Design and Analysis of Vortex Generator

Abstract

To save energy and to protect the global environment, fuel consumption reduction is primary concern of automotive development. In vehicle body development, reduction of drag is essential for improving fuel consumption and driving performance, and if an aerodynamically refined body is also aesthetically attractive, it will contribute much to increase the vehicle’s appeal to   potential customers. However, as the passenger car must have enough capacity to accommodate passengers and baggage in addition to minimum necessary space for its engine and other components, it is extremely difficult to realize an aerodynamically ideal body shape. The car is therefore obliged to have a body shape that is rather aerodynamically bluff, not an ideal streamline shape.

            One way to overcome drag is to generate vortex flow at the rare end of the vehicle using vortex generators, reduction of drag in automobiles with vortex generators is already proved working in some previous studies, but no standard geometry is specified for the vortex generator. In this project we are going to compare the performance of different geometry’s of vortex generators using Ansys 15.0 fluent workbench, all the 3d models of vortex generators are developed in Catia v5 software.