Assessment of grid interface treatments for multi-block incompressible viscous flow computation
type: Item
instance of: scholarly article
title: Assessment of grid interface treatments for multi-block incompressible viscous flow computation
zbMATH Open document ID: 0888.76057
DOI: 10.1016/S0045-7930(96)00022-9
author: J. Liu
author: W. Shyy
published in: Computers and Fluids
publication date: 1997-10-20T00:00:00Z
review text: The paper analyses the interface treatment for multi-block solutions of the Navier-Stokes equations, with a solution based on a pressure correction method, discretized on a non-orthogonal grid. Investigated is the coupling with Neumann boundary conditions on both grid blocks, and, in a second approach, with Neumann-Dirichlet boundary conditions. According to the authors, the Neumann-Dirichlet boundary conditions allow more flexible grid arrangements and better pressure coupling between the grid blocks, while the accuracy for both conditions tested is comparable. Mass conservation across the interfaces is reported to be critical for convergence and accuracy of the solution. The multi-block solution is applied to the simulation of the two-dimensional flow in a hydraulic turbine distributor.
Mathematics Subject Classification ID: 76M20
Mathematics Subject Classification ID: 76D05
zbMATH DE Number: 1076590
zbMATH Keywords: mass conservation
zbMATH Keywords: pressure correction method
zbMATH Keywords: non-orthogonal grid
zbMATH Keywords: Neumann boundary conditions
zbMATH Keywords: Neumann-Dirichlet boundary conditions
zbMATH Keywords: convergence
zbMATH Keywords: multi-block solution
zbMATH Keywords: hydraulic turbine distributor
describes a project that uses: CMPGRD
MaRDI profile type: Publication
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description: scientific article; zbMATH DE number 1076590