Analysis of Lift and Drag of Mono-foil Hysucat due to Longitudinal Foil-placement Variation
Journal Title: International Journal of Marine Engineering Innovation and Research - Year 2018, Vol 2, Issue 2
Abstract
CFD simulations were conducted to study the effects of a hydrofoil and its relative placement in the longitudinal direction on the total resistance of a mono-foil hysucat (hydrofoil supported catamaran). Three foil positions were considered: (i) precisely below the vessel’s center of gravity, (ii) 3 chord-lengths aft from position 1 and (iii) 6 chord-lengths aft from position 1. At relatively low speed (volumetric Froude number FnV < 1.8), the hydrofoil results in an increase of the total resistance of the hysucat (up to 4.43%). At relatively high speed (FnV > 1.8), the hydrofoil results in a decrease of the total resistance (up to 34.86%). The resistance coefficient first increases, takes a maximum value and then decreases with increasing Froude number. The maximum value is observed at FnV ≈ 1.4 (or Fn ≈ 0.5), consistent with previous observations. The most optimum foil placement is that precisely below the center of gravity of the vessel.
Authors and Affiliations
Ketut Suastika, Regi Y. Dikantoro, Dedi B. Purwanto, Dony Setyawan, Wing H. A. Putra
Keywords
Related Articles
- EP ID EP333961
- DOI 10.12962/j25481479.v2i2.3655
- Views 176
- Downloads 0
Flat Top Barge 300feet Design Using Portable Dynamic Positioning System
Portable Dynamic Positioning System has not commonly applied to the ship, especially on barge. Besides for Dynamic Positioning function, the system can be used as ship's main propulsion. By using this system, the ship ab...
Technical Analysis of Kort Nozzle Application for SPOB Ship 4990 DWT on River
Propeller is a locomotor shaped vanes are used to drive ships, and also propellers which serves to move tehaga by changing the turning force of the propeller thrust menggerakakan into the vessel. In increasing the value...
Modelling the Turbocharger Cut Off Application Due to Slow Steaming Operation 12RTA96C-B Engine
Out of the total operational costs of a ship, fuel costs account for by far the highest proportion. In view of the global economic situation and the rising oil prices, shipowners and charterers are looking for solutions...
Digital Education on Small Island: Maratua Island, Indonesia
Indonesia has thousand islands to be developed. The total number of islands is 17,508. The potential that can be developed on a small island are environment, energy, transportation, education, information, and so on. In...
Design of Protection Coordination for Overcurrent on Electrical System in Tanker Ship Plan Using Electro Mechanical Trip Device
Disturbance of power system in ship is unavoidable case that required a function from safety system to separate the affected parts of system. The disturbance in electrical system generally is a short-circuit current. It...