Abstract
Any underwater vehicle like submarine, torpedo and AUV uses a propeller for propulsion. The significance of propeller is to develop thrust which propels the vehicle at its operational speed. The propeller geometry and design are complicated which involves many controlling parameters. The pressure difference is produced on the propeller blade between the forward and rear surfaces which accelerates water behind the blade. In addition to thrust generation, it creates noise which could be detected by the enemy. From stealth point of view, this noise is to be reduced. The present work is aimed at controlling the noise generated by the propeller by changing the skew angle of the propeller. The aim of this paper is to identify the skew angle of a propeller at which propeller noise is least. Unsteady non-cavitating noise of marine propeller of six blades with +5° skew, +10° skew, +15° skew and +20° skew and existing propeller at rotating speed of 780 rpm and vehicle speed of 7.08 m/s was predicted. The methodology adopted in CFD analysis is eddy viscosity model of Large Eddy Simulation (LES) and for acoustic analysis is the Ffowcs Williams–Hawkings (FW-H) formulation. From this numerical study on these propellers, it is found that the propeller having +15° skew angle generates the least noise.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Chekab MAF, Ghadimi P, Djeddi SR, Soroushan M (2013) Investigation of different methods of noise reduction for submerged marine propellers and their classification. Am J Mech Eng 1(2):34–42. https://doi.org/10.12691/ajme-1-2-3
Ji B, Luo1 X, Wu Y (2014) Unsteady cavitation characteristics and alleviation of pressure fluctuations around marine propellers with different skew angles. J Mech Sci Technol 28(4):1339–1348. https://doi.org/10.1007/s12206-013-1166-8
Seol H, Jung B, Suh J-C, Lee S (2002) Prediction of non-cavitation underwater propeller noise. J Sound Vib 257(1):131–156
Kim T, Jeon J, Chu S, Kim S, Joo W (2016) Numerical and experimental prediction methods of cavitation noise radiated by underwater propellers. In: Proceedings of the 22nd international congress on acoustics underwater acoustics, Paper ICA2016-35
Bagheri MR, Seif MS, Mehdigholi H (2014) Numerical simulation of underwater propeller noise. J Ocean, Mech Aerosp 4:1–6
Bibliography
Zhu Z (2015) Numerical study on characteristic correlation between cavitating flow and skew of ship propellers. J Ocean Eng 99:63–71
Da-Qing L (2006) Validation of rans predictions of open water performance of a highly skewed propeller with experiments. In: Conference of global Chinese scholars on hydrodynamics
Ghasseni H, Ghadimi P (2011) Numerical analysis of the high skew propeller of an underwater vehicle. J Marine Sci Appl 10:289–299. https://doi.org/10.1007/s11804-011-1071-4
Reese H, Carolus T (2008) Axial fan noise: towards sound prediction based on numerical unsteady flow data—a case study. J Acou Soc Am 123(5):3539–3539
Ji B, Luo X, Wang X, Peng X, Wu Y, Xu H (2011) Unsteady numerical simulation of cavitating turbulent flow around a highly skewed model marine propeller. J Fluids Eng 133
Acknowledgements
The authors wish to express their sincere gratitude to Dr. O. R. Nanda Gopan, Director, NSTL Visakhapatnam for Permitting to publish this paper. The authors also wish to express gratitude to Vibration Studies Division of NSTL, Visakhapatnam.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2021 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Ramakrishna, V., Rao, D.A., Sankara Rao, C., Ganesh Kumar, P.V.S., Gunasekhar, T., Mani kumar, V. (2021). Noise Control of a Marine Propeller by Modifying the Skew Angle. In: Singh, M., Rafat, Y. (eds) Recent Developments in Acoustics. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-15-5776-7_20
Download citation
DOI: https://doi.org/10.1007/978-981-15-5776-7_20
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-15-5775-0
Online ISBN: 978-981-15-5776-7
eBook Packages: EngineeringEngineering (R0)