In order to efficiently address complex problems in hydrodynamics, the advances in the development of a new method are presented here. This method aims at finding a good compromise between computational efficiency, accuracy, and easy handling of complex geometries. The chosen method is an Explicit Cartesian Finite Volume method for Hydrodynamics (ECFVH) based on a compressible (hyperbolic) solver, with a ghost-cell method for geometry handling and a Level-set method for the treatment of biphase-flows. The explicit nature of the solver is obtained through a weakly-compressible approach chosen to simulate nearly-incompressible flows. The explicit cell-centered resolution allows for an efficient solving of very large simulations together with a straightforward handling of multi-physics. A characteristic flux method for solving the hyperbolic part of the Navier-Stokes equations is used. The treatment of arbitrary geometries is addressed in the hyperbolic and viscous framework. Viscous effects are computed via a finite difference computation of viscous fluxes and turbulent effects are addressed via a Large-Eddy Simulation method (LES). The Level-Set solver used to handle biphase flows is also presented. The solver is validated on 2-D test cases (flow past a cylinder, 2-D dam break) and future improvements are discussed.
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ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering
June 8–13, 2014
San Francisco, California, USA
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-4540-0
PROCEEDINGS PAPER
A Cartesian Explicit Solver for Complex Hydrodynamic Applications
P. Bigay,
P. Bigay
Ecole Centrale Nantes, Nantes, France
HydrOcean, Nantes, France
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A. Bardin,
A. Bardin
Ecole Centrale Nantes, Nantes, France
IRT Jules Verne, Nantes, France
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D. Le Touzé
D. Le Touzé
Ecole Centrale Nantes, Nantes, France
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P. Bigay
Ecole Centrale Nantes, Nantes, France
HydrOcean, Nantes, France
A. Bardin
Ecole Centrale Nantes, Nantes, France
IRT Jules Verne, Nantes, France
G. Oger
Ecole Centrale Nantes, Nantes, France
D. Le Touzé
Ecole Centrale Nantes, Nantes, France
Paper No:
OMAE2014-24680, V002T08A089; 10 pages
Published Online:
October 1, 2014
Citation
Bigay, P, Bardin, A, Oger, G, & Le Touzé, D. "A Cartesian Explicit Solver for Complex Hydrodynamic Applications." Proceedings of the ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering. Volume 2: CFD and VIV. San Francisco, California, USA. June 8–13, 2014. V002T08A089. ASME. https://doi.org/10.1115/OMAE2014-24680
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