Dynamics of Interactions Between Turbulent Boundary Layers and Compliant Surfaces
Abstract
A synergistic experimental and computational campaign was carried out to improve our understanding of interactions that arise from Turbulent Boundary Layers (TBL) and Shock Boundary Layer Interactions (SBLI) over compliant surfaces. Such phenomena represent design driving conditions for structural skin panels on high-speed air vehicles, yet we lack basic understanding for high-confidence predictions. Thus, careful and systematic breakdown of the problem was carried out so as to improve our fundamental understanding of this challenging problem. Using high-fidelity simulation, we considered both prescribed and coupled surface conditions. Companion experimental measurements of the same conditions were taken over both statically deformed and compliant surfaces. Uncoupled application of computed pressure distributions onto structural models were also considered in order to better elucidate the impact of coupling on the system responses. Collectively, these results provide key physical insights into the degree of dynamic interaction and feedback associated with TBL and SBLI on compliant surfaces; provide the necessary foundation to enable development of improved structural response prediction tools in these conditions, and also direct future computational and experimental studies on the problem.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 08, 2022
- Accession Number
- AD1231134
Entities
People
- Datta V. Gaitonde
- Jack J. McNamara
- Joanna M. Austin
Organizations
- California Institute of Technology
- Ohio State University