Abstract
dc:description.abstract<p>The stability of stagnation point flow has long been recognized as an important problem in aerodynamic analysis. Boundary layer disturbances located near the stagnation line can have a significant effect on the overall properties of an airfoil. One example of current interest is the analysis of unsteady multi-phase stagnation flows for application to problems involving aircraft icing. In this study, numerical methods which can be used to address the stability and non-parallel unsteady development of such stagnation point problems are investigated for linearized single phase aerodynamic flows using both two-dimensional and three-dimensional methods. A streamfunction-vorticity formulation is evaluated for two-dimensional linearized stagnation flows. In addition, a primitive variable formulation is developed for three-dimensional linearized stagnation flows. The two methods are tested for grid refinement, and results obtained using the three-dimensional method are compared with those from the two-dimensional method. As expected, it is found that three-dimensional disturbances decay at a faster rate than two-dimensional ones.</p>
Degree
thesis:*- Name thesis:degree_name
- Master of Science
- Level thesis:degree_level
- thesis
- Discipline thesis:degree_discipline
- Aerospace Engineering
- Year dc:date.issued
- 2006
Author and committee
dc:creator, dc:contributor.*- Author dc:creator
-
- Rider, Benjamin
Rights
- Language dc:language.iso
- en
Identifiers
dc:identifier.*- Identifier
- archive/lib.dr.iastate.edu/rtd/19033/
- OAI identifier oai:identifier
- oai:dr.lib.iastate.edu:20.500.12876/72999