scholarly journals The Use of Vortex Generators to Reduce the Aerodynamic Drag of Athletic Apparel

2016 ◽  
Vol 147 ◽  
pp. 20-25 ◽  
Author(s):  
Len Brownlie ◽  
Yuki Aihara ◽  
Jorge Carbo ◽  
Edward Harber ◽  
Ryan Henry ◽  
...  
Keyword(s):  
Aerodynamic Drag ◽  
Vortex Generators ◽  
Athletic Apparel

Effect of Vortex Generators on Aerodynamic Characteristics of a Car

2011 ◽  
Vol 418-420 ◽  
pp. 1873-1877
Author(s):  
Xu Yan ◽  
Jian Ye ◽  
Zhi Ming Zhao ◽  
Xing Jun Hu ◽  
Lei Liao
Keyword(s):  
Drag Reduction ◽  
Drag Coefficient ◽  
Energy Saving ◽  
Emission Reduction ◽  
Aerodynamic Drag ◽  
Vortex Generator ◽  
Aerodynamic Characteristics ◽  
Vortex Generators ◽  
Numerical Stimulation ◽  
Aerodynamic Drag Reduction

In order to reduce the aerodynamic drag, a domestic car was selected as study object to research the size and the layout of the vortex generator with the method numerical stimulation. By comparing the values of drag coefficient (Cd) the cars with vortex generators (VGs) and the original and then analyzing the mechanism of drag reduction, a final optimized strategy was achieved. It was concluded that VGs can lower the Cd of a car but the effect depends on the size and the layout. Our research achievements can serve as reference for automobile aerodynamic drag reduction, and are also significant to energy saving and emission reduction.

scholarly journals Methods of Reducing Vehicle Aerodynamic Drag

2012 ◽  
Author(s):  
Volodymyr Sirenko ◽  
Roman Pavlovs’ky ◽  
Upendra S. Rohatgi
Keyword(s):  
Wind Tunnel ◽  
Drag Reduction ◽  
Aerodynamic Drag ◽  
Vortex Generators ◽  
Scale Model ◽  
Small Scale ◽  
General Motor ◽  
Passive Devices ◽  
Partial Implementation ◽  
Small Scale Model

A small scale model (length 1710 mm) of General Motor SUV was built and tested in the wind tunnel for expected wind conditions and road clearance. Two passive devices, rear screen which is plate behind the car and rear fairing where the end of the car is aerodynamically extended, were incorporated in the model and tested in the wind tunnel for different wind conditions. The conclusion is that rear screen could reduce drag up to 6.5% and rear fairing can reduce the drag by 26%. There were additional tests for front edging and rear vortex generators. The results for drag reduction were mixed. It should be noted that there are aesthetic and practical considerations that may allow only partial implementation of these or any drag reduction options.

EFFECTS OF MULTIPLE TRAPEZOIDAL VORTEX GENERATORS ON FLOW AND SURFACE COOLING

2018 ◽  
Author(s):  
Jeongmoon Park ◽  
Jorge L. Alvarado ◽  
Leonardo P. Chamorro ◽  
Charles P. Marsh
Keyword(s):  
Vortex Generators ◽  
Surface Cooling
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