Abstract
Computational fluid dynamics (CFD) modelling of a flow field surrounding marine propellers is difficult due to complex geometry and rotational effects. A propeller is a kind of fan that converts rotational motion to thrust to convey power. A difference in pressure is created among the front and back surfaces of an airfoil-shaped blade as well as the fluid accelerates back of the blades, producing two forces: one on the longitudinal direction of the ship, known as the thrust force, and the other, known as the tangential force, that produces the required torque. For the vast majority of parts, maritime propellers are made from aluminium or bronze alloys. In this study, a performance comparison is done between the original and modified blade version. SOLIDWORKS 2016 is used for propeller design, while ANSYS 2019 is used for structural analysis. The primary aim is to increase the rate of thrust force with a modified design and a constant input power. This study also implements cost estimation along with cost-cutting strategies. An effective cost-estimating framework can help you gain a competitive edge.
References
- Abou El-Azm Aly, A. and Habashi, W.G. (2019), "Accurate marine propellers flow field CFD through anisotropic mesh optimization", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 29 No. 9, pp. 3148-3168. https://doi.org/10.1108/HFF-09-2018-0538
- Ahmed, S. Guo, Z. Zhang, C. Shi, D. Zhu “A review on durability of fiber reinforced polymer (FRP) bars reinforced seawater sea sand concrete” Constr. Build. Mater., 256 (2020), Article 119484,
- Toshio Yam Atagi , Hideaki Murayama , Composite marine propeller , 2011.
- HN Das, S.Kapuria , Smart composite propeller for marine applications , India , 2013.
- T. Brockett, "Minimum Pressure Envelopes for Modified NACA-66
- Sections with NACA a = 0. 8 Camber and BUSHIPS Type I and Type II Sections,” Technical Report 1780, DTNSRDC, 1966.
- R. Eppler and Y. Shen, "Wing Sections for Hydrofoils - Part 1:
- Symmetrical Profiles," Journal of Ship Research, vol. 23, no. 3, pp. 209-217, 1979.
- Y. Shen and R. Eppler, "Wing Sections for Hydrofoils - Part 2:
- Nonsymmetrical Profiles," Journal of Ship Research, vol. 25, no. 3, pp. 191- 200, 1981.
- R. Eppler and D. Somers, "A Computer Program for the Design and Analysis of LowSpeed Airfoils,"NASA TM 80210, 1980.
- G. Kuiper and S. D. Jessup, "A Propeller Design Method for Unsteady
- Conditions," SNAME Transactions, vol. 101, pp. 247-273, 1993.
- H. Yamaguchi, H. Kato, M. Maeda, and M. Toyoda, "High Performance
- Foil Sections with Delayed Cavitation Inception," in Proceedings of the 3rd ASME/JSME Joint Fluids Engineering Conference, 1999.
- S. Mishima, "Design of Cavitating Propeller Blades in Non-uniform Flow by Numerical Optimization," Ph.D. Thesis, Massachusetts Institute of Technology, 1996.
- S. Mishima and S. A. Kinnas, "Application of a Numerical Optimization Technique to the Design of Cavitating Propellers in Non-Uniform Flow," Journal of Ship Research, vol. 41, pp. 93-107, 1997. 88
- J.-L. Hwang, C.-Y. Hsin, Y.-H. Cheng, and S.-S. Chin, "Design of
- Inflow-Adapted Foil Sections by Using a Multi-Objective Optimization
- Method," in First International Symposium on Marine Propulsors, Trondheim, Norway, June 2009.
- H. Ouyang, L. Weber, and A. Odgaard, "Design Optimization of a Two-
- Dimensional Hydrofoil by Applying a Genetic Algorithm," Engineering Optimization, vol. 38, pp. 529- 540, 2006.
- S. Kawada, "Induced Velocity by Helical Vortices," Journal of the Aeronautical Sciences, vol. 3, pp. 86-87, 1936.
- H. W. Lerbs, "Moderately Loaded Propellers with a Finite Number of Blades and an Arbitrary Distribution of Circulation," SNAME Transactions, vol. 60, pp. 73-123, 1952.