Comparative analysis of the hydrodynamic performance of untwisted and twisted rudders using a hybrid RANSE/BEM model
Paper i proceeding, 2014

Results of a computational study on the hydrodynamic perfor- mance of twisted and untwisted rudders for a single screw vessel are presented. Ship flow simulations are performed by using a hybrid RANSE/BEM model. Numerical predictions by RANSE and BEM solvers are validated through comparisons against ex- perimental data for the ship considered in the study. The com- parative analysis of untwisted and twisted rudders is carried out by fully–appended ship flow simulations at uniform ship speed and rudder angles between 0 and 20 degrees. Numerical results predict comparable manoeuvring capabilities for the alternative layouts, whereas the twisted design allows to mitigate negative pressure peaks observed on the untwisted rudder surface over a range of helm angles.

propeller–rudder interaction

Hybrid RANSE/BEM model

twisted rudder

Ship hydrodynamics

Författare

Danilo Calcagni

Flavia Bellotto

Riccardo Broglia

Francesco Salvatore

Rickard Bensow

Chalmers, Sjöfart och marin teknik, Marine Design

ISOPE-2014: The 24th International Ocean and Polar Engineering Conference

1098-6189 (ISSN)

674-682
9781880653913 (ISBN)

Drivkrafter

Hållbar utveckling

Innovation och entreprenörskap

Styrkeområden

Transport

Energi

Infrastruktur

C3SE (Chalmers Centre for Computational Science and Engineering)

Ämneskategorier

Farkostteknik

Strömningsmekanik och akustik

ISBN

9781880653913

Mer information

Skapat

2017-10-07