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Modélisation, simulation, I.A... Calcul intensif Julien Candelier – Responsable Support / Avant-vente Amaury Bannier – Responsable secteurs Automobile / Aéronautique 21/11/2017

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Modélisation, simulation, I.A... Calcul intensif

Julien Candelier – Responsable Support / Avant-vente

Amaury Bannier – Responsable secteurs Automobile / Aéronautique

21/11/2017

Company specialized in CFD software developmentInnovative CFD software: SPH, Immersed Boundary, Finite Elements…

Dedicated hydrodynamic software for Marine Industry : VOF, potential flow …

Spinoff from Ecole Centrale Nantes and HydrOcean (acquired by Bureau Veritas in 2016)

NEXTFLOW Software short presentation

2007 20142012

CreationSpinoff from Ecole Centrale Nantes

Fluid Dynamic Lab.

HydrOcean dedicated to Marine consulting acquired

by Bureau Veritas

Turnover close to 3 million €

500

1000

1500

2000

2500

2008 2009 2010 2011 2012 2013

International developmentPartnership with Bureau

Veritas and first local offices

R&D developmentHuge investments to develop

accurate software and innovative services for marine industry

18 people6 PhD

11 Engineers 1 PhD Students

3.5 million €R&D investments since 2007

2000Nb of cores accessible for

industrial projects

Key figures

8Nb of solvers

codevelopped with ECN Fluid Dynamic Lab.

2016

Timeline of NEXTFLOW Software development

Simulation of a free falling life boat

Objectives :Minimize the huge deceleration occurring during water impact

Increase forward velocity to get away from sinking ship

Computations : from 1 to 100 million particles

Life boat impact simulation

Problem set-up 20 millions of particles

Wave forcing with potential flow solver

Focused wave on a FLNG

Problem set-up Set-up of 3D calculations in 20 min

Less than 5% absolute differences with experiments on torque

Pelton turbine simulations

films/pelton_bati_court.avi

Problem set-up

Computation set-up :

0.25 day

6 500 000 particles

96h elapsed on

512 processors

Car gear box

MICHELIN: hydroplaning simulation

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