Solution of high speed flows using three dimensional method of characteristics

Başeşme, Ertuğrul Alp


Optimization of aeroelastic flapping motion of thin airfoils in a biplane configuration for maximum thrust
Kaya, Mustafa; Tuncer, İsmail Hakkı; Jones, Kevin D.; Platzer, Max F. (2007-01-01)
An aeroelastic flapping motion of thin airfoils in a biplane configuration is optimized for maximum thrust. Airfoils are attached to swing arms by an elastic joint, which is model led by a torsional spring. A spring-mass system is employed for the aeroelastic coupling. The stiffness coefficient and the mass moment of inertia of the airfoil are optimized for maximum thrust. A gradient based optimization method is employed in a parallel computing environment. Unsteady, low speed flows are computed in parallel...
Performances of Numerical and Analytical Jacobians in Flow and Sensitivity Analysis
Ezertaş, A A; Eyi, Sinan (2009-06-22)
Implementation of ball-center spring analogy mesh deformation technique with CFD design optimization
Yang, Yosheph; Özgen, Serkan (2015-01-01)
© 2015, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.Mesh deformation technique plays an important role in several numerical simulations and applications including design optimization. This paper aims to implement the developed unstructured mesh deformation technique for CFD Design Optimization around 2-D Airfoils. During the optimization procedure, the newly deformed mesh is generated by using the updated Ball-Center Spring analogy mesh deformation technique. The compar...
Application of volume of fluid (VOF) method in conjunction with shear stress transport (SST) k-ω turbulence closure model to investigate spillway flow
Bayrakdar, Fatih; Tokyay Sinha, Talia Ekin; Department of Civil Engineering (2017)
Hydraulic engineers often require to assess the reasons and consequences of interaction of flow with structures. Computational Fluid Dynamics (CFD) became a useful tool in this regard in recent years as it provides ample amount of information both on flow and its interaction with its surrounding. To this end, flows over a spillway are investigated. The computational domain for the flow over a spillway is based on the study by Dargahi (2006). Numerical results are compared to previous experimental ones. In t...
Application of fully implicit coupled method for 2D incompressible flows on unstructured grids
Zengin, Şeyda; Tarman, Işık Hakan; Department of Engineering Sciences (2012)
In the subject of Computational Fluid Dynamics (CFD), there seems to be small number of important progress in the pressure-based methods for several decades. Recent studies on the implicit coupled algorithms for pressure-based methods have brought a new insight. This method seems to provide a huge reduction in the solution times over segregated methods. Fully implicit coupled algorithm for pressure-based methods is very new subject with only few papers in literature. One of the most important work in this a...
Citation Formats
E. A. Başeşme, “Solution of high speed flows using three dimensional method of characteristics,” Ph.D. - Doctoral Program, Middle East Technical University, 1998.