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Three-dimensional separated viscous flow analyses
| Content Provider | Semantic Scholar |
|---|---|
| Author | Carter, J. E. Davis, Roger L. Edwards, David E. Hafez, Mohamed M. |
| Copyright Year | 1986 |
| Abstract | The analysis of complex three-dimensional flows is a problem that continues to Challenge fluid dynamiclsts. Present day design techniques are primarily based on 2-D methodology; however, it is becoming increasingly clear that advanced aerodynamic designs will need to make greater use of the third dimension for flow control to achieve desired aerodynamic performance. In recent years significant advances have been made in the development of viscous flow analyses for 2-D separated flow. These methods are based on approaches ranging from numerical solutions of the NavlerStokes equations to solutions of the governing equations of Interacting Boundary Layer Theory (IBLT). The latter approach has been demonstrated to be particularly attractive due to its efficiency and capability to capture the fine length scales in the viscous region while simultaneously solving the global inviscid region. Numerous problems have been solved (e.g. see Refs. I-2) with IBLT such as transitional separation bubbles, transonic shock induced separated flow, and subsonic hoattail separated turbulent flow. Despite these advances for 2-D flow, the more physically realistic occurrence of separation in three dimensions is only now beginning to be addressed. In this paper, which is a condensed version of Refs. 3 and 4~ results of recent research efforts on the development of analyses for 3-D separated flows are presented. This work is being pursued through the development of an analysis based on IBLT as well as a more generalized technique based on a stream fnnction-vorticity formulation. The latter approach is an attempt to develop an efficient Navier-Stokes solution technique using, where appropriate, IBLT concepts. NUmerical comparisons are presented between these two techniques for a closed 3-D laminar separation bubble. |
| Starting Page | 147 |
| Ending Page | 153 |
| Page Count | 7 |
| File Format | PDF HTM / HTML |
| DOI | 10.1007/BFb0041780 |
| Alternate Webpage(s) | https://page-one.springer.com/pdf/preview/10.1007/BFb0041780 |
| Alternate Webpage(s) | https://doi.org/10.1007/BFb0041780 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
