Document Type : Original Article
Authors
School of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran
Abstract
Surface-piercing propellers (SPP) are known as one of the most efficient propellers in marine sciences and maritime industries. In this study, different types of simulations were performed on an SPP in various rotational speeds in open water conditions, and a numerical study was also carried out on a particular type of such propellers. In fact the main purpose of this paper is comparing the simulation results with the experimental results from past in order to derive a trustable soultion for future works. For this purpose, the surface-piercing propeller was simulated by OpenFoam software (an open source software with high range of capabilities) in order to analyze the results. The performance curve was then plotted and compared with the ones from open water tests. In this case the turbulance model of K-Epsilon RNG was used which is capable of increasing Y+ to 300 which is monitored at the end of the simulation with the maximum amount of 315 and the average of 80. Results showed that the curves followed the same pattern and trends in the numerical study, and the report pointed to similar findings. In conclusion, it was proved that the sliding mesh method was a proper way for simulating propellers, particularly SPPs. The curves for thrust and torque coefficients of the SPP were also compared with the literature and the efficiency curve was plotted.
Keywords
Main Subjects
- Faltinsen, O.M., 2005. Hydrodynamics of high-speed marine vehicles. Cambridge University Press. Doi: 10.1017/CBO9780511546068
- Parker, J.R., 2017. Design and numerical analysis of an unconventional surface-piercing propeller for improved performance at low and high speeds (Doctoral Dissertation, Massachusetts Institute of Technology). http://hdl.handle.net/1721.1/111891
- Young, Y.L., Savander, B.R., 2011. Numerical analysis of large-scale surface-piercing propellers. Ocean Engineering, 38(13), pp. 1368-1381. Doi: 1016/j.oceaneng.2011.05.019
- Peterson, D., 2005. Surface-piercing propeller performance. Naval Postgraduate School, Monterey, California. http://hdl.handle.net/10945/2046
- Olofsson, N. ,1996. Force and flow characteristics of a partially submerged propeller. Ph.D. Thesis, Chalmers University of Technology.
- Young, Y.L., & Kinnas, S.A., 2001. A BEM for the prediction of unsteady midchord face and/or back propeller cavitation. Journal of Fluids Engineering, 123(2), pp. 311-319. Doi: 10.1115/1.1363611
- Furuya, O. ,1985. A performance-prediction theory for partially submerged ventilated propellers. Journal of Fluid Mechanics, 151, pp. 311-335. Doi: 10.1017/S0022112085000982
- Young, Y.L. and Kinnas. S.A., 2004. Performance prediction of surface-piercing propellers. Journal of Ship Research, 48(4), pp. 288–304. Doi: 5957/jsr.2004.48.4.288
- Caponnetto, M., 2003. RANSE simulations of surface piercing propellers. In Proceedings of the 6th Numerical Towing Tank Symposium.
- Himei, K. ,2013. Numerical analysis of unsteady open water characteristics of surface piercing propeller. In Third International Symposium on Marine Propulsors smp (Vol. 13, pp. 292-297). Doi: 10.3390/w11102015
- Alimirzazadeh, S., Roshan, S.Z., Seif, M.S. ,2016. Unsteady RANS simulation of a surface-piercing propeller in oblique flow. Applied Ocean Research, 56, pp. 79-91. Doi: 1017/CBO9780511546068
- Yang, D., Ren, Z., Guo, Z. and Gao, Z., 2018. Numerical analysis on the hydrodynamic performance of an artificially ventilated surface-piercing propeller. Water, 10(11), p.1499. Doi: 10.3390/w10111499
- Rad, R.G., Shafaghat, R. and Yousefi, R., 2019. Numerical investigation of the immersion ratio effects on ventilation phenomenon and also the performance of a surface piercing propeller. Applied Ocean Research, 89, pp. 251-260. Doi: 10.1016/j.apor.2019.05.024
- Jalili, B. and Jalili, P., 2023. Numerical analysis of airflow turbulence intensity effect on liquid jet trajectory and breakup in two-phase cross flow. Alexandria Engineering Journal, 68, pp. 577-585. Doi: 10.1016/j.aej.2023.01.059
- Jalili, P., Kazerani, K., Jalili, B. and Ganji, D.D., 2022. Investigation of thermal analysis and pressure drop in non-continuous helical baffle with different helix angles and hybrid nano-particles. Case Studies in Thermal Engineering, 36, p.102209. Doi: 10.1016/j.csite.2022.102209
- Jalili, B., Aghaee, N., Jalili, P. and Ganji, D.D., 2022. Novel usage of the curved rectangular fin on the heat transfer of a double-pipe heat exchanger with a nanofluid. Case Studies in Thermal Engineering, 35, p.102086. Doi: 1016/j.csite.2022.102086
- Jalili, P., Ganji, D.D. and Nourazar, S.S., 2018. Investigation of convective-conductive heat transfer in geothermal system. Results in Physics, 10, pp.568-587. Doi: 10.1016/j.rinp.2018.06.047
- Yakut, R., Yakut, K., Yeşildal, F., Karabey, A., 2016. Experimental and numerical investigations of impingement air jet for a heat sink. Procedia Engineering, 157, pp. 3-12. Doi: 10.1016/j.proeng.2016.08.331
- Kamran, M., Nouri, N.M. and Askarpour, H., 2022. Numerical Investigation of the Effect of Trailing Edge Shape on Surface-Piercing Propeller Performance. Applied Ocean Research, 125, p.103230. Doi: 10.1016/j.apor.2022.103230
- Kamran, M. and Nouri, N.M., 2022. Regression Modeling of surface piercing propeller performance based on trailing edge geometrical parameters using CFD method. Ocean Engineering, 259, p.111752. Doi: 10.1016/j.oceaneng.2022.111752
- Kamran, M. and Nouri, N.M., 2022. Model testing system for surface-piercing propellers in a water tunnel: Design and in situ calibration methodology. Measurement, 199, p.111200. Doi: 10.1016/j.measurement.2022.111200