Linking supersonic boundary layer separation to structural deformation using the Kármán–Pohlhausen momentum-integral equation
Abstract
A first-order link between local separation of supersonic turbulent boundary layer flow and structural deformation is established. First, mathematical analysis of the Kármán–Pohlhausen momentum integral equation is carried out with the assumption of spatially varying surface topology in order to identify fluid-centric representations of structural deformation. Next, a data-driven approach is used to identify the dominant fluid-centric parameters. This ultimately yields a simple linear correlation between local skin friction coefficient and surface curvature, which is the unifying parameter relating deformation and separation. This link represents a key step toward deep understanding of the nuanced interplay between turbulent boundary layers and structural deformation and significantly improves fundamental understanding of fluid-structure interaction problems with prominent turbulent boundary layer dynamics.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Aug 01, 2022
- Source ID
- 10.1063/5.0101269
Entities
People
- Aaron Becks
- Datta V. Gaitonde
- Jack J. McNamara
Organizations
- Air Force Office of Scientific Research
- Ohio State University