scholarly journals LES of Unsteady Aerodynamic Forces on a Long-Span Curved Roof

2018 ◽  
Author(s):  
Wei Ding
Keyword(s):  
Aerodynamic Forces ◽  
Unsteady Aerodynamic ◽  
Long Span

Unsteady aerodynamic forces on a vibrating long-span curved roof

2014 ◽  
Vol 19 (6) ◽  
pp. 649-663 ◽  
Author(s):  
Wei Ding ◽  
Yasushi Uematsu ◽  
Mana Nakamura ◽  
Satoshi Tanaka
Keyword(s):  
Aerodynamic Forces ◽  
Unsteady Aerodynamic ◽  
Long Span

Control of Unsteady Aerodynamic Forces

1990 ◽  
Author(s):  
Chih-Ming Ho ◽  
Ismet Gursul ◽  
Chiang Shih ◽  
Hank Lin ◽  
Mario Lee
Keyword(s):  
Aerodynamic Forces ◽  
Unsteady Aerodynamic

Unsteady Aerodynamic Forces Measured on a Fluttering Profile

2014 ◽  
Author(s):  
Igor Zolotarev ◽  
Václav Vlček ◽  
Jan Kozánek
Keyword(s):  
Mach Number ◽  
Flow Field ◽  
Degrees Of Freedom ◽  
Air Flow ◽  
Optical Measurements ◽  
Energy Contribution ◽  
Aerodynamic Forces ◽  
Unsteady Aerodynamic ◽  
New Information ◽  
Drag And Lift

The study presents evaluation of optical measurements of the air flow field near the fluttering profile NACA0015 with two-degrees of freedom, Mach number of the flutter occurrence were M=0.21 and M=0.45. Aerodynamic forces (drag and lift components) were evaluated independently on the upper and lower surfaces of the profile. Using the mentioned decomposition, the new information about mechanism of flutter properties was obtained. The forces on the upper and lower surfaces are phase shifted and are partially eliminated as a result of the circulation around the profile. The cycle changes of these forces cause the permanent energy contribution from the airflow to the vibrating system.

Method of Unsteady Aerodynamic Forces Approximation for Aeroservoelastic Interactions

2002 ◽  
Vol 25 (5) ◽  
pp. 985-987 ◽  
Author(s):  
Iulian Cotoi ◽  
Ruxandra M. Botez
Keyword(s):  
Aerodynamic Forces ◽  
Unsteady Aerodynamic
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