Improved low-order modeling of unsteady airfoils with intermittent leading-edge vortex shedding and trailing-edge flow separation

• Grant number: 23/15418-2
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate (Direct)
• Start date: March 01, 2024
• End date: February 28, 2025
• Field of knowledge: Engineering - Aerospace Engineering - Aerodynamics
• Principal Investigator: Flávio Donizeti Marques
• Grantee: George Lucas Souto Torres
• Supervisor: Ashok Gopalarathnam
• Host Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Institution abroad: North Carolina State University (NC State), United States
• Associated to the scholarship: 21/09224-5 - Development of a reduced-order aerodynamic model for the analysis of the aeroelastic response of airfoils at high angles of attack, BP.DD

Abstract

The proper analysis of high-angles of attack, large-amplitude, and high-frequency aircraft wings maneuvers needs models that correctly account for the nonlinear effects of the vortical structures developed in unsteady phenomena. Although the CFD methods are exceptional in analyzing unsteady flows, they require high computational power. Meanwhile, low-order methods showed noteworthy performance in simulating such phenomena with much less computational cost. In this sense, the present research project aims to develop a low-order model that accurately simulates, with fewer empirical constants, airfoils undergoing arbitrary maneuvers in a vaster range of reduced frequency, including the ones with reasonable flow separation at the trailing edge.