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A multi-block multigrid method for the solution of the Euler and Navier-Stokes equations for three-dimensional flows
- Source :
- 29th Aerospace Sciences Meeting.
- Publication Year :
- 1991
- Publisher :
- American Institute of Aeronautics and Astronautics, 1991.
-
Abstract
- A multi-block multigrid method for the solution of the three-dimensional Euler and Navier-Stokes equations is presented. The basic flow solver is a cell-vertex method which employs central-difference spatial approximations and Runge-Kutta time stepping. The use of local time stepping, implicit residual smoothing, multigrid techniques, and variable-coefficient numerical smoothing results in an efficient and robust scheme. The multi-block strategy places the block loop within the Runge-Kutta loop such that accuracy and convergence are not affected by block boundaries. This has been verified by comparing the results of one- and two-block calculations in which the two-block grid is generated by splitting the one-block grid. Results are presented for both Euler and Navier-Stokes computations of wings and wing-fuselage combinations.
- Subjects :
- business.industry
Semi-implicit Euler method
Mathematical analysis
Computational fluid dynamics
Computer Science::Numerical Analysis
Backward Euler method
Mathematics::Numerical Analysis
Euler equations
Euler method
symbols.namesake
Runge–Kutta methods
Multigrid method
symbols
Euler's formula
business
Mathematics
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- 29th Aerospace Sciences Meeting
- Accession number :
- edsair.doi...........d8364cd2fe17fd1a14a3fe696de00cbb