Loading...
Please wait, while we are loading the content...
Similar Documents
H-p adaptive methods for finite element analysis of aerothermal loads in high-speed flows
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Chang, H. J. Tworzydlo, W. Oden, J. T. Bass, J. M. |
| Copyright Year | 1993 |
| Description | The commitment to develop the National Aerospace Plane and Maneuvering Reentry Vehicles has generated resurgent interest in the technology required to design structures for hypersonic flight. The principal objective of this research and development effort has been to formulate and implement a new class of computational methodologies for accurately predicting fine scale phenomena associated with this class of problems. The initial focus of this effort was to develop optimal h-refinement and p-enrichment adaptive finite element methods which utilize a-posteriori estimates of the local errors to drive the adaptive methodology. Over the past year this work has specifically focused on two issues which are related to overall performance of a flow solver. These issues include the formulation and implementation (in two dimensions) of an implicit/explicit flow solver compatible with the hp-adaptive methodology, and the design and implementation of computational algorithm for automatically selecting optimal directions in which to enrich the mesh. These concepts and algorithms have been implemented in a two-dimensional finite element code and used to solve three hypersonic flow benchmark problems (Holden Mach 14.1, Edney shock on shock interaction Mach 8.03, and the viscous backstep Mach 4.08). |
| File Size | 8665219 |
| Page Count | 294 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19930008904 |
| Archival Resource Key | ark:/13960/t6c29tc6q |
| Language | English |
| Publisher Date | 1993-01-01 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Heat Transfer Hypersonic Flight Computational Fluid Dynamics Hypersonic Flow Finite Element Method Navier-stokes Equation Algorithms Galerkin Method Computational Grids Thermal Stresses Compressible Flow Aerothermodynamics Mach Number Viscous Flow 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 |
