This paper is focused on RANS simulations of Case 2.1 and Case 2.10 of the Tokyo 2015 workshop. On Case 2.1, five different grids are considered in order to assess error levels versus mesh density, for the various measured quantities. On Case 2.10, particular attention is given to the impact of the physical and numerical parameters for the seakeeping simulation. 

CFD is now widely used and recognized among the community of naval architects and marine engineers in complement or in replacement of the towing tank tests. It is essentially the case for resistance simulations, for full scale or model scale, appended hull or not, where expertise has reached a sufficient mature level to automate these CFD simulations. However, a rigorous V&V (verification and validation) analysis is still required, to improve Best Practice Guidelines (BPG) and comparing them with other guidelines available in the marine CFD community.

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Posted by Benoit Mallol

Benoit holds a master's degree in Mechanical and Numerical modeling from the University of Bordeaux (France) with a specialization in CFD dedicated to free surface flows. For more than 10 years, he has been working on unstructured meshing strategies and marine applications. As head of the marine group and head of the unstructured meshing group, Benoit drives the product roadmaps, acts as the CFD technical expert to support all our offices around the world, and makes sure that the software remains the reference on the different markets.