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Innovation

    Because innovation is a crucial need for all company, to improve efficiency as to open new perspectives prospects, Marc Ronet Architecture Navale brings to you his technical experience for your projects.


     Numerical Simulation

    To be able to quikly test new ideas in term of hull and fluids dynamics on computer, this is the new challenge for the naval architect. Thanks to the use of numerical tools, architect's intuition can be confirmed, and benefits are quantitatively determined.
    That why  Marc Ronet Architecture Naval office has recently implement a CFD  computation code. This powerful tools is able to solve complex 3D problems such as flow interface like sea and air. This virtual tank test allows to study different hull's options with accuracy.
    This work has been completed on a particular kind of kayak called baidarka (see the baidarka's page). Comparaison between this aleutian kayak and a more conventional greenland kayak of the same lenght and same displacement highlights the remarkable performance of this hull. The advantage brings by the bifid bow have confimred Aleut people's intuition. (see the page dedicated to the Baidarka replica's construction )



 Virtual tank test
Comparaison between a Baidarka (left) and a sea kayak (right) at a speed of 4.8 m/s

    Bifid Bow :   Increase the average speed for a same propulsive power

    This innovative concept aims to improve the seakeeping comportment of a vessel in rough seas, bringing a wave piercing effect to the hull. The bifid bow reduces vertical accelerations of the hull coming through a wave: the pitch motion is softer and the global speed is less affected with the wave.
    Marc Ronet Architecture Naval has develloped this 2500 TEU container vessel project who adopte this innovation:

 



    • The immerged part of the bow acts as a bulbous bow and presents a maximal waterline lenght.
    • The horizontal gap brings a wave piercing effect, allowing a softer hull's motion in rough seas.
    • The important volume of the upper part of the bow avoid the too important vertical motion.
    • The bifid bow goes along with a main section placed backwards from amidships to sharpen the fore warterline.


Marc   Ronet  Architecture  Navale           -          Nantes  (France)         -        00 33 6 30 25 87 44          -          contact