Aerodynamic Shape Improvement Based on Surface Pressure Gradients in the Stream-wise and the Transverse Directions

2010-01-0511

04/12/2010

Event
SAE 2010 World Congress & Exhibition
Authors Abstract
Content
Aerodynamic forces are the result of various complex viscous flow phenomena such as three-dimensional turbulent boundary layer on the body surfaces, longitudinal vortices induced by three-dimensional boundary layer separation, and high turbulence caused by flow separations. Understanding the flow characteristics and, especially, how the aerodynamic forces are influenced by the changes in the vehicle body shape, are very important in order to improve vehicle aerodynamics (particularly for low drag shapes). The present study was an attempt to provide insights for better understanding of the complex three-dimensional flow field around a vehicle by observing the limiting surface streamlines and the surface pressure gradients in the stream-wise and the transverse directions. The main objective of this work is to provide a comprehensive diagnostic analysis of the basic flow features in order to learn more about the flow separations in three-dimensions. In addition, we would like to identify the flow structures due to the vehicle shapes which lead to surface pressure recovery. The availability of a reliable diagnostic tool will greatly improve the design iterations and aerodynamic development costs.
Meta TagsDetails
DOI
https://doi.org/10.4271/2010-01-0511
Pages
9
Citation
Han, T., and Kim, Y., "Aerodynamic Shape Improvement Based on Surface Pressure Gradients in the Stream-wise and the Transverse Directions," SAE Technical Paper 2010-01-0511, 2010, https://doi.org/10.4271/2010-01-0511.
Additional Details
Publisher
Published
Apr 12, 2010
Product Code
2010-01-0511
Content Type
Technical Paper
Language
English