Hydrodynamic Design Solutions
Provide your specialized needs
1, Energy-saving ducts (Mewis Duct or PSV)
Background： Due to the obstruction of the hull, the inflow in front of the propeller is usually uneven. The propeller working in the uneven flow field will produce energy loss, resulting in a relatively low propulsion efficiency of the propeller.
Based on this, it is necessary to provide a marine energy-saving duct to solve the problem that propellers working in uneven flow fields will produce energy losses, resulting in relatively low propulsion efficiency of the propellers.
2, vortex fins (HVAF), or PBCF
We think the PBCF and the propeller are considered as a whole system with their design as an integrative process, in which the concept of the increased loading in the blade root is incorporated. The load distribution on the blade becomes well-proportioned due to the increased loading in the blade root, and it is advantageous to the reduction of the vibratory force and the blade tip vortex. The blade root area is stronger in withstanding forces, and is not easy to be vibrated, therefore, the increased loading there is beneficial to the noise reduction. The disadvantage of the increased loading in the blade root is the generation of the hub vortex behind the boss cap, but the hub vortex can be broken up by the energy saving hydrodynamic mechanism of the PBCF.
3, High efficiency propeller
Technological innovations in hydrodynamics are ever-changing, and propeller designs from a number of years ago have been improved and updated in different ways as the latest iterations of hydrodynamic design software have improved the design efficiency of propellers, the ability to avoid cavitation, open water efficiency, and other parameters. The new high efficiency propeller designs, in terms of design efficiency, are generally 5-10% more efficient than the propeller designs of 10-20 years ago. At the same time, it basically does not increase the cost of propeller manufacturing. Providing customers with sufficient economic options.
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4， air lubrication system
A new energy-saving technology that uses the difference in density and viscosity between air and water to inject an appropriate amount of air into the bottom of the hull to form and maintain a gas-liquid mixed layer or air layer at the bottom of the ship, reducing the frictional resistance of the ship and reducing fuel consumption.
energy saving solution quest never ends
