Thesis
Unsteady navier-stokes simulation of rainbow trout swimming hydrodynamics
Master of Science (MS), Washington State University
2004
Handle:
https://hdl.handle.net/2376/170
Abstract
The propulsion mechanism of an undulatory swimming 10 cm rainbow trout (oncorhynchus mykiss) is studied using a 2-D unsteady incompressible Navier-Stokes computational model with a moving adaptive mesh (FLUENT 6.1). The investigation of the wake reveals a thrust jet with alternating shedding vortices at the edges of the jet, similar to previous experiments. The angle of the jet is up to +/- 30 degrees from the downstream direction with the jet bounded by the vortical structures in the wake. The trout’s thrust and drag forces and power output are quantified and efficiency is estimated at 62%. The boundary layer along the trout compares well to previous experiments and is shown to be laminar with signs of incipient separation.
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Details
- Title
- Unsteady navier-stokes simulation of rainbow trout swimming hydrodynamics
- Creators
- Patrick James Flanagan
- Contributors
- Rollin H. Hotchkiss (Degree Supervisor)
- Awarding Institution
- Washington State University
- Academic Unit
- Civil and Environmental Engineering, Department of
- Theses and Dissertations
- Master of Science (MS), Washington State University
- Identifiers
- 99900525132901842
- Language
- English
- Resource Type
- Thesis