| Author(s): |
Izquierdo, D. O. D.
;
dos Santos, C. R.
;
Marques, F. D.
;
Desmet, W
;
Pluymers, B
;
Moens, D
;
Vandemaele, S
Total Authors: 7
|
| Document type: | Journal article |
| Source: | PROCEEDINGS OF INTERNATIONAL CONFERENCE ON NOISE AND VIBRATION ENGINEERING (ISMA2020) / INTERNATIONAL CONFERENCE ON UNCERTAINTY IN STRUCTURAL DYNAMICS (USD2020); v. N/A, p. 12-pg., 2020-01-01. |
| Abstract | |
Airfoil oscillations induced by the stall represent highly complex nonlinear aeroelastic phenomena. Nonlinearities from stall-induced aeroelastic problems come from the aerodynamic loading. The unsteady behavior of airfoils depends on their shape, which is also impacted by the flow regime. In the context of low Reynolds airfoils, a range of asymmetric profiles have been extensively used for many aerodynamic and aeroelastic applications. This work presents the aeroelastic analysis for the airfoil low Reynolds SD7003 is stall-induced oscillations using Beddoes-Leishman model. The Beddoes-Leishman model is coupled to the equations of motion and it receives the constants for the NACA0012 and SD7003 airfoils regarding their properties in low Reynolds flow regime. In-house experimental data from wind tunnel test of SD7003 are used to assess the Beddoes-Leishman constants. Evolution on limit cycle amplitudes are used to reveal bifurcation points, thereby providing important information to assess and characterize the SD7003 low Reynolds behavior. (AU) | |
| FAPESP's process: | 18/05247-8 - Theoretical investigation of unsteady nonlinear aerodynamics |
| Grantee: | Carlos Renan dos Santos |
| Support Opportunities: | Scholarships abroad - Research Internship - Doctorate (Direct) |
| FAPESP's process: | 17/09468-6 - Optimization of the energy harvesting from airfoil stall induced oscillations |
| Grantee: | Carlos Renan dos Santos |
| Support Opportunities: | Scholarships in Brazil - Doctorate (Direct) |
| FAPESP's process: | 17/02926-9 - Airfoil unsteady aerodynamic loading assessment under dynamic stall for semi-empirical model validation |
| Grantee: | Flávio Donizeti Marques |
| Support Opportunities: | Regular Research Grants |