Optimal design integration tailored to conserve energy
After the implementation of the energy efficiency design index (EEDI) for environmental conservation, we began development of a propeller with the smallest blade area. We offer products that maximise propulsion efficiency with energy-saving devices installed in front of and behind the propeller.
5000-core large-scale numerical water tank
Nakashima Advanced virtual Tank 5000: Nakashima Propeller has large-scale computational fluid dynamics (CFD) systems with 5000 cores, named the NAT5000. To design specialised propellers with the small blade areas required for fuel efficiency, high-precision and rapidly computed cavitation predictions are indispensable. Therefore, we use the 5000-core system to compute cavitation models and achieve high-speed and high-performance designs. In addition, the NAT5000 is also used in the design process for energy-saving optimisation. Although many companies invest time and money into prototype model-scale tests, we use large-scale CFD to verify energy-saving effects at full scale.
Presentation of the latest research results
Results of model tests and actual ship tests with high-performance propellers and energy-saving devices have been summarised in peer-reviewed technical papers.