1) approximate artificial boundary condition
近似人工边界条件
1.
In this paper,a high-order approximate artificial boundary condition of Poisson equation with an exterior domain is investigated,and the error estimates for the solution of finite element approximation,which is based on the approximate artificial boundary condition,are given.
研究泊松方程外区域问题的高阶近似人工边界条件，并给出了利用此人工边界条件时有限元逼近的误差估计式。
3) dynamic approximate boundary conditions
动态近似边界条件
1.
Different from the traditional method in which unsteady flow field is calculated by recreating or deforming meshes at each time-step, dynamic approximate boundary conditions are satisfied on the stationary inner boundary so that only one set of mesh is needed in the present numerical method.
发展了一种利用欧拉方程计算非定常气动力的数值方法,通过在固定物面边界上满足动态近似边界条件计算出非定常气动力,避免了在每个时间步重新生成网格或需用动网格技术进行网格变形处理过程,提高了计算效率。
4) artificial boundary conditions
人工边界条件
1.
Two local artificial boundary conditions—viscous artificial boundary condition and viscous-spring artificial boundary condition,are widely used for soil-structure dynamic interaction analysis in time domain finite element method for their good feasibilityf,ine precision and high numerical stability features.
对于局部人工边界条件中的黏性人工边界条件与黏弹性人工边界条件,由于其具有易于实现、精度较好、稳定性较高的特点,目前在时域有限元法中得到广泛的应用。
2.
The artificial boundary conditions, the coupling of finite and natural boundary elements, the domain decomposition methods and other related computational methods are discussed and compared.
介绍了自然边界归化理论与D-N边界积分算子,圆周、椭圆周与球面上的人工边界条件,及自然边界 元与有限元耦合算法、区域分解算法和其它相关的计算方法,并对这些数值方法进行了分析比较。
5) artificial boundary condition
人工边界条件
1.
In this paper, the state-of-the-art review of two-phase media dynamic problems is updated, including kinetic differential equations, wave properties, analytical and numerical methods, and artificial boundary conditions involved in numerical methods.
本文回顾了两相多孔介质研究的历史 ,包括基本运动微分方程 ,两相介质中弹性波的传播性质 ,两相介质动力问题的解析方法及数值方法 ,以及数值方法中涉及的人工边界条件。
2.
Numerical examples are presented and effectiveness of these artificial boundary conditions is demonstrated.
在圆形的人工边界上 ,得到了三类等价的完全无反射的人工边界条件 。
3.
Major results of recent researches on the numerical simulation of wave motion generated by a wave source (or a scatterer) in its neighborhood are reviewed with emphasis on the progress in studies on the artificial boundary condition——the key problem in the numerical simulation.
本文评述了近年来波源（或散射体）及其邻域内波动数值模拟的主要研究结果，着重讨论了人工边界条件这一关键问题的研究进
6) viscous-spring artificial boundary condition
粘-弹性人工边界条件
1.
Effects of dam-water-foundation dynamic interaction and using viscous-spring artificial boundary condition on the normal bounding surface of the foundation have been considered in the course of the seismic response analysis on Wudongde arch dam.
在对乌东德拱坝进行动力时程分析过程中,考虑了坝体—库水—地基的动力相互作用和地基法向边界面上采用粘-弹性人工边界条件两方面的影响,与常规无质量地基模型的计算结果对比,流固耦合和地基辐射阻尼能使坝体的动力响应值分别降低20%和15%左右,地基辐射阻尼对乌东德拱坝动力响应的影响不显著。
补充资料：边界条件
分子式：
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性质：当用一个微分方程描述一个化工设备的特性和各种参数间的关系时，求解这个方程必需知道这个设备的起始边界（如入口处）和终止边界（如出口处）的状态（如温度、压力、浓度等）。这些状态参数的大小称为边界条件。
分子量：
CAS号：
性质：当用一个微分方程描述一个化工设备的特性和各种参数间的关系时，求解这个方程必需知道这个设备的起始边界（如入口处）和终止边界（如出口处）的状态（如温度、压力、浓度等）。这些状态参数的大小称为边界条件。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条