Inhomogeneous Turbulent Boundary Layers: Modeling Surface Pressure Wavenumber Spectra
Abstract
This proposal describes a program of work that is designed to enhance the modeling capabilities for structures excited by turbulent shear flows. The requirement is that the models should be based analytical methods given the mean flow over the structure obtained from RANS calculations. The focus will be on inhomogeneous turbulent flows, which may be three dimensional in nature and of finite cross flow extent, and/or caused by the wakes of surface mounted obstructions.The specific objectives are1) To develop a RANS based approach to obtain the wavenumber spectra of pressure fluctuations below an inhomogeneous turbulent boundary layer.2) To develop models for the surface pressure wavenumber spectra in the far wakes of surface mounted objects.3) To understand the relative importance of mean shear and non linear turbulence source terms on surface pressure spectra.The work in this study will be in collaboration with an experimental program at Virginia Tech and a numerical study at the University of Notre Dame. The detailed experimental program is described in a companion proposal from Virginia Tech and will support the development of an analytical model.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 31, 2020
- Source ID
- N000142012774
Entities
People
- Stewart Glegg
Organizations
- Florida Atlantic University
- Office of Naval Research
- United States Navy