Mixed Volume Element-Characteristic Fractional Step Difference Method for Contamination from Nuclear Waste Disposal
作者: Changfeng LiYirang YuanTongjun SunQing Yang
作者单位: 1Shandong University
2Shandong Normal University
刊名: Journal of Scientific Computing, 2017, Vol.72 (2), pp.467-499
来源数据库: Springer Nature Journal
DOI: 10.1007/s10915-017-0365-3
关键词: Nuclear waste disposal contamination in porous mediaMixed volume element-characteristic fractional stepLocal conservation of massSecond order error in \(L^2\)Numerical experiment65M1565N3065N1276S05
原始语种摘要: A nonlinear system with boundary-initial value conditions of convection–diffusion partial differential equations is presented to describe incompressible nuclear waste disposal contamination in porous media. The flow pressure is determined by an elliptic equation, the concentrations of brine and radionuclide are formulated by convection–diffusion equations, and the transport of temperature is defined by a heat equation. The pressure appears in convection–diffusion equations and heat equation in the form of Darcy velocity and controls the physical processes. The fluid pressure and velocity are solved by the conservative mixed volume element and the computation accuracy of Darcy velocity is improved one order. A combination method of the mixed volume element and the approximation of...
全文获取路径: Springer Nature  (合作)
影响因子:1.71 (2012)

  • equation 方程
  • waste 岩屑
  • disposal 处理
  • convection 对流
  • result 成果
  • contamination 混合
  • initial 开首字母
  • element 元素
  • fractional 分级的
  • characteristic 特有的