Invention Grant
US07921001B2 Coupled algorithms on quadrilateral grids for generalized axi-symmetric viscoelastic fluid flows 有权
用于广义轴对称粘弹性流体的四边形网格的耦合算法

  • Patent Title: Coupled algorithms on quadrilateral grids for generalized axi-symmetric viscoelastic fluid flows
  • Patent Title (中): 用于广义轴对称粘弹性流体的四边形网格的耦合算法
  • Application No.: US11961851
    Application Date: 2007-12-20
  • Publication No.: US07921001B2
    Publication Date: 2011-04-05
  • Inventor: Jiun-Der Yu
  • Applicant: Jiun-Der Yu
  • Applicant Address: JP Tokyo
  • Assignee: Seiko Epson Corporation
  • Current Assignee: Seiko Epson Corporation
  • Current Assignee Address: JP Tokyo
  • Main IPC: G06G7/50
  • IPC: G06G7/50
Coupled algorithms on quadrilateral grids for generalized axi-symmetric viscoelastic fluid flows
Abstract:
The present invention is directed towards systems and methods for simulating and analyzing viscoelastic fluid flow. The fluid flows through a channel and is ejected from a channel. The fluid has an interface between a first fluid and a second fluid. The method includes performing finite difference analysis and using a level set projection method to solve equations governing the viscoelastic flow of the fluids through the channel. The equations governing the viscoelastic flow include an azimuthal velocity term that is an approximate description of the azimuthal flow of the fluid. The equations governing the viscoelastic flow also include an approximation of the stress experienced by the fluids being simulated. The equations governing the viscoelastic flow include an advection term that includes an azimuthal velocity term. The finite difference analysis used to solve the governing equations includes a second-order Godunov type upwind scheme to update the advection terms over time. The level set for the first and second fluids is updated periodically during the simulation.
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