Naslov
Some parameters influencing the accuracy of the wave pattern resistance determination

Autori
Degiuli, Nastia ; Werner, Andreja ; Stašić, Tomislav

Vrsta, podvrsta i kategorija rada
Poglavlja u knjigama, znanstveni

Knjiga
Maritime Transportation and Exploitation of Ocean and Coastal Resources

Urednik/ci
Guedes Soares, Carlos ; Garbatov, Yordan ; Fonseca, Nuno

Izdavač
CRC Press ; A.A. Balkema Publishers

Grad
London : Delhi

Godina
2005

Raspon stranica
121-127

ISBN
0-415-39036-2

Ključne riječi
wave pattern resistance ; record lenght ; starting position

Sažetak
The method for wave pattern resistance determination from wave pattern measurements in longitudinal cuts, in a tank of finite width, has been shown. The influence of the record length and the starting position with respect to the main hull stern, for a chosen trimaran configuration, on the accuracy of results has been analyzed. The record length represents a critical parameter in all methods for wave pattern resistance de- termination from wave pattern measurements in longitudinal cuts. Dissipation of results becomes significant if the record length is too short. It has been shown that the wave pattern resistance decreases considerably as the record length becomes longer, what physically has no sense. Performed numerical experiments with theo- retically generated waves show that the increase of the record length entails increase in the wave pattern resis-tance e.g. it converges to the theoretical value. Such behaviour can be attributed to the existence of certain physical phenomenon in the experiment that is not embraced by the present hydrodynamical model. For maximal disposable record length most of the experimentally obtained points lie within the confidence preci-sion error band.

Izvorni jezik
Engleski

Znanstvena područja
Brodogradnja, Strojarstvo, Zrakoplovstvo, raketna i svemirska tehnika

POVEZANOST RADA