DAVANNE, François-Xavier (2015) Contribution à la validation du logiciel SPH-flow pour des applications à l’hydrodynamique navale PFE - Project Graduation, ENSTA.

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During an internship at HydrOcean, a full review of the verification and validation process for numerical codes have been realized. This work revealed several potential improvements to the usual processes and a new method inspired by them was theorized. This method was then used on SPH-flow software, a CFD code using a lagrangian resolution of the Navier-Stokes equation in their weakly compressible variant. To achieve this, an IT framework was created and applied to an experimental test case of dihedral shape slamming into a water tank. Though results didn’t live up to expectations, the method showed promise by splitting the error into its source terms and related uncertainties. Moreover, a verification work was executed for a CIPEH project on the lowering of a subsea package through the splash zone. The goal was to verify a catenary model and perform a CFD simulation of package in a sling load configuration entering the splash zone. This objective was achieved but this study also raised the problem of a possible insufficient level of discretization to capture the full dynamic.

Item Type:Thesis (PFE - Project Graduation)
Uncontrolled Keywords: verification, validation, SPH, SPH-flow, package lowering, catenary model, V&V
Subjects:Mathematics and Applications
Fluid Mechanics and Energy
ID Code:6614
Deposited By:François-Xavier Davanne
Deposited On:26 mai 2016 10:05
Dernière modification:26 mai 2016 10:05

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