Van Oossanen Naval Architects has years of experience in optimizing the performance of commercial vessels, from small tenders to large container vessels. Using our Computational Fluid Dynamics (CFD) capability we can analyse the flow behaviour around your ship in great detail. This understanding is used to reduce the calm water resistance and increase propulsive efficiency, which leads to a reduction in fuel consumption.
Besides the calm water performance we can also simulate the behaviour in waves to assess crew comfort, sustained speed, accelerations on cargo and green water on deck. When it comes to wind forces and hinder we can use CFD to precisely determine the airflow around the superstructure.
For more than 20 years Van Oossanen Naval Architects have been involved in the naval architecture of yachts and ships. As members of half a dozen America’s Cup design teams and our continuous work on yachts, commercial & military vessels, we have developed and implemented cutting edge design technology and used that technology in hundreds of designs.
The results of intensive commercial research campaigns, as well as our own in-house research projects, provide us with the knowledge and the understanding of the underlying physics and principles of what constitutes an optimum design, as well as a thorough knowledge of the driving features in each new concept.
Together with our practical experience obtained on the water, this is of paramount importance when making important decisions in the earliest design stage, and when optimizing the design in the final design stage to meet each requirement in the design brief.
Nowadays we are as often approached by yards as we are by private clients to develop new concepts and provide the associated preliminary and final design. Often we manage the tendering process for private clients, as well as the detailed engineering and project management for yards.
Analysis & Optimization
Our CFD capabilities has attracted much attention from designers and builders of large commercial vessels, including inland waterway ships operating in shallow water, dredgers, merchant ships, work boats, etc. CFD enables us to accurately evaluate the resistance and propulsion properties of hull forms and the flow around complex hull appendages. Numerous projects are carried out annually requiring the numerical modeling of a particular design and evaluating possible improvements to the design of hull and appendages. In each of these projects we are able to define changes to the design leading to an appreciable reduction in resistance and an improvement of the inflow to the propellers. This not only includes changes to the bow and the bulb (when fitted) but also to the aft-body, often in association with a complex set of appendages such as gondola’s and head boxes, to which are attached nozzles and rudders, etc.
Many projects are for vessels operating in shallow water because of the ability of our Fine/Marine CFD package to accurately predict the effect of shallow water on the resistance and the flow, including the effects of trim and squat.