Shape Amelioration of Hydrofoils to Maximize Lift and Minimize Drag

Sayan Saha¹ , Mainak Lodh² , Sayani Sen³

Section:Research Paper, Product Type: Journal-Paper
Vol.6 , Issue.1 , pp.1-6, Oct-2019

Online published on Oct 31, 2019

Copyright © Sayan Saha, Mainak Lodh, Sayani Sen . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
This paper presents numerical study of water flow over 3D symmetrical and unsymmetrical hydrofoils. Steady flow of water around the hydrofoils is simulated using the k-ε transport equation-based model. The results focus on variation in lift and drag forces as an aftermath of shape variation, profile of the foil, angle of attack and velocity of water flow around it. The foils were tested at different angles of attack and different velocities of flow. Standard k-ɛ model without any modifications were used for simplicity. This was done to ascertain the most efficient foil shape which generates sufficient lift force while producing as little drag force as possible. After determining the most efficient shape, the power required to operate these foils on a boat was also calculated so as to get an idea of the reduction of required power

Key-Words / Index Term :
Hydrofoil, Lift force, Drag force, Numerical study, CFD

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