Passive Control of Non Canonical Flows with Anisotropic Porous Materials
Abstract
The information presented shows the characteristics of anisotropic porous materials (APMs). Both experimental and computation work is summarized. The design and fabrication of APM lattices for experiments are discussed, with the porosity varied in each direction to be low (~0.15), medium (~0.5), or high (~0.85) porosities. Both anisotropic and isotropic geometries are examined. The Darcy-Forchheimer model is used for data analysis with experiments conducted in uniform and fully developed flow conditions, with the best agreement of the model is seen for data acquired for high porosities. Experimental data are compared to DNS work, showing good agreement for anisotropic designs. In terms of computation work, a framework to characterize parameters of the DF law is introduced while quantifying the DF law performance in the highly nonlinear regime for equilibrium 2D flows. The implementation of DF within the ViCar3D solver and validation against existing literature for a direct numerical simulation (DNS) of a periodic turbulent channel flow is discussed, which shows a good agreement with existing work. Computational analysis of the performance of the DF law for a high-Re 2D separation bubble flow and the effects of porous substrate on the bluff body wake is introduced. Current work on experimental analysis of turbulent separation bubble control is briefly discussed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 08, 2023
- Accession Number
- AD1230471
Entities
People
- Alvi Farrukh
Organizations
- Florida State University