A pressure-based composite grid method for the Navier-Stokes equations
- Univ. of Florida, Gainesville (United States)
In this work, a pressure-based composite grid method is developed for solving the incompressible Navier-Stokes equations on domains composed of an arbitrary number of overlain grid blocks, where a conservative internal boundary scheme is devised to ensure that global conservation is maintained. Issues concerning the difference between the conservative internal boundary scheme developed for the pressure correction method with a staggered grid and that commonly used for density-based methods for compressible flow with nonstaggered grids are discussed. An organizational scheme is developed in order to provide a general and more flexible means for handling arbitrarily overlain grid blocks. Applications of the composite grid method to various model problems with complex geometry are used to illustrate the characteristics of the present procedure.
- OSTI ID:
- 5768536
- Journal Information:
- Journal of Computational Physics; (United States), Journal Name: Journal of Computational Physics; (United States) Vol. 107:2; ISSN 0021-9991; ISSN JCTPAH
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
420400* -- Engineering-- Heat Transfer & Fluid Flow
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
CALCULATION METHODS
COMPRESSIBLE FLOW
COMPUTERIZED SIMULATION
DIFFERENTIAL EQUATIONS
EQUATIONS
FINITE DIFFERENCE METHOD
FLUID FLOW
ITERATIVE METHODS
MESH GENERATION
NAVIER-STOKES EQUATIONS
NUMERICAL SOLUTION
PARTIAL DIFFERENTIAL EQUATIONS
SIMULATION