Application of Macroscopic Forcing Method in quantification of Eddy Diffusivity fields in Subsurface
Abstract
We propose collaborative research with the goal of developing understanding of mass and momentum mixing in sub- and near surface wak,e flows. To this end our project we will combine the numerical macroscopic forcing method (MFM) with a three-dimensional space time, resolved velocity field measurements to obtain an efficient and direct technique for the measurement of eddy diffusivity tensor fie,lds for mass and momentum transport in the turbulent wake of a bluff body. While MFM calculations will be performed at Stanford (led, by Prof. Ali Mani), the three-dimensional flow field measurements will be conducted using the three-dimensional defocused digital p,article image velocimetry (DDPIV) at Caltech (Led by Professor Mory Gharib and Dr. Cong Wang). The proposed collaborative research e,ffort includes the development, validation, and deployment of the proposed DDPIV+MFM technique in both the subsurface and free surfa,ce turbulent wake. The research outcome will provide physical insights of the dynamic entrainment and dispersion process in the wake, and generate key quantitative guidelines for the modeling of surface flow hydrodynamics, which are of broad implications in wide ra,nge of Naval applications. The developed methodology also paves the way for reduced-order characterization/modeling of other flow fi,elds of Navy interest. Approved for Public Release
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jul 08, 2022
- Source ID
- N000142212323
Entities
People
- Ali Mani
Organizations
- Office of Naval Research
- Stanford University
- United States Navy