Professor Hrvoje Jasak will give a keynote lecture at the First conference of computational methods in offshore technology (COTech 2017) held from 30th November to 1st December 2017 at the University of Stavanger, Norway. The title of the keynote is CFD Analysis in Subsea and Marine Technology.
Accurate evaluation of design conditions for engineering equipment in a sub-sea and off-shore environment brings numerous challenges. The loads originate from transient, stochastic and highly non-linear free surface flow, (eg. wave impact). Structural response is sought for objects undergoing 6-degrees-of-freedom (6-DOF) motion and deformation.
Experimental evaluation of loads is just as challenging, due to scaling effects and effort of reproducing realistic sea state in a controlled environment. Imprecise evaluation of structural loads may lead either to unnecessary increase in cost or succeptability to catastrophic failure.
Computational Fluid Dynamics offers a promise of accurate and predictive evaluation of loads, combining free surface flow model, 6-DOF motion and Fluid-Solid coupling. In this talk, we shall present state of the art of CFD in modelling of regular, irregular and freak waves and its interaction with static and floating structures under mooring or propulsion using OpenFOAM and the Naval Hydro Pack. The work aims to address the challenges of irregular sea state modelling, wave impact and fluid-solid coupling in different frameworks, with examples of simulations and road-map of future challenges.