The role of vision in face-to-face and mediated communication.
The role of vision in face-to-face and mediated communication.
复制标题
视觉在面对面和中介交流中的作用。
DOI：
10.1016/0045-7825(91)90199-g
复制
发表时间：
1997
影响因子：
7.2
通讯作者：
Brid O'Conaill
中科院分区：
文献类型：
--
作者：
S. Whittaker;Brid O'Conaill
本文提出了一种近似稳态流动条件下对流输送的有效方法。该程序结合了三个简单的离散计划，即二阶迎风，中央和一阶迎风差分，它们之间的切换由对流有界性标准控制。所得的复合格式是稳定的，保守的，易于实现的多维流动的模拟。三个测试用例，两个线性和一个非线性，被用来评估该方法的性能，并与QUICK和一阶迎风格式进行了比较。算例结果表明，该格式在保持陡梯度低色散的同时，严格保持了解的有界性，对线性和非线性问题都适用.
The paper presents an effective procedure for approximating convective transport in steady-state flow conditions. The procedure combines three simple discretization schemes, that is, the second-order upwind, central and first-order upwind differencing, the switch between them being controlled by a convection boundedness criterion. The resultant composite scheme is stable, conservative and easy to implement for the simulation of multi-dimensional flows. Three test cases, two linear and one nonlinear, are used to assess the performance of the method, and comparisons are made with QUICK and the first-order upwind scheme. The test problem results demonstrate that the present scheme strictly preserves the boundedness of solutions while maintaining low dispersion of steep gradients, and it is applicable to both linear and nonlinear problems.