Numerical Analysis of Pre-Swirl Stators for Ship Propeller

Document Type : Research Article

Authors

Department of Maritime Engineering, Amirkabir University of Technology, Tehran, Iran.

Abstract

In this paper, the pre-swirl stator for the propeller of a container ship is numerically simulated and analyzed. The parameters of the pre-swirl stator are stated, and the two most important parameters, namely the number of stators and the angle of attack are considered and analyzed. The stators are chosen in three blades (four, six, and eight blades) and at five angles of attack (10, 11.25, 12.5, 13.75, and 15 degrees). In addition, the position of the stators is important, which is determined according to the flow direction in the ship's stern. After analyzing the stator simulation results, the three stators, which have favorable performance in terms of efficiency, were selected as reference stators. Then, the thrust and torque coefficients for all blades and one blade of the propeller, and pressure at one point on the propeller blade are examined. The results indicated that the stator with eight blades and at an angle of attack of 10 degrees has a better performance in terms of changing the direction of propeller inflow and producing thrust and torque. Therefore, it is improved that the efficiency and delivered power by 3.46% and 4.05%, respectively. Moreover, the four blades stator with an attack angle of 10 degrees has improved the pressure fluctuations by 8.45% compared to the non-stator condition.

Keywords

Main Subjects

References

[1] G. Reynolds, The reduction of GHG emissions from shipping–A key challenge for the industry, in:  Proceedings of the World Maritime Technology Conference WMRC, WMRC, Mumbai, 2009.
[2] M. Roe, Maritime economics, Journal of Transport Geography, 6 (1998) 311.
[3] A. Nadery, H. Ghassemi, An overview of plans to increase efficiency and improve propeller performance and reduce ship fuel consumption, in:  20th Marine Industries Conference, Tehran, Iran, 2018, (in persian).
[4] J.P. Ghose, R.P. Gokarn, Basic ship propulsion, Allied Publishers Pvt. Limited, kharagpur, India, 2004.
[5] R. Wagner, Rückblick und Ausblick auf die Entwicklung des Contrapropellers, in:  Jahrbuch der Schiffbautechnischen Gesellschaft, Springer Berlin Heidelberg, 1929, pp. 195-256.
[6] J.T. Lee, M.C. Kim, J.C. Suh, S.H. Kim, J.K. Choi, Development of a Preswirl Statorpropeller System for Improvement of Propulsion Efficiency: a Symmetric Stator Propulsion System, Transaction of SNAK, 29 (1992).
[7] F. Mewis, H. Peters, Power Savings through a Novel Fin System, in:  SMSSH Conference, Varna, Bulgaria., 1986, pp. 9.
[8] S.H. Van, M.C. Kim, J.T. Lee, Some remarks on the powering performance prediction method for a ship equipped with a preswirl stator–propeller system, in:  20st International Towing Tank Conference, San Francisco, California, 1993.
[9] S.H. Van, J.T. Lee, A powering performance extrapolation method for a preswirl stator propeller system, in:  21st International Towing Tank Conference, Trondheim, Norway, 1996.
[10] F. Çelik, M. Güner, Energy saving device of stator for marine propellers, Ocean Engineering, 34(5-6) (2007) 850-855.
[11] U. Hollenbach, O. Reinholz, Hydrodynamic Trends in Optimizing Propulsion, in:  2nd International Symposium on Marine Propulsors, Hamburg, Germany, 2011.
[12] G.-J. Zondervan, J. Holtrop, J. Windt, T. van Terwisga, On the Design and Analysis of Pre-Swirl Stators for Single and Twin Screw Ships, in:  2nd International Symposium on Marine Propulsors, Hamburg, Germany, 2011.
[13] Y.-J. Shin, M.-C. Kim, W.-J. Lee, K.-W. Lee, J.-H. Lee, Numerical and Experimental Investigation of Performance of the Asymmetric Pre-Swirl Stator for Container Ship, in:  Fourth International Symposium on Marine Propulsors smp’15, Austin, Texas, 2015, pp. 305-310.
[14] S. Park, G. Oh, S. Hyung Rhee, B.Y. Koo, H. Lee, Full scale wake prediction of an energy saving device by using computational fluid dynamics, Ocean Engineering, 101 (2015) 254-263.
[15] S. Saettone, P.B. Regener, P. Andersen, Pre-swirl stator and propeller design for varying operating conditions, in:  Proceedings of the 13th International Symposium on PRActical Design of Ships and Other Floating Structures, 2016.
[16] P. Król, T. Bugalski, M. Wawrzusiszyn, Development of numerical methods for marine propeller - pre-swirl stator system design and analysis, in:  Proceedings of the Fifth International Symposium on Marine Propulsors, Espoo, Finland, 2017.
[17] H. Streckwall, Y. Xing-Kaeding, On the working principle of pre-swirl stators and on other application benefit and design targets, International Shipbuilding Progress2, 63 (2017) 87-107.
[18] K.J. Lee, H.D. Lee, S.H. Choi, A design and validation study of a non-axisymmetric preswirl stator, Ocean Engineering, 189 (2019) 106365.
[19] A. Nadery, H. Ghassemi, Hydrodynamic Performance of the Ship Propeller under Oscillating Flow with and Without Stator, American Journal of Civil Engineering and Architecture, 8 (2020) 56-61.
[20] Y.m. Su, J.f. Lin, D.g. Zhao, C.y. Guo, H. Guo, Influence of a pre-swirl stator and rudder bulb system on the propulsion performance of a large-scale ship model, Ocean Engineering, 218 (2020) 108189.
[21] H. Yu, N. Duan, H. Hua, Z. Zhang, Propulsion performance and unsteady forces of a pump-jet propulsor with different pre-swirl stator parameters, Applied Ocean Research, 100 (2020).
[22] F. Furcas, S. Gaggero, Pre-swirl stators design using a coupled BEM-RANSE approach, Ocean Engineering, 222 (2021) 108579.
[23] K. Koushan, V. Krasilnikov, M. Nataletti, L. Sileo, S. Spence, Experimental and numerical study of pre-swirl stators PSS, Journal of Marine Science and Engineering, 8 (2020).
[24] A. Nadery, H. Ghassemi, H. Nowruzi, Enhancement of the ship propeller hydrodynamic performance by different energy-saving devices mounted at the upstream zone, Journal of the Brazilian Society of Mechanical Sciences and Engineering, 43 (2021) 469.
[25] H. Li, Q. Huang, G. Pan, X. Dong, F. Li, Effects of blade number on the propulsion and vortical structures of pre-swirl stator pump-jet propulsors, Journal of Marine Science and Engineering, 9 (2021).
[26] J.G. Kang, M.C. Kim, I.R. Shin, W.S. Jin, Feasibility study on effect of structural flexibility of asymmetric pre-swirl stator on propulsion performance for kriso container ship (Kcs), Brodogradnja, 72 (2021) 103-119.
[27] A. Bakica, N. Vladimir, Numerical estimation of Pre-Swirl Stator efficiency, in:  20th International Conference on Ships & Maritime Research, Genova - La Spezia, Italy, 2022.
[28] N.M.R. Institute, https://www.t2015.nmri.go.jp, downloaded 2020.
[29] S.H. RHEE, S. JOSHI, Computational Validation for Flow around a Marine Propeller Using Unstructured Mesh Based Navier-Stokes Solver, JSME International Journal Series B, 48 (2005) 562-570.
[30] X. Chang, S. Sun, Y. Zhi, Y. Yuan, Investigation of the effects of a fan-shaped Mewis duct before a propeller on propulsion performance, Journal of Marine Science and Technology, 0 (2018) 0.
[31] F.R. Menter, Two-equation eddy-viscosity turbulence models for engineering applications, AIAA Journal, 32 (1994) 1598-1605.
[32] CD-Adapco., User guide STAR-CCM+ Version 13.0.6, in, 2017.
[33] I. Procedings, Practical Guidelines for Ship CFD Applications ITTC – Recommended Procedures and Guidelines, section 7.5-03-02-03, in:  International Towing Tank Conference, 2014.
[34] M.D. Turbo, Basic Principles of Ship Propulsion, Copenhagen, 2011.
[35] J. Fujisawa, Y. Ukokn, K. Kume, H. Takeshi, Local Velocity Field Measurements around the KCS Model ((SRI M.S. No. 631) in the SRI 400m Towing Tank. Report of Ship Performance Division. SPD Report No. 00-003-2, Ship Performance Division. Ship Research Institute. Ministry of Transport, Shinkawa, 2000.
[36] K.C.S. geometry, http://www.simman2008.dk, downloaded July 2013.
[37] I.B. Celik, U. Ghia, P.J. Roache, C.J. Freitas, H. Coleman, P.E. Raad, Procedure for Estimation and Reporting of Uncertainty Due to Discretization in CFD Applications, Journal of Fluids Engineering, 130(7) (2008) 078001-078004.
[38] A. Nadery, H. Ghassemi, L. Chybowski, The effect of the PSS configuration on the hydrodynamic performance of the KP505 propeller behind the KCS, Ocean Engineering, 234 (2021) 109310.
[39] V. Krasilnikov, Numerical Modeling of Ship-Propeller Interaction under Self-Propulsion Condition, in:  STAR Global Conference 2014, Vienna, Austria, 2014.
Amirkabir Journal of Mechanical Engineering
Volume 54, Issue 11
February 2023
Pages 2459-2478

Files

Share

How to cite

Statistics