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Improved computational treatment of transonic flow about swept wings
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Bailey, F. R. Ballhaus, W. F. Frick, J. |
| Copyright Year | 1976 |
| Description | Relaxation solutions to classical three-dimensional small-disturbance (CSD) theory for transonic flow about lifting swept wings are reported. For such wings, the CSD theory was found to be a poor approximation to the full potential equation in regions of the flow field that are essentially two-dimensional in a plane normal to the sweep direction. The effect of this deficiency on the capture of embedded shock waves in terms of (1) the conditions under which shock waves can exist and (2) the relations they must satisfy when they do exist is emphasized. A modified small-disturbance (MSD) equation, derived by retaining two previously neglected terms, was proposed and shown to be a consistent approximation to the full potential equation over a wider range of sweep angles. The effect of these extra terms is demonstrated by comparing CSD, MSD, and experimental wing surface pressures. |
| File Size | 508753 |
| Page Count | 10 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19770003406 |
| Archival Resource Key | ark:/13960/t3sv2cd40 |
| Language | English |
| Publisher Date | 1976-01-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Perturbation Theory Sweep Angle Shock Waves Transonic Flow Fluid Dynamics Supercritical Flow Swept Wings Finite Difference Theory Pressure Distribution Mathematical Models Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
