Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
HIDRODYNAMICS OF FISH SWIMMING IN QUASI-STEADY FLOW REGIME
Submission Author:
Antônio Augusto Nogueira Espenchitt , DF
Co-Authors:
Antônio Augusto Nogueira Espenchitt, Marianela Machuca Macias, Taygoara Oliveira, Antonio Brasil Junior
Presenter: Antonio Brasil Junior
doi://10.26678/ABCM.COBEM2019.COB2019-0453
Abstract
This work presents an investigation of fish swimming using computational fluid dynamics with a quasi-steady flow approach. A tridimensional tuna motion model is analyzed for different time steps in an full swim cycle with this approach. Several geometries of the tuna fish were created based on a motion model, one for each time step. The parameters for each simulation were a steady flow condition and the k-ω turbulence model, using the ANSYSTM Fluent solver. The final results were components of the drag force (components of pressure field and friction) and for a full period oscillation of the fish’s tail and body and a time regression was made. These results were then compared to the values of the same conditions simulation and model found in previous paper regarding the same matter, but with a transient simulation approach.
Keywords
biomechanics, Swimming Fish, ANSYS Fluent, CFD
