Adaptive numerical advection. The coordinate transformation equation method
作者: Martin Balluch
作者单位: 1Cambridge Centre for Atmospheric Science, University of Cambridge, Department of Applied Mathematics and Theoretical Physics, Silver Street, Cambridge, CB3 9EW, UK
刊名: Computer Physics Communications, 1995, Vol.89 (1), pp.91-117
来源数据库: Elsevier Journal
DOI: 10.1016/0010-4655(94)00188-8
原始语种摘要: Abstract(#br)In many hydrodynamical applications, advection is the most important dynamical process. Advected quantities typically develop greatly disparate spatial scales because of the inherent non-linearity of advection. A method is outlined how to tackle this process numerically. The basic idea of the coordinate transformation equation (CTE) method is to introduce a moving coordinate system in physical space before applying any discretisation. This keeps the problem of discretisation separate from the problem of adaptation. In the new coordinate system, which changes in time, the effects on the numerical representation of the advection terms are twofold. Firstly, the advection is with respect to a relative velocity between coordinates and flow, which is arranged to be less than the...
全文获取路径: Elsevier  (合作)
分享到:
来源刊物:
影响因子:3.078 (2012)

×
关键词翻译
关键词翻译
  • coordinate 坐标
  • advection 平流
  • transformation 变换
  • linear 线形的
  • smoothing 平滑
  • compression 压缩
  • velocity 速度
  • absolute 绝对的
  • equation 方程
  • moving 移动