Adaptive Grid Refinement for ISIS-CFD
Keywords:
Numerical simulation, adaptive grids, grid refinement.
Abstract
An adaptive grid refinement method for a parallelised unstructured finite-volume code is described in the present paper. The method currently provides directional refinement for unstructured hexahedral meshes. To get a flexible and general method, the refinement criterion, the decision whether or not to refine each cell, and the actual refinement are strictly separated. Also, the refinement of cells and faces is decoupled. Results for a free-surface refinement criterion on two steady ship test cases show significant increases in accuracy and efficiency, compared to non-refined grids.
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References
[1] R. Duvigneau, M. Visonneau, and G.B. Deng. “On the role played by turbulence closures in hull shape opti-mization at model and full scale.” J. Marine Science and Technology, 8(1), 1–25, (2003).
[2] A. Hay, P. Queutey, and M. Visonneau. “Computation of threedimensional free-surface flows with an auto-matic adaptive mesh refinement and coarsening strategy.” In Proceedings of the 25th Symposium on Naval Hydrodynamics, St John’s, Newfoundland and Labrador, (2004).
[3] A. Hay and M. Visonneau. “Error estimation using the error transport equation for finite-volume methods and arbitrary meshes.” Int. J. Computational Fluid Dynamics, 20(7), 463–479, (2006).
[4] A. Leroyer and M. Visonneau. “Numerical methods for RANSE simulations of a self-propelled fish-like body.” J. Fluid & Structures, 20(3), 975–991, (2005).
[5] J. Longo and F. Stern. “Effects of drift angle on model ship flow.” Experiments in Fluids, 32, 558–569, (2002).
[6] P. Queutey and M. Visonneau. “An interface capturing method for freesurface hydrodynamic flows.” Comput-ers & Fluids, 36(9), 1481–1510, (2007).
[2] A. Hay, P. Queutey, and M. Visonneau. “Computation of threedimensional free-surface flows with an auto-matic adaptive mesh refinement and coarsening strategy.” In Proceedings of the 25th Symposium on Naval Hydrodynamics, St John’s, Newfoundland and Labrador, (2004).
[3] A. Hay and M. Visonneau. “Error estimation using the error transport equation for finite-volume methods and arbitrary meshes.” Int. J. Computational Fluid Dynamics, 20(7), 463–479, (2006).
[4] A. Leroyer and M. Visonneau. “Numerical methods for RANSE simulations of a self-propelled fish-like body.” J. Fluid & Structures, 20(3), 975–991, (2005).
[5] J. Longo and F. Stern. “Effects of drift angle on model ship flow.” Experiments in Fluids, 32, 558–569, (2002).
[6] P. Queutey and M. Visonneau. “An interface capturing method for freesurface hydrodynamic flows.” Comput-ers & Fluids, 36(9), 1481–1510, (2007).
Published
2008-12-31
How to Cite
1.
Wackers J, Visonneau M. Adaptive Grid Refinement for ISIS-CFD. Annals of ”Dunarea de Jos” University of Galati. Fascicle XI Shipbuilding [Internet]. 31Dec.2008 [cited 26Apr.2025];31:11-6. Available from: https://gup.ugal.ro/ugaljournals/index.php/fanship/article/view/1549
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