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A multiblock multigrid three-dimensional euler equation solver
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Vonlavante, E. Elmiligui, Alaa Melson, N. Duane Cannizzaro, Frank E. |
| Copyright Year | 1990 |
| Description | Current aerodynamic designs are often quite complex (geometrically). Flexible computational tools are needed for the analysis of a wide range of configurations with both internal and external flows. In the past, geometrically dissimilar configurations required different analysis codes with different grid topologies in each. The duplicity of codes can be avoided with the use of a general multiblock formulation which can handle any grid topology. Rather than hard wiring the grid topology into the program, it is instead dictated by input to the program. In this work, the compressible Euler equations, written in a body-fitted finite-volume formulation, are solved using a pseudo-time-marching approach. Two upwind methods (van Leer's flux-vector-splitting and Roe's flux-differencing) were investigated. Two types of explicit solvers (a two-step predictor-corrector and a modified multistage Runge-Kutta) were used with multigrid acceleration to enhance convergence. A multiblock strategy is used to allow greater geometric flexibility. A report on simple explicit upwind schemes for solving compressible flows is included. |
| File Size | 621088 |
| Page Count | 12 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19910012482 |
| Archival Resource Key | ark:/13960/t6j14zc75 |
| Language | English |
| Publisher Date | 1990-01-01 |
| Access Restriction | Open |
| Subject Keyword | Numerical Analysis Predictor-corrector Methods Computational Fluid Dynamics Euler Equations of Motion Runge-kutta Method Flux Vector Splitting Finite Volume Method Time Marching Boundary Conditions Computational Grids Grid Generation Mathematics Convergence Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
