Spanwise correlation of aerodynamic forces on oscillating rectangular cylinder
| Autor: | Shaopeng Li, Haili Liao, Mingshui Li, Qi Wang, Jiadong Zeng |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Physics
010504 meteorology & atmospheric sciences Renewable Energy Sustainability and the Environment business.industry Mechanical Engineering Reynolds number Aerodynamics Mechanics Structural engineering Aeroelasticity 01 natural sciences 010305 fluids & plasmas Physics::Fluid Dynamics Aerodynamic force Lift (force) symbols.namesake 0103 physical sciences symbols Flutter Pitching moment business 0105 earth and related environmental sciences Civil and Structural Engineering Wind tunnel |
| Zdroj: | Journal of Wind Engineering and Industrial Aerodynamics. 154:47-57 |
| ISSN: | 0167-6105 |
| DOI: | 10.1016/j.jweia.2016.04.003 |
| Popis: | The aerodynamic forces (lift and moment) on oscillatory rectangular cylinder with side ratio B/D=5 are investigated by synchronized surface pressure measurement and forced motion technique. The effects of amplitude of vibration, incident angle and Reynolds number on the spanwise correlation of aerodynamic loading are studied. Results show that aerodynamic forces along the span are not fully correlated, which indicates that the application of the strip assumption may overestimate the overall aerodynamic loading on large-span structures, and consequently may result in a large error margin in evaluation of flutter and aeroelastic response. It is also shown that the pattern of vibration and its amplitude play a significant role in dektermining the spanwise correlation of the aerodynamic forces, including the motion-induced force and the vortex-induced force. Furthermore, the effects of the incident angle and Reynolds number are related with the vibrating pattern, and should not be negligible in some cases. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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