Aerodynamic Characteristics of Busemann Biplane Installed with High-Lift Device Using Low-Speed Smoke Wind Tunnel

2022 ◽  
Author(s):  
Masashi Kashitani ◽  
Nguyen T. Duong ◽  
Masato Taguchi ◽  
Kazuhiro Kusunose
Keyword(s):  
Wind Tunnel ◽  
Aerodynamic Characteristics ◽  
High Lift ◽  
Low Speed

Wind Tunnel Experimental Study of Wind Turbine Airfoil Aerodynamic Characteristics

2012 ◽  
Vol 260-261 ◽  
pp. 125-129
Author(s):  
Xin Zi Tang ◽  
Xu Zhang ◽  
Rui Tao Peng ◽  
Xiong Wei Liu
Keyword(s):  
Wind Tunnel ◽  
Wind Turbine ◽  
Lift Coefficient ◽  
Turbine Blades ◽  
Aerodynamic Characteristics ◽  
Wind Turbine Blades ◽  
High Lift ◽  
Minimum Drag ◽  
Stall Angle ◽  
High Reynolds

High lift and low drag are desirable for wind turbine blade airfoils. The performance of a high lift airfoil at high Reynolds number (Re) for large wind turbine blades is different from that at low Re number for small wind turbine blades. This paper investigates the performance of a high lift airfoil DU93-W-210 at high Re number in low Re number flows through wind tunnel testing. A series of low speed wind tunnel tests were conducted in a subsonic low turbulence closed return wind tunnel at the Re number from 2×105to 5×105. The results show that the maximum lift, minimum drag and stall angle differ at different Re numbers. Prior to the onset of stall, the lift coefficient increases linearly and the slope of the lift coefficient curve is larger at a higher Re number, the drag coefficient goes up gradually as angle of attack increases for these low Re numbers, meanwhile the stall angle moves from 14° to 12° while the Re number changes from 2×105to 5×105.

High-Lift Device Testing in JAXA 6.5M X 5.5M Low-Speed Wind Tunnel

2006 ◽  
Author(s):  
Takeshi Ito ◽  
Yuzuru Yokokawa ◽  
Hiroki Ura ◽  
Hiroyuki Kato ◽  
Kazunori Mitsuo ◽  
...  
Keyword(s):  
Wind Tunnel ◽  
High Lift ◽  
Low Speed ◽  
Low Speed Wind Tunnel

Vortex interactions with a high-lift airfoil in a low speed wind tunnel

2013 ◽  
Author(s):  
David G. Hahn ◽  
Simon Klein ◽  
Peter Scholz ◽  
Rolf Radespiel
Keyword(s):  
Wind Tunnel ◽  
High Lift ◽  
Low Speed ◽  
Vortex Interactions ◽  
Low Speed Wind Tunnel

PSP Measurement of a High-Lift-Device Model in JAXA 6.5m×5.5m Low-Speed Wind Tunnel

2007 ◽  
Author(s):  
Kazunori Mitsuo ◽  
Mitsuru Kurita ◽  
Shigeru Kuchi-Ishi ◽  
Keisuke Fujii ◽  
Takeshi Ito ◽  
...  
Keyword(s):  
Wind Tunnel ◽  
High Lift ◽  
Low Speed ◽  
Device Model ◽  
Low Speed Wind Tunnel

Aerodynamics of Urban Maglev vehicles

2012 ◽  
Vol 226 (6) ◽  
pp. 561-567 ◽  
Author(s):  
Colin P Britcher ◽  
John M Wells ◽  
Benoit Renaud ◽  
Thibaut Buvat
Keyword(s):  
Wind Tunnel ◽  
Historical Data ◽  
Aerodynamic Characteristics ◽  
Scale Model ◽  
Wind Environment ◽  
Wind Tunnel Tests ◽  
Low Speed ◽  
Lateral Forces ◽  
Old Dominion University

Some aerodynamic issues affecting low-speed Urban Maglev vehicles are studied, focusing primarily on the effect of ambient winds on levitation electromagnet loads. Aerodynamic characteristics of a representative vehicle are estimated by means of wind tunnel tests of a 1/12th scale model. The wind environment influencing the existing Maglev guideway at Old Dominion University are established from historical data. It is shown that ambient winds, particularly crosswinds, can pose significant challenges, including substantial redistribution of levitation forces among vehicle electromagnets. The development of large lateral forces, particularly at the forward electromagnet stations, may also be of concern.

Sign in / Sign up

Export Citation Format

Share Document