Naslov
Experimental Determination of Wave Pattern Resistance of a Trimaran

Autori
Degiuli, Nastia ; Werner, Andreja ; Doliner, Zdravko

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
XVII IMEKO WORLD CONGRESS Metrology in the 3rd Millennium / Ilić, Damir ; Boršić, Mladen ; Butorac, Josip - Zagreb : Croatian Metrology Society, 2003, 1396-1401

Skup
XVII IMEKO WORLD CONGRESS Metrology in the 3rd Millennium

Mjesto i datum
Dubrovnik, Hrvatska, 22.06.2003. - 27.06.2003

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
wave height measurements; wave pattern resistance; trimaran

Sažetak
The experimental determination of wave spectra and wave resistance from measurements of the wave pattern behind a ship model while being towed in a tank received considerable attention in the sixties and seventies. The Landweber, Hogben and Baba methods of experimental determination of wave pattern resistance based on wave height measurements in several longitudinal measurement cuts have been introduced in this paper. The programme of experimental determination of wave pattern resistance has been carried out in DINMA-Trieste for a trimaran whose individual hulls are Wigley parabolic models, for the Froude number range 0.254-0.420, with a total of 12 runs. The above mentioned methods are based on identical hydrodynamic model, and a starting basis are identical analytic expressions. By experimental determination of wave pattern resistance, a comparison of the calculation results (amplitude spectrum, wave resistance, reconstructed waveforms) is given. It has been shown that all three methods are equal and that they give the same results if the criteria based on frequency content determination and resolution in frequency are respected.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo, Zrakoplovstvo, raketna i svemirska tehnika

POVEZANOST RADA