general boundary condition meaning in Chinese
广义边界条件
Examples
- The spectrum of transport operator with general boundary condition in slab geometry
板模型中一类带广义边界条件具各向异性迁移算子的谱 - According to the fundamental equations of elastic and electric fields , total potential energy for the electro - elastic laminate under general boundary conditions is established
引入了压电材料的空间等参数单元，并且从弹性力学与电学基础上，根据三维有限元法，建立了压电材料的能量泛函。 - In recent years , plentiful and substantial fruits achieved by the lb method in simulations of hydraulics , multiphase flows , flows in porous media and heat transfer as well as magnetohydrodynamics , have revealed a broad perspective of application of this method , it will become a powerful competitor to the conventional approaches . in order to absorb the recent achievement in theory and application of the lb method , explore new ways in hydraulic computation to promote the development of practice , some work is car ried out in this thesis , as following : advances in the theory research and application , deductive process of the d2q9 model and some other commonly used models of the lb method are summarized . based on the hydrodynamic and general boundary conditions , a new joint boundary condition is presented , it integrates advantage of the two conditions above and obtains very good results in dealing with all kinds of boundaries of flow fields
为了消化和吸收近年来lb方法在理论和应用方面的新成果，探索在水力计算方面的新途径以促进lb方法实用化的发展，本文进行了下列研究工作：综述了lb方法在理论研究和实际应用方面的新进展，以及d2q9模型的推导过程和其他一些常用的模型；在水动力边界条件和通用边界条件的基础上提出了一种新的联合边界条件方法，它综合了上述两种边界条件的优点，在流场的各种边界处理中取得了非常好的效果，经过模块化的处理以后这种边界条件具有更好的实用性；针对均匀网格的lb方法计算效率较低的不足，提出了双重网格的latticeboltzmann方法，通过二维poiseulle流动、后台阶流动和渠道方槽流动三个算例的模拟，证明这种方法能够明显地提高流场模拟的计算效率；此外，根据复杂区域流场的特征提出了latticeboltzmann方法的分块-耦合算法，利用lb方法的计算特性实现块与块之间的数据交换，充分利用计算资源提高计算效率，通过对“ t ”型、 “十”型和“ x ”型分岔管道流场的模拟，展示了这种算法的特征和优点，以及它所具有的应用前景。 - According to the stress and displacement variational principle , the mixed variational equations are established from which the state equation is established . thus , the theory of state space is combined with variational principle and the variational solutions are presented under arbitrary loads for transverse isotropic orthortropic bodies on general boundary conditions . thick plates on winkler ' s foundations are researched thoroughly
本文根据应力变分原理和位移变分原理，导出混合变分方程，并将其转换成状态方程，使状态空间理论和变分原理相结合，给出了一般边界条件下横观各向同性和正交各向异性体在任意荷载作用下的变分解。