1) 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。
3) 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。
4) Dynamic boundary condition
动态边界条件
1.
By introduction of the concept of dynamic boundary condition, the calculating process was divided into the simulation stage and real-time flood forecast and regulation stage, and different boundary conditions were adopted at different stages.
引入动态边界条件的概念,将计算过程分为模拟计算阶段与实时预报调度阶段,在实时洪水调度过程中根据计算的不同阶段采用相应的边界条件。
2.
Regarding gate movement as dynamic boundary condition of the canal flow,the mathematical model of the dynamic response of the canal with automatic upstream constant level control is established.
本文在分析灌溉渠道上游常水位闸门（即ＡＭＩＬ门）动态过程的基础上，建立了以闸门运动为动态边界条件的明渠非恒定流计算模型。
5) dynamic boundary condition
动边界条件
1.
Considering such dynamic boundary conditions of water cooling,air cooling,friction heat,deformation heat,and heat conduction between work roll and strip and so on,the varied-steplength analysis-calculation model of transient temperature field of roll during hot strip rolling was established by finite difference method.
考虑水冷、空冷、轧辊与轧件接触热传导等动边界条件,采用有限差分法,建立了热连轧轧辊瞬态温度场变步长分析计算模型。
2.
Comprehensivelyconsideringsuch dynamic boundary conditionsaswater cooling, aircooling, friction heat, deformation heat, and heat conduction between work roll and strip and so on, the analysis-calculation model of strip three-dimensional transient temperature field of work roll in hot tandem rolling is established with Finite-Difference-Method.
考虑水冷、空冷、摩擦热和变形热以及工作辊与轧件接触热传导等动边界条件,采用有限差分法,建立了热连轧工作辊三维瞬态温度场分析计算模型。
6) asymptotic boundary condition
渐近边界条件
1.
The open boundary field problem is transformed to the bounded field problem through setting artificially truncating boundary with asymptotic boundary condition.
通过设置人工截断边界 ,将开域电场问题转化成有界域电场问题 ,并在人工截断边界上采用渐近边界条件。
2.
In this paper,three types of asymptotic boundary conditions (ABC)are derived according to the general solution expansion of 2-D Laplace equation,and then these boundary conditions on the artificial circular boundary are respectively introduced into corresponding finite element varitional problems.
根据二维拉普拉斯方程的通解级数,推导出圆形人工边界上的零阶、一阶和二阶渐近边界条件,并将它们与有限元法结合,使得在求解区域不大情况下的二维静电场计算结果仍保持足够高的精度。
3.
Errors of the three asymptotic boundary conditions are analyzed.
用Fourier变换推导了强激光场中一维原子模型的渐近边界条件,分析了三类渐近边界条件的误差,用第一类渐近边界条件和非齐线性正则方程的辛算法计算了强激光场中一维氢原子的几率分布和平均能量,并将结果与理论分析进行了比较。
补充资料：边界条件
分子式：
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。
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