Ship and propeller models, manufactured in house are tested in Towing Tank of the LSMH for resistance, flow visualization, wake measurements, propeller characteristics in open water and self–propulsion.

 

Experiments in ship model towing tanks are traditionally used to develop hull forms with low resistance and optional propulsion characteristics. Although ship resistance depends basically on her principal characteristics, optimization of hull lines and the propulsion system and the possible use of a bow bulb may lead to substantial improvement of the overall performance. The final check of the ship performance is been done always experimentally.

 

Efficient propellers are now designed exclusively analytically and recent developments in the determination of the viscous flow around a hull form, allow for better predictions of the hydrodynamic characteristics of a full-scale ship. The LSMH has full-fledged capabilities in this area.

 

The success of the hydrodynamic design of a “newbuilding” is measured during the ship acceptance trials. LSMH cooperates with other Labs of NTUA to offer full services for the measurement of speed and maneuvering characteristics as a function of shaft horsepower and propeller revolutions.

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Ship Propulsion