Borders of flow field around immersed bodies can be extended to long distances
since there are no physical boundaries. In computational practice however, the flow
domain must be restricted to a reasonable size by imposing appropriate boundary
conditions at the edges of the computational space. In this thesis work, streamlines
obtained from potential flow solution in a relatively large spatial domain are utilized
to specify the boundaries and boundary conditions for a more restricted
computational domain to be used for detailed viscous flow computations. A grid
generation code is adopted for generation of unstructured triangular grid systems for
domains involving multiple immersed bodies of any shape at arbitrary orientations
such as a group of tall buildings in horizontal plane. Finite volume method is used in
the solution of Laplace equation for the stream function. A deformation modulus is
introduced as a probe parameter to aid locating the viscous flow boundaries. The
computer code acts as a preprocessor for viscous flow computations, specifying the
computational boundaries, the boundary conditions and generating the computational
grid.
| Identifer | oai:union.ndltd.org:METU/oai:etd.lib.metu.edu.tr:http://etd.lib.metu.edu.tr/upload/12607878/index.pdf |
| Date | 01 November 2006 |
| Creators | Basa, Mustafa Mazhar |
| Contributors | Aydin, Ismail Assoc. Prof. Dr. |
| Publisher | METU |
| Source Sets | Middle East Technical Univ. |
| Language | English |
| Detected Language | English |
| Type | M.S. Thesis |
| Format | text/pdf |
| Rights | To liberate the content for public access |
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