Leading-Edge Vortices of Flapping and Rotary Wings at Low Reynolds Number

2001 ◽  
pp. 275-285 ◽  
Keyword(s):  
Reynolds Number ◽  
Low Reynolds Number ◽  
Leading Edge ◽  
Low Reynolds ◽  
Rotary Wings ◽  
Leading Edge Vortices

scholarly journals Characteristics of Rotary Wings in Hovering Mode at an Ultra-Low Reynolds Number

2004 ◽  
Vol 47 (155) ◽  
pp. 59-65 ◽  
Author(s):  
Shigeru SUNADA ◽  
Akihiro OHKURA ◽  
Atsushi MATSUE ◽  
Keiji KAWACHI
Keyword(s):  
Reynolds Number ◽  
Low Reynolds Number ◽  
Low Reynolds ◽  
Rotary Wings

scholarly journals Moving Surface Boundary Layer Technique For NACA 0012 Airfoil At Ultra-Low Reynolds Number

2019 ◽  
Vol 9 (2) ◽  
pp. 3788-3795
Keyword(s):  
Boundary Layer ◽  
Reynolds Number ◽  
Low Reynolds Number ◽  
Leading Edge ◽  
Control Technique ◽  
Surface Boundary ◽  
Moving Surface ◽  
Surface Boundary Layer ◽  
Number Range ◽  
Low Reynolds

Application of moving surface boundary layer control technique has been confined to relatively high Reynolds numbers. The present paper reports a numerical study of application of the above flow technique in the ultra-low Reynolds number range. A two dimensional incompressible unstructured grid based Navier Stokes solver has been used for conducting the numerical studies. Moving surface has been applied at three different portions on the airfoil surface, firstly, in the form of a rotating leading edge portion of the airfoil, secondly, a continuous moving surface from leading edge of airfoil to 57% of the chord along the leeward surface of the airfoil and thirdly a continuous moving surface from leading edge to 97% of the chord along the leeward surface of the airfoil. All the moving surface configurations show improvement of aerodynamic performance of the airfoil through enhancement of lift and decrement of drag as compared to a fixed surface one

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