Numerical investigation of the blades number effect on the bipolar noise radiation level caused by the high skew propeller

Authors

1 Assist. Prof., Malek-Ashtar university of technology/Mechanical engineering faculty, Tehran, Iran

2 MSc, Malek-Ashtar university of technology/Mechanical engineering faculty, Tehran, Iran

Abstract

The hydro-acoustic behavior and noise of marine propellers, especially in underwater vessels and submarines is of great importance. The main purpose of this article, is numerical modeling of the hydrodynamic noise of a high skew propeller sample from MAU marine standard series using computational fluid dynamics method with the help of Ansys-Fluent software under open water conditions. In the numerical simulation, the DES turbulence model was used, which is a good model for small vortices modeling near the wall. In order to validate the hydrodynamic and hydr-oacoustic results, the available data from the DTMB4119 benchmark propeller has been used. Comparison of the sound pressure level obtained for the DTMB4119 propeller in the present work and the available data from the reference shows a good compliance at frequencies higher than 20 Hz, but at frequencies lower than 20 Hz, about 20% error is observed. Based on the obtained results, with the increase in the number of propeller blades, the amount of vortex density around the blades decreases. The increase in the number of propeller blades has caused an increase in the average level of radiation noise in receivers at the axial direction. Increasing the number of propeller blades from 2 to a maximum of 7 blades has been able to reduce the radiated noise level in the axial direction by 15 decibels. In the radial direction, except the two-bladed propeller, the dipole radiated noises caused by the 3-7-bladed propellers have similar fluctuations.

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References

[1] D. Ross (1987) Mechanics of Underwater Noise. Peninsula, Los Altos, CA.
[2] D. Caridi (2008) Industrial CFD simulation of aerodynamic noise. in Università degli Studi di Napoli Federico II.
[3] H. Haimov, V. Gallego, E. Molinelli, B. Trujillo (2016) Propeller acoustic measurements in atmospheric towing tank. O Eng J, 120: 190-201.
[4] B. Aktas, M. Atlar, S. Turkmen, W. Shi, R. Sampson, E. Korkut, P. Fitzsimmons (2016) Propeller cavitation noise investigations of a research vessel using medium size cavitation tunnel tests and full-scale trials. O Eng J, 120: 122-135.
[5] A. Brooker, V. Humphrey (2016) Measurementof radiated underwater noise from a small research vessel in shallow water. O Eng J, 120: 182-189.
[6] T. Kim, J. Jeon, S. Chu, S. Kim, W. Joo (2016) Numerical and experimental predictions of underwater propeller radiated noise. Aco 22ICA, Vol. 28, ASA, pp. 070004.
[7] G. Tani, D. Villa, S. Gaggero, M. Viviani, P. Ausonio, P. Travi, G. Bizzarri, F. Serra (2017) Experimental investigation of pressure pulses and radiatednoise for two alternative designs of the propeller of a high-speed craft, O Eng J, 132: 45-69.
[8] J. Park, W. Seong (2017) Novel scaling law for estimating propeller tip vortex cavitation noise from model experiment. J Hydro, 29: 962-971.
[9] B. Aktas, M. Atlar, P. Fitzsimmons, W. Shi (2018) An advanced joint time-frequency analysis procedure to study cavitation-induced noise by using standard series propeller data. O Eng J, 170: 329-350.
[10] M.J. Lighthill (1952) On sound generated aerodynamically. I. General theory, Proceedings of the Royal Society of London. Series A. Math Phys Sci, 211: 564-587.
[11] H. Seol, B. Jung, J.-C. Suh, S. Lee (2002) Prediction of non-cavitating underwater propeller noise. J Sou Vib, 257: 131-156.
[12] S. Kim, Y. Niu, Y.-J. Kim (2013) Computational aeroacoustic modeling of open fan and comparison of predicted and experimental noise fields. Inter noise con and conf, Vol. 246, Institute of Noise Control Engineering, pp. 970-977.
[13] J.-S. Jang, H.-T. Kim, W.-H. Joo (2014) Numerical study on non-cavitating noise of marine propeller. INT NOIS Con Conf, Vol. 249, Institute of Noise Control Engineering, pp. 3017-3022.
[14] S. Zeng, X. Du (2015) Numerical simulation and analysis of non-cavitation noise line-spectrum frequency of underwater counter-rotation propeller. Int Indu Infor Comp Eng Conf, Atlantis Press.
[15] M.C. Özden, A.Y. Gürkan, Y.A. Özden, T.G. Canyurt, E. Korkut (2016) Underwater radiated noise prediction for a submarine propeller in different flow conditions. O Eng J, 126: 488-500.
[16] Y. Wei, Y. Shen, S. Jin, P. Hu, R. Lan, S. Zhuang, D. Liu (2016) Scattering effect of submarine hull on propeller non-cavitation noise. J Sou Vib, 370: 319-335.
[17] S. Sezen, A. Dogrul, S. Bal (2016) Investigation of marine propeller noise for steady and transient flow. PROCE BOOK, 149.
 
[18] M.R. Naseer, E. Uddin, K. Rana, S. Zahir (2017) Computational validation of hydrodynamic and hydroacoustic performance of marine propeller. 14th Conf App Sci Tech (IBCAST), IEEE, pp. 569-574.
[19] H. Ghassemi, M. Gorji, J. Mohammadi (2018) Effect of tip rake angle on the hydrodynamic characteristics and sound pressure level around the marine propeller. Sh Offsh Struc, 13: 759-768.
[20] M.S.U. Khalid, I. Akhtar, B. Wu (2019) Quantification of flow noise produced by an oscillating hydrofoil. O Eng J, 171: 377-390.
[21] B. Zhang, Y. Xiang, P. He, G.-j. Zhang (2019) Study on prediction methods and characteristics of ship underwater radiated noise within full frequency. O Eng J, 174: 61-70.
[22] M. Kaltenbacher (2018) Computational Acoustics, Springer.
[23] R. Kotapati-Apparao, K.D. Squires, J.R. Forsythe (2004) Prediction of the Flow over an Airfoil at Maximum Lift.  42nd AIAA.
[24] R.B. Kotapati-Apparao, K.D. Squires, J.R. Forsythe (2003) Prediction of a prolate spheroid undergoing apitchup maneuver. IN AIAA PAPER 2003-0269 41 st aerospace sciences meeting and exhibit, citeseer.
[25] P.R. Spalart (2000) Strategies for turbulence modelling and simulations. Int J H F Flow, 21: 252-263.
[26] P.R. Spalart (1997) Comments on the feasibility of LES for wings, and on a hybrid RANS/LES approach. Proce first AFOSR int conf DNS/LES, Greyden Press.
[27] H. Seol, J.-C. Suh, S. Lee (2005) Development of hybrid method for the prediction of underwater propeller noise. J Sou Vib, 288: 345-360.
[28] Ehsan Yari, Hassan Ghassemi. (2013) Numerical analysis of sheet cavitation on marine propellers, considering the effect of cross flow, Int J  Nav Arch O Eng, 5: 546-558.
Journal of Solid and Fluid Mechanics
Volume 13, Issue 3
May and June 2023
Pages 143-158

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