scholarly journals 04/00558 Time domain formulation of self-excited forces on bridge deck for wind tunnel experiment

2004 ◽  
Vol 45 (1) ◽  
pp. 67
Keyword(s):  
Wind Tunnel ◽  
Time Domain ◽  
Bridge Deck ◽  
Wind Tunnel Experiment

Macdonald Bridge Suspended Spans Deck Replacement:Construction Engineering Challenges and Solutions

2016 ◽  
Author(s):  
Dusan Radojevic ◽  
Keith Kirkwood
Keyword(s):  
Nova Scotia ◽  
Wind Tunnel ◽  
Service Life ◽  
Bridge Deck ◽  
Suspension Bridge ◽  
Wind Tunnel Testing ◽  
Aerodynamic Stability ◽  
Bridge Superstructure ◽  
Suspended Structure ◽  
Analysis Models

The Angus L. Macdonald Bridge, a major suspension bridge that crosses Halifax Harbour in Halifax, Nova Scotia, opened to traffic in 1955. The bridge deck has reached the end of its service life, and the design of the new bridge superstructure and its replacement sequence were completed in 2014. The entire suspended structure and hangers are now being replaced sequentially during night and weekend closures while the bridge is opened for traffic during the daytime. The erection sequence is supported by sophisticated automated erection analysis models which take into account the geometry of the existing bridge, positioning of the erection equipment on the deck, and hanger and strand jack adjustments that are required during construction. Significant wind tunnel testing and analysis have been performed to ensure aerodynamic stability of the bridge during erection and in its final condition.

Wind Tunnel Experiment of Microjet-based Flow Control on a Multi-Element High-Lift Airfoil

2022 ◽  
Author(s):  
Case P. Van Dam ◽  
Sai B. Mothukuri ◽  
Seyedeh Sheida Hosseini ◽  
Edward White ◽  
Lisa Brown ◽  
...  
Keyword(s):  
Wind Tunnel ◽  
Flow Control ◽  
Wind Tunnel Experiment ◽  
High Lift

A wind tunnel experiment to investigate the effect of polyvinyl acetate, biochar, and bentonite on wind erosion control

2018 ◽  
Vol 65 (8) ◽  
pp. 1049-1062 ◽  
Author(s):  
Zanyar Feizi ◽  
Shamsollah Ayoubi ◽  
Mohammad Reza Mosaddeghi ◽  
Ali Asghar Besalatpour ◽  
Mojtaba Zeraatpisheh ◽  
...  
Keyword(s):  
Wind Tunnel ◽  
Wind Erosion ◽  
Polyvinyl Acetate ◽  
Erosion Control ◽  
Wind Tunnel Experiment ◽  
Wind Erosion Control

Optimization Calculation of Javelin Throwing Results

2014 ◽  
Vol 716-717 ◽  
pp. 764-766
Author(s):  
Min Jiang ◽  
Ji He Zhou
Keyword(s):  
Mathematical Model ◽  
Wind Tunnel ◽  
Initial Velocity ◽  
Angle Of Attack ◽  
Wind Tunnel Experiment ◽  
Aerodynamic Efficiency ◽  
Optimization Calculation ◽  
Computer Optimization ◽  
Necessary And Sufficient

On the basis of javelin wind tunnel experiment, we established mathematical model of javelin flight to conduct a computer optimization and got the conclusions. When the initial velocity is in the range of 25m/s-30m/s, the best throwing condition is: the throwing angle is 40°, the angle of attack is 11°. The javelin throwing condition is not zero angle of attack was necessary and sufficient for obtained aerodynamic efficiency.

scholarly journals PENELITIAN MEKANISME STALL AKIBAT PERKEMBANGAN GELEMBUNG SEPARASI PADA SAYAP NACA 0017 SECARA EKSPERIMEN DI TEROWONGAN ANGIN SUBSONIK

2010 ◽  
Vol 2 (2) ◽  
Author(s):  
Agus Aribowo
Keyword(s):  
Reynolds Number ◽  
Wind Speed ◽  
Wind Tunnel ◽  
Wind Tunnel Experiment ◽  
Effect Mechanism ◽  
Subsonic Wind Tunnel

This paper presents the results of investigation the separation buble which growing and burst on aerofoil NACA 0017 with effect mechanism of stall in the subsonic wind tunnel. Experiment have done on wind speed 20 m per s and 30 m per s. The data pecked from the orifice of pressure with interval 2 degree until stall position. The result was separation buble which growing on the airfoil, going to ahead of airfoil together with increasing the Reynolds number. After touching, the flow appeared to separate from the upper airfoil without reattachment.

Sign in / Sign up

Export Citation Format

Share Document