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Finite element flow-thermal-structural analysis of aerodynamically heated leading edges
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Wieting, Allan R. Pandey, Ajay K. Dechaumphai, Pramote |
| Copyright Year | 1989 |
| Description | Hypersonic vehicles operate in a hostile aerothermal environment which has a significant impact on their aerothermostructural performance. Significant coupling occurs between the aerodynamic flow field, structural heat transfer, and structural response creating a multidisciplinary interaction. A long term goal of the Aerothermal Loads Branch at the NASA Langley Research Center is to develop a computational capability for integrated fluid, thermal and structural analysis of aerodynamically heated structures. The integrated analysis capability includes the coupling between the fluid and the structure which occurs primarily through the thermal response of the structure, because: (1) the surface temperature affects the external flow by changing the amount of energy absorbed by the structure, and (2) the temperature gradients in the structure result in structural deformations which alter the flow field and attendant surface pressures and heating rates. In the integrated analysis, a finite element method is used to solve: (1) the Navier-Stokes equations for the flow solution, (2) the energy equation of the structure for the temperature response, and (3) the equilibrium equations of the structure for the structural deformation and stresses. |
| File Size | 1217269 |
| Page Count | 20 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19890015827 |
| Archival Resource Key | ark:/13960/t6n061z7z |
| Language | English |
| Publisher Date | 1989-04-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Stresses Deformation Cowlings Temperature Gradients Fluid Flow Hypersonic Vehicles Jet Engines Finite Element Method Navier-stokes Equation Aerodynamic Heating Flow Distribution Leading Edges Heat Transfer Aerothermodynamics Structural Analysis Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
