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A 3-D Viscous Vorticity Model for Predicting Turbulent Flows over Hydrofoils
Version 1
: Received: 8 December 2023 / Approved: 12 December 2023 / Online: 12 December 2023 (12:47:19 CET)
A peer-reviewed article of this Preprint also exists.
You, R.; Kinnas, S.A. A 3-D Viscous Vorticity Model for Predicting Turbulent Flows over Hydrofoils. J. Mar. Sci. Eng. 2024, 12, 45. You, R.; Kinnas, S.A. A 3-D Viscous Vorticity Model for Predicting Turbulent Flows over Hydrofoils. J. Mar. Sci. Eng. 2024, 12, 45.
Abstract
This research provides a computationally efficient numerical tool for predicting 3-D turbulent flows over hydrofoils. It addresses a gap in existing numerical methods by extending the capabilities of the laminar VIScous Vorticity Equation (VISVE) solver to handle 3-D turbulent flow scenarios. The implementation integrates the k − ω SST model into the 3-D VISVE solver using the Finite Volume Method (FVM), extending its capability to handle turbulent flows. The turbulence model is also parallelized to improve computational efficiency. The application of the newly developed model to 3-D hydrofoil cases expands its scope and serves as preparatory work for future rotational propeller applications. Rigorous testing includes a convergence analysis concerning grid numbers and time step sizes, and validation against a Reynolds-Averaged Navier-Stokes (RANS) solver ensures the reliability and accuracy of the enhanced VISVE solver for turbulent flow simulations. The turbulent VISVE solver offers advantages such as reduced computational domain and costs through a vorticity-based approach. Turbulence concentration within boundary layers and free shear flows does not compromise the advantages of the small computational domain. The simplified meshing process, automatically generated by denoting the number of panels on the hydrofoil, makes the solver accessible for researchers and engineers.
Keywords
Software Development; Viscous Vorticity Equation; Turbulence Modeling; 3-D Hydrofoil; Computational Fluid Dynamics
Subject
Engineering, Marine Engineering
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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