Numerical Investigation of the Fluid Flow Characteristics on the Surface of an Airfoil with Different Angles of Vortex Generator's

摘要

The goal of this endeavo r is to analyze the variation of flow physics of flow over an airfoil without spoiler and with spoiler at different angles. From this analysis how stall point are decreased with spoiler angle variation are to be found. The coefficient of pressure, counter display, vector display are observed for all the different mesh design. For different values of spoiler angle, the variation of lift and drag component of force can be analyzed. The general-purpose CFD software FLUENT is used for this observation. Fluent employs experts in computational methods, mesh generation, and software development. All functions required to compute a solution and display the results are accessible in FLUENT through an interactive, menu -driven interface. That's why it is used for this analysis. At first the design of airfoil without spoiler and with spoiler at different angle is drawn in GAMBIT 2D simulation. The problem specifications are as follows- create geometry in GAMBIT, mesh geometry in GAMBIT, specify bo undary types in GAMBIT, set up problem in FLUENT, solve the problem and analyze the results. This investigation led to a conclusion that lift is decreased and drag is increased which shows the common nature of spoiler.