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Modeling of Turbulent Separation Flow
Dr. Emad Shukry Ali & sahab shehab
College of Engineering-Mechanical Engineering Department Babylon University- Babylon City – Hilla – Iraq.
ABSTRACT
In the present work a numerical analysis includes modeling of separation flow of a two-dimensional, incompressible, steady and turbulent flow around (NACA 0012) airfoil. The study includes the numerical solution of the continuity and momentum equations with the two equations of the (k-apclin) turbulence model. Grid generation with Body Fitted Coordinates System (BFCS) has been used. The grid generation technique based on differential equations which it solve by finite difference method and the clustering of the grid was used in the numerical solution. The flow variables (aerodynamic characteristics) such as the velocity vector and stream function are computed. Beside, pressure, lift and drag coefficients. The present study gives a detail description of separation flow and its effects under different flow conditions. Separation point at the airfoil surface is predicted at high angles of attack.
- وصف الــ Tags لهذا الموضوع
- CFD , Turbulent flow , NACA
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