Thesis defense : Corentin Hermange - ED SPIGA

Corentin Hermange, PhD student in the H2i team (LHEEA) since 2014, will defend his thesis entitled:

Numerical simulation of the fluid-structure interactions inside the aquaplaing problem

On June 5, 2017 from 09:00 To 12:00

On June 5, 2017 from 09:00 To 12:00

On June 5, 2017 from 09:00 To 12:00

On June 5, 2017 from 09:00 To 12:00

9h, Centrale Nantes, Amphi S
The aquaplaning problem has been the topic of simulation works emphasizing its complexity: fluid-structure interactions, structures modelling, materials involved, contact with asphalt and the complexity of the resulting fluid flow (extremely complex interface, drying up the road, ventilation, possible development of turbulence and cavitation). Then Michelin, Ecole Centrale Nantes and Hydrocean have recently tested the ability of the SPH (Smoothed Particle Hydrodynamics) solver developed by the two latter to classify tires based on their surface structure geometries. In this context, the interest of SPH for modelling efficiently the aquaplaning flow has been underlined. The meshless and Lagrangian feature of SPH naturally avoid the problem of fluid/solid grid compatibility. The other significant advantage of the SPH method, in this context, appears in its ability to be relatively easily coupled to with conventional Finite Element (FE) solvers.  The aim of this work is threefold. First, qualify the SPH-FE coupling strategy, especially in terms of energy and then develop schemes to ensure a good compromise among stability, accuracy and computation time. Second, quantify the influence of different involved physical phenomena to determine which should be modelled. Finally, adapt SPH models to simultaneously consider different phenomena and to performe simulations of the complete problem.
Published on May 9, 2017 Updated on January 31, 2018