finite volume method, as well as the related software SYSNOISE and FLUENT are introduced.
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.
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.
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.
另外,提供了扬压力等效结点荷载的体积分有限元计算公式,探讨了坝后冲刷坑对抗滑稳定的影响。
Meanwhile, the fe formula of volume integration is provided to calculate equivalent nodal loads of uplift and the effect of the scour pole behind dam on sliding stability studied.
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.
局部隐式有限元法是在一般有限元法的基础上,兼容了TVD差分格式和有限体积法的某些特点,形成的一种新型算法。
A new algorithm, locally twitch finite element method is developed on the base of the general finite element method, mixed with total-variation-diminishing (TVD) scheme and the finite volume method.
运用体积开裂概率分析了大体积混凝土结构的抗裂可靠性,并结合有限元法对控制裂缝设计与施工进行了研究。
The paper analyses the anti cracking reliability in massive concrete structure with the concept of overall crack probability, presenting the cracking control design and construction combined with FEM.
目的通过对火车轮轴在复杂载荷作用下的有限元分析,实现火车轮轴结构与体积的优化。
Aim To realize optimized construction and volume of rail wheel and axle in complex loads with finite element analysis.
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.
此文提出了适用于金属体积成形过程有限元模拟的约束处理算法。
A new method for the treatment of constraints in finite element simulation of metal forming is put forward.
针对粉末多孔材料,采用体积可压缩刚粘塑性热力耦合有限元法对其等径角挤压过程进行模拟分析。
The densification and deformation behavior of porous materials during the ECAP process were investigated by (thermo -) mechanical coupling finite element method.
利用有限元分析软件ANSYS中优化分析模块,对潜艇电机段壳体的圆柱型壳体的刚度和体积进行优化。
Use optimization module of ANSYS, to optimize rigidity and volume of the cylinder type shell of electrical machine of submarine.
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.
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.
该性能模型对基于有限元、有限体积等其他局部离散格式的大型并行计算应用的负载平衡能力评估也具有参考价值。
And the model given in this paper is also useful for those parallel applications with local schemes such as finite element and finite volume.
在有限元的后处理阶段,采用了体积平均法求解平均应变。
Volume average method is adopted to calculate the average stain of the sample in the post process of FEM.
在有限元的后处理阶段,采用了体积平均法求解平均应变。
Volume average method is adopted to calculate the average stain of the sample in the post process of FEM.
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