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Volume 16 - Summer and Fall 2021                   ijmt 2021, 16 - Summer and Fall 2021: 63-71 | Back to browse issues page

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Gharagozloo A H, Negahdari M R, Ebrahimi A. Numerical Study on Body Form of Flettner Sail Using Computational Fluid Dynamics. ijmt 2021; 16 :63-71
URL: http://ijmt.ir/article-1-774-en.html
1- Chabahar Maritime University
Abstract:   (6111 Views)
According to the important rule of maritime transport in world trade and prevent the further emission of greenhouse gases, ships' propulsion system needs innovative designs. One of these plans was the rotor sail introduced in recent decades. This idea uses wind power to help propulsion ships and is based on the Magnus effect, which Anton Flettner proposed. The selected geometry is based on the experimental tests performed at Reynolds number 5800 for speed ratio 0 and 4 simulated. The numerical solution has been done by the CFD method, and the results of lift and drag coefficients are obtained and validated. The results show that by changing the body form, the behavior of fluid around it also changes and leads to a different distribution of velocity and pressure. For both models with a stationary cylinder, CD=0.67 and for the first rotational model, CL=6.35 & CD=1.076 and for the proposed form, CL=6.041 & CD=1.039. 
Full-Text [PDF 1293 kb]   (2924 Downloads)    
Type of Study: Research Paper | Subject: Ship Hydrodynamic
Received: 2021/11/5 | Accepted: 2022/04/14

1. Smith, T.W., et al., Third IMO greenhouse gas study 2014. 2015.
2. IMO. IMO action to reduce greenhouse emissions from international shipping. 2020; Available from: https://www.e- ports.com/regulations/19f9165a4d7440f2ac9e698362100492.
3. Badalamenti, C., On the application of rotating cylinders to micro air vehicles. 2010, City University London.
4. Thom, A., On the effect of discs on the air forces on a rotating cylinder. 1934: HM Stationery Office.
5. Swanson, W., The Magnus effect: A summary of investigations to date. 1961. [DOI:10.1115/1.3659004]
6. Chen, Y.-M., Y.-R. Ou, and A.J. Pearlstein, Development of the wake behind a circular cylinder impulsively started into rotatory and rectilinear motion. Journal of Fluid Mechanics, 1993. 253: p. 449-484. [DOI:10.1017/S0022112093001867]
7. Tokumaru, P. and P. Dimotakis, The lift of a cylinder executing rotary motions in a uniform flow. Journal of Fluid Mechanics, 1993. 255: p. 1-10. [DOI:10.1017/S0022112093002368]
8. Badalamenti, C. and S. Prince. Effects of endplates on a rotating cylinder in crossflow. in 26th AIAA Applied Aerodynamics Conference. 2008. [DOI:10.2514/6.2008-7063]
9. MOBINI, K., M. NIAZI, and I. IRAN, Large Eddy Simulation of Low Subcritical Reynolds NumberFlow across a Rotating Circular Cylinder.
10. Yuce, M. and D. Kareem, A Numerical Analysis of Fluid Flow around Circular and Square Cylinders. Journal - American Water Works Association, 2016. 108: p. E546-E554. [DOI:10.5942/jawwa.2016.108.0141]
11. De Marco, A., et al., Flettner rotor concept for marine applications: A systematic study. International Journal of Rotating Machinery, 2016. 2016. [DOI:10.1155/2016/3458750]
12. Pullin, D., W. Cheng, and R. Samtaney. Large-eddy simulation of flow about a rotating cylinder at large Reynolds number. in THMT-18. Turbulence Heat and Mass Transfer 9 Proceedings of the Ninth International Symposium On Turbulence Heat and Mass Transfer. 2018. Begel House Inc. [DOI:10.1615/THMT-18.1110]
13. Magnus, G., On the Deflection of a projectile. Poggendorf's Annalen der Physik und Chemie, 1853. 88: p. 804-810.
14. Robins, B., New Principles of Gunnary. London, UK, 1742.
15. Cengel, Y.A., Fluid mechanics. 2010: Tata McGraw-Hill Education.
16. Shih, T.-H., et al., A new k-ϵ eddy viscosity model for high reynolds number turbulent flows. Computers & fluids, 1995. 24(3): p. 227-238. [DOI:10.1016/0045-7930(94)00032-T]
17. Fluent, A., 12.0 Tutorial Guide. Ansys Inc, 2011.

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