Book chapter
Along the Far Computational Horizon: Simulating Fluid/Fish Interaction
Bridging the Gap, pp.1-8
2001
DOI: 10.1061/40569(2001)252
Abstract
Future computational codes will be capable of simulating the movement of a single fish through moving fluid. Present codes can simulate (1) turbulent flow around stationary objects (hydraulic models); (2) flow around a moving foil attached to a wing in unidirectional flow; (3) the changes in pressure and turbulent kinetic energy on a "virtual fish" along a Lagrangian pathline through a hydroturbine; and (4) the neuro-skeletal-muscular basis for fish tail movement independent from fluid inertia. No existing model can combine two or more of the above features. The problem is complex: to analyze the fluid dynamics of three-dimensional flow around an object that continuously changes shape and the angle of attack, and is positively influenced by the thrust generated by reverse Karman sheets in the wake region. These computations must be dynamically tied to the neuro-skeletal-muscular response of the simulated fish to the fluid surrounding it. Requirements of the future modeling effort include (1) solving the Navier-Stokes equations in a highly unsteady 3-D flow field; (2) changing internal boundary conditions at each time step to accommodate the change in position, orientation, and velocity of the simulated fish; and (3) eventually linking the fluid dynamics to the neuro-skeletal-muscular system of the fish. A suggested stepwise research approach is described to move towards accomplishing this formidable task.
Details
- Title: Subtitle
- Along the Far Computational Horizon: Simulating Fluid/Fish Interaction
- Creators
- Yong G LaiRollin H HotchkissLarry Weber
- Resource Type
- Book chapter
- Publication Details
- Bridging the Gap, pp.1-8
- DOI
- 10.1061/40569(2001)252
- Language
- English
- Date published
- 2001
- Academic Unit
- Civil and Environmental Engineering
- Record Identifier
- 9984196965302771
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