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Audi flow analysis
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1 Geometry
1 Mesh
1 Simulation setup
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1 Geometry 1 Mesh 1 Simulation setup 0 ResultsAbout this project
Objective:This project investigates the aerodynamic effects of roof-mounted Vortex Generators (VGs) on a passenger vehicle (2015 Audi A4 Sedan). The primary goal is to delay boundary layer separation at the rear window, thereby reducing the wake region and minimizing aerodynamic drag.Methodology:A Computational Fluid Dynamics (CFD) analysis was conducted to compare the "clean" reference vehicle against configurations with 1, 5, and 9 shark-fin vortex generators.Simulation Setup:Physics: Incompressible, Steady-State RANS.Turbulence Model: K-Epsilon (Realizable) with wall functions for boundary layer resolution.Inlet Velocity: 44.44 m/s (160 km/h).Reference Area: 1.67 m².Key Results:The study focuses on the variations in Drag Coefficient ($C_d$) and Lift Coefficient ($C_l$), visualizing the flow structures (streamlines) and pressure distribution in the wake region.
