Numerical optimisation of propeller-hull configurations at full scale
Artikel i vetenskaplig tidskrift, 2006

Optimisation of propeller/hull configurations based on the Reynolds-Averaged Navier-Stokes (RANS) equations has been very rare so far, due to the large computational effort required. Virtually no such optimisation has been carried out at full scale, where only a few RANS methods are at all applicable due to stability problems. The present paper introduces a newly developed RANS solver especially designed for stability and this solver is shown to work well at full scale. Through a link to a commonly used propeller analysis code predictions of the viscous flow around the full scale ship with an operating propeller may be made. This is utilized in the work reported here, where the flow codes are introduced into a system for automatic optimisation. It is shown that even well designed propellers may be further improved both in a fixed wake and in the wake behind a fixed hull.

full scale

RANS

propeller-hull configuration

Optimization

wake

Författare

Lars Larsson

Hydromekanik

Björn Regnström

Hydromekanik

Kaijia Han

Hydromekanik

Göran Bark

Hydromekanik

Nicolas Bathfield

Hydromekanik

Proceedings of the Institute of Marine Engineering, Science and Technology Part A: Journal of Marine Engineering and Technology

1476-1548 (ISSN)

Vol. A8

Ämneskategorier

Strömningsmekanik och akustik