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Turbulent flow calculations using unstructured and adaptive meshes
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Mavriplis, Dimitri J. |
| Copyright Year | 1990 |
| Description | A method of efficiently computing turbulent compressible flow over complex two dimensional configurations is presented. The method makes use of fully unstructured meshes throughout the entire flow-field, thus enabling the treatment of arbitrarily complex geometries and the use of adaptive meshing techniques throughout both viscous and inviscid regions of flow-field. Mesh generation is based on a locally mapped Delaunay technique in order to generate unstructured meshes with highly-stretched elements in the viscous regions. The flow equations are discretized using a finite element Navier-Stokes solver, and rapid convergence to steady-state is achieved using an unstructured multigrid algorithm. Turbulence modeling is performed using an inexpensive algebraic model, implemented for use on unstructured and adaptive meshes. Compressible turbulent flow solutions about multiple-element airfoil geometries are computed and compared with experimental data. |
| File Size | 1248855 |
| Page Count | 28 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19910000697 |
| Archival Resource Key | ark:/13960/t1vf1r24m |
| Language | English |
| Publisher Date | 1990-09-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Turbulent Flow Two Dimensional Models Steady State Finite Element Method Navier-stokes Equation Flow Equations Algorithms Airfoil Profiles Flow Distribution Inviscid Flow Mathematical Models Computational Grids Grid Generation Mathematics Compressible Flow Viscous Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
