BOUNDARY CONDITIONS IN LATTICE GAS WITH CONTINUOUS VELOCITY
BOUNDARY CONDITIONS IN LATTICE GAS WITH CONTINUOUS VELOCITY
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连续速度晶格气体的边界条件
DOI：
10.1142/s0129183198001138
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发表时间：
1998
期刊：
影响因子：
--
通讯作者：
H. Ohashi
中科院分区：
文献类型：
--
作者：
Y. Hashimoto;Yu Chen;H. Ohashi
我们所采用的模型叫做“流体动力学格子气”，即一种具有连续速度的格子气。该模型描述了自然的能量守恒，使用创新的碰撞和传播方案。因此，与FHP模型相比，粒子在边界上的操作变得更加灵活和复杂。我们需要注意处理单个颗粒的方式。重点放在速度和坐标的粒子，将返回从边界到系统，我们介绍了一个合理的操作，可以设置温度和流速的任何值所需的边界条件。数值计算表明，采用新的边界格式可以很好地控制这些参数。
The model we have adopted is called "Hydrodynamic Lattice Gases", that is, a kind of lattice gas with continuous velocity. This model describes the conservation of energy naturally, using innovative collision and propagation schemes. As a result, operations of particles on the boundary become more flexible and complicated as compared with those of the FHP model. And we need to pay attention to the way of treating individual particles. Focusing on the velocity and the coordinates of particles that will return from the boundary to the system, we introduce a reasonable operation that can set temperature and flow velocity of any value required as boundary conditions. Numerical calculations show that those parameters are well controlled using a new boundary scheme.