Pubblicazioni per Romain Lanos

An Innovative Optimization Procedure for Supercavitating Foils

Catherine Ramirez, Giovanni Lombardi, Michele Farnesi, Romain Lanos

2021

Cubit, Syroco, Università di Pisa

Abstract

The Syroco Lab research and simulation team, under the leadership of Ph.D Catherine Ramirez Villalba and Ph.D Romain Lanos, is leveraging modeFRONTIER for automating simulation processes and optimizing the design of several critical components of the Syroco speedcraft. One of the most challenging aspects is to optimize the profile of the foil that anchors the speedcraft to water, and needs to work in both subcavitating and supercavitating regimes.

The major challenge in this high-performance foil design is the requirement for a hydrodynamics optimization procedure to obtain the desired performance and stability, while taking into account the feasibility of the components and controlling the computational costs. While hydrodynamic characteristics were evaluated using CFD software, the feasibility of the wing construction was evaluated with a Finite Elements Method analysis imposing custom forces from CFD results.

This procedure led to a well-defined and fast design space exploration obtaining a wing drag reduction of more than 25% with respect to a reference solution with an imposed target lift. The simulation and optimization process evaluated 4,063 designs, singling out 594 designs complying with constraints.

Conference/Journal: International CAE Conference and Exhibition, November 2021

DOI/Source: https://engineering.esteco.com/blog/modefrontier-design-fastest-speedcraft/

Keywords: Supercavitation, CFD optimization, Syroco, World Sailing Speed Record, modeFRONTIER

International CAE Conference, Vicenza (IT)