Exploring shock-boundary layer interactions via multi-fidelity simulations and data-driven modeling

• Grant number: 25/25614-9
• Support Opportunities: Research Grants - Visiting Researcher Grant - International
• Start date: July 01, 2026
• End date: February 28, 2027
• Field of knowledge: Engineering - Aerospace Engineering - Aerodynamics
• Principal Investigator: William Roberto Wolf
• Grantee: William Roberto Wolf
• Visiting researcher: Pedro Stefanin Volpiani
• Visiting researcher institution: Office National D'Études Et De Recherches Aérospatiales/Onera , France
• Host Institution: Faculdade de Engenharia Mecânica (FEM). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• City of the host institution: Campinas
• Associated research grant: 21/06448-0 - High-fidelity numerical simulations applied in unsteady aerodynamics, turbulence and aeroacoustics, AP.JP2

Abstract

The proposed collaboration between researchers from ONERA (Dr. Pedro Volpiani) and Unicamp (Dr. William Wolf) aims to tackle open scientific questions in supersonic turbulent flows involving shock-boundary layer interaction. The goals will be achieved through an approach that integrates medium- and high-fidelity simulations, physics-based modeling, and data-driven analysis. Particular attention will be devoted to understanding the effects of receptivity, transition mechanisms, surface curvature, pressure gradients, and wall thermal conditions, with the possibility of extensions to hypersonic flow regimes. High-fidelity numerical frameworks under development at both institutions will be employed to perform detailed simulations, generating large-scale datasets that resolve the complex dynamics of SBLIs. These datasets will then serve as the foundation for the development of improved turbulence models applicable to medium-fidelity RANS simulations. These models will be enriched by the use of machine learning techniques. Beyond the scientific goals, this project seeks to establish a long-term international collaboration between the groups from ONERA and Unicamp, strengthening ongoing research efforts supported by the FAPESP Young Investigator Grant, which involves several students funded by FAPESP scholarships. In this context, the present initiative will provide valuable training opportunities for Brazilian graduate students and postdoctoral researchers, who will play an active role in the research, contributing to the advancement of knowledge in shock-boundary layer interactions and their modeling for the next-generation aerospace systems. (AU)