HIDRODYNAMICS OF FISH SWIMMING IN QUASI-STEADY FLOW REGIME
- Antônio Augusto Nogueira Espenchitt 1
- Marianela Machuca Macias 1
- Taygoara Felamingo de Oliveira 1
- Antonio Cesar Pinho Brasil Junior 1
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1
Universidade de Brasília
info
Verlag: Associação Brasileira de Engenharia e Ciências Mecânicas
Datum der Publikation: 2019
Art: Konferenz-Beitrag
Zusammenfassung
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