动力边界条件 meaning in Chinese
dynamic boundary condition
dynamical boundary condition
kinetic boundary condition
Examples
- The dynamic boundary conditions of transversely isotropic stratified media
横观各向同性层状场地的动力边界条件 - Dynamic boundary condition
动力边界条件 - 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。