Three dimensional hyperbolic grid generation

Durmuş, Gökhan


Three dimensional hyperbolic grid generation
Dinçgez, Umut Can; Aksel, Mehmet Haluk; Department of Mechanical Engineering (2006)
This thesis analyzes procedure of generation of hyperbolic grids formulated by two constraints, which specify grid orthogonality and cell volume. The procedure was applied on a wide range of geometries and high quality two and three dimensional hyperbolic grids were generated by using grid control and smoothing procedures, which supply grid clustering in all directions and prevent grid deformation (grid shock), respectively.
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Panel methods are extensively used in aerodynamic analysis of missiles in early stages of their development. An existing TUBİTAK-SAGE panel code is modified and improved for routine and more efficient calculation of the aerodynamic coefficients of various missile configurations at subsonic and supersonic flight conditions. Particularly, the poor convergence, user unfriendliness and poor output characters of this code have been improved by modifying and adding new routines to it. Now the code with an incorpo...
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Coşkun, Korhan; Aksel, Mehmet Haluk; Department of Mechanical Engineering (2007)
A three dimensional, Navier-Stokes finite volume flow solver which uses Roe’s upwind flux differencing scheme for spatial and Runge-Kutta explicit multi-stage time stepping scheme and implicit Lower-Upper Symmetric Gauss Seidel (LU-SGS) iteration scheme for temporal discretization on unstructured and hybrid meshes is developed for steady rocket internal viscous flow applications. The spatial accuracy of the solver can be selected as first or second order. Second order accuracy is achieved by piecewise linea...
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Citation Formats
G. Durmuş, “Three dimensional hyperbolic grid generation,” Middle East Technical University, 1998.