Theoretical investigation of unsteady nonlinear aerodynamics

• Grant number: 18/05247-8
• Support type: Scholarships abroad - Research Internship - Doctorate (Direct)
• Effective date (Start): January 01, 2019
• Effective date (End): December 31, 2019
• Field of knowledge: Engineering - Aerospace Engineering
• Principal Investigator: Flávio Donizeti Marques
• Grantee: Carlos Renan dos Santos
• Supervisor abroad: Haithem Ezzat Mohammed Taha
• Home Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Local de pesquisa : University of California, Irvine (UC Irvine), United States
• Associated to the scholarship: 17/09468-6 - Optimization of the energy harvesting from airfoil stall induced oscillations, BP.DD

Abstract

The optimization of an energy harvester from stall-induced oscillations, such as proposed in the ongoing doctoral project (FAPESP project 2017/09468-6), requires an accurate and fast aerodynamic model. This modeling must be able to capture non-linearities associated with dynamic stall effects. Furthermore, when a harvester with finite span is considered, the aerodynamic analyses need to account for three-dimensional wing effects. However, the development of low-cost methodologies for accurate and fast prediction of unsteady nonlinear loads in three-dimensional wings remains a challenge. In this sense, the present project proposes the implementation and validation of a computational model to predict the nonlinear unsteady aerodynamic behavior of a three-dimensional wing undergoing oscillations at high angles of attack. Such methodology will be validated against high-fidelity computations and experiments. The development of this research project will result in an aerodynamic code to be coupled to the aeroelastic model used for the optimization process of an energy harvester from stall-induced oscillations. (AU)