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1)  moving boundary condition
移动边界条件
1.
The calculations used a moving boundary condition and a unified solid curved wall boundary condition based on interpolation and a momentum balance on the wall to calculate steady and unsteady flows.
采用基于插值公式及固壁处动量平衡的弯曲固壁统一边界条件和移动边界条件,对具有圆、椭圆、互垂直双椭圆等3种不同截面形状转轴的微型泵内部流动进行了定常与非定常的计算,得到了微型泵进出口处平均压差、出口处平均量纲一化速度随时间的演化过程。
2)  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。
3)  displacement boundary condition
位移边界条件
1.
Study on Fitting Initial Geostress Field With Displacement Boundary Conditions;
采用位移边界条件拟合初始地应力场的研究
2.
In this paper,according to the elastic solution in an exterior circle domain from the natural boundary element method,we analyze displacement fields,strain fields and stress fields with any displacement boundary conditions,and compare them with theory solutions.
根据自然边界元方法给出的圆外弹性问题应力解答,利用Poisson积分公式和自然边界积分方程求出多种形式位移边界条件下的位移场、应变场和应力场,并分析了位移边界条件对应力场的影响。
3.
Since the meshless method has defects in treating displacement boundary conditions and lacks computational efficiency,a simple and practical method is proposed for the treatment of boundary conditions.
针对无网格法位移边界条件处理困难和计算效率低的问题,提出了一种简洁实用的边界条件处理方法。
4)  displacement boundary conditions
位移边界条件
1.
By establishing displacement optimization function based on some measured geostresses,a new approach of getting initial geostress field in the whole interested region is represented,which adjusts displacement boundary conditions automatically and make full use of 3-D finite element calculation.
采用优化位移边界条件拟合工程区域初始地应力场,根据实测地应力资料建立针对所施加的任一边界位移模式的优化函数,不断调整位移边界模式并通过有限元数值计算,最终得到边界位移模式的最优组合和工程区域初始地应力场,从而为初始地应力场的反演分析提供一个新的途径。
5)  no-slip boundary conditions
无滑移边界条件
6)  transfer of frontier conditions
边界条件转移
补充资料:边界条件
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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。

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