Electrical Swath Ships with Underwater Hulls Preventing the Boundary Layer Separation (CROSBI ID 282558)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Nesteruk, Igor ; Krile, Srećko ; Koboević, Žarko
engleski
Electrical Swath Ships with Underwater Hulls Preventing the Boundary Layer Separation
Abstract: The body shapes of aquatic animals can ensure a laminar flow without boundary layer separation at rather high Reynolds numbers. The commercial efficiencies (drag-to-weight ratio) of similar hulls were estimated. The examples of neutrally buoyant vehicles of high commercial efficiency were proposed. It was shown that such hulls can be effectively used both in water and air. In particular, their application for SWATH (Small Water Area Twin Hulls) vehicles is discussed. In particular, the seakeeping characteristics of such ships can be improved due to the use of underwater hulls. In addition, the special shaping of these hulls allows the reducing of total drag, as well as the energetic needs and pollution. The presented estimations show that a weight-to-drag ratio of 165 can be achieved for a yacht with such specially shaped underwater hulls. Thus, a yacht with improved underwater hulls can use electrical engines only, and solar cells to charge the batteries.
environment protection ; drag reduction ; commercial efficiency ; boundary layer separation ; SWATH vehicles
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Podaci o izdanju
8 (9)
2020.
889136
9
objavljeno
2077-1312
10.3390/jmse8090652
Trošak objave rada u otvorenom pristupu
Povezanost rada
Brodogradnja, Interdisciplinarne tehničke znanosti, Strojarstvo, Tehnologija prometa i transport, Temeljne tehničke znanosti