Analysis of Pervious Oyster Shell Habitat (POSH) Unit Performance Using Computational Fluid Dynamics
ORCID
https://orcid.org/0009-0000-6658-4078
Year
2023
Season
Summer
Paper Type
Master's Thesis
College
College of Computing, Engineering & Construction
Degree Name
Master of Science in Civil Engineering (MSCE)
Department
Engineering
NACO controlled Corporate Body
University of North Florida. School of Engineering
First Advisor
Dr. Raphael Crowley
Second Advisor
Dr. Kelly Smith
Third Advisor
Dr. William Dally
Department Chair
Dr. Alan Harris
College Dean
Dr. William Klostermeyer
Abstract
In recent years, pervious oyster shell habitat (POSH) units have been developed and deployed as part of living shoreline projects in Northeast Florida. POSH units are modular artificial oyster reef structures made from cement and recycled oyster shells. POSH units aim to attenuate wave energy, trap sediment, restore salt marsh habitat, and improve oyster recruitment. Previous studies demonstrated the units’ ability to attract oyster larvae and reduce shoreline bed stress in some areas. This paper looks to further understand the effect of POSH unit placement on bed stress under boat wake conditions using computational fluid dynamics (CFD). Results indicated that certain POSH unit arrangements may be preferable; a small overlap may help block flow and reduce associated stresses, while a chevron pattern may benefit sites subject to oblique waves. Understanding how POSH units affect bed stress and erosion patterns can help restoration stakeholders design future living shorelines with POSH units or other similar structures.
Suggested Citation
Cope, Lauren E., "Analysis of Pervious Oyster Shell Habitat (POSH) Unit Performance Using Computational Fluid Dynamics" (2023). UNF Graduate Theses and Dissertations. 1197.
https://digitalcommons.unf.edu/etd/1197