Ocean Systems Engineering

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Numerical study of propeller boss cap fins on propeller performance for Thai Long-Tail Boat

  • Kaewkhiaw, Prachakon (Department of Maritime Engineering, Faculty of International Maritime Studies, Kasetsart University, Sriracha Campus)
  • Received : 2021.03.03
  • Accepted : 2021.11.23
  • Published : 2021.12.25
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Abstract

The present paper purposes a numerical evaluation of the Thai Long-Tail Boat propeller (TLTBP) performance by without and with propeller boss cap fins (PBCF) in full-scale operating straight shaft condition in the first. Next, those are applied to inclined shaft conditions. The actual TLTBP has defined an inclined shaft propeller including the high rotational speed, therefore vortex from the propeller boss and boss cap (hub vortex) have been generated very much. The PBCF designs are considered to weaken of vortex behind the propeller boss which makes the saving energy for the propulsion systems. The blade sections of PBCF developed from the original TLTBP blade shape. The integrative for the TLTBP and the PBCF is analyzed to increase the performance using computational fluid dynamics (CFD). The computational results of propeller performance are thoroughly compared between without and with PBCF. Moreover, the effects of each PBCF component are computed to influence the TLTBP performance. The fluid flows around the propeller blades, propeller boss, boss cap, and vortex have been investigated in terms of pressure distribution and wake-fields to verify the increasing efficiency of propulsion systems.

Keywords

Acknowledgement

The Ansys Fluent software was adopted in the research studies which has been supported by the Faculty of Engineering, Kasetsart University.

References

  1. Abar, I. and Utama, I.K. (2019), "Effect of the incline angle of propeller boss cap fins (PBCF)", Int. J. Technol., 10(5), 1056-1064. https://doi.org/10.14716/ijtech.v10i5.2256.
  2. Alder, R.S. and Moore, D.H. (1977), "Performance of An Inclined Shaft Partially-Submerged Propeller Operating Over A Range of Shaft Yaw Angle"s, David W. Taylor Naval Ship Research and Development Center, Bethesda, Maryland, USA.
  3. Bal, S. (2020), "Inclination angle influence on noise of cavitating marine propeller", Ocean Syst. Eng., 10(1), 49-65. https://doi.org/10.12989/ose.2020.10.1.049.
  4. Dubbioso, G., Muscari1, R. and Di Mascio, A. (2013), "CFD Analysis of propeller performance in oblique flow", Proceedings of the 3rd International Symposium on Marine Propulsors (smp'13), Launceston, Tasmania, Australia.
  5. Gaggero, S. and Villa, D. (2018), "Cavitating propeller performance in inclined shaft conditions with OpenFOAM: PPTC2015 test case", J. Mar. Sci. Appl., 17, 1-20. https://doi.org/10.1007/s11804-018-0008-6.
  6. Ghassemi, H., Mardan, A. and Ardeshir, A. (2012), "Numerical analysis of hub effect on hydrodynamic performance of propellers with inclusion of PBCF to equalize the induced velocity", Pol. Marit. Res., 19(2), 17-24. https://doi.org/10.2478/v10012-012-0010-x.
  7. Kaewkhiaw, P., Yoshitake, A., Kanemaru, T. and Ando, J (2015), "Experimental and numerical study of propeller performance for Long-Tail Boat in Thailand", Japan Soc. Naval Archit. Ocean Engineers, 20, 407-410.
  8. Kaewkhiaw, P., Yoshitake, A., Kanemaru, T. and Ando, J. (2016), "Evaluation of Thai Long-Tail Boat propeller performance and its improvement", Proceedings of the 12th International Conference on Hydrodynamics (ICHD), Netherlands.
  9. Kaewkhiaw, P. (2020), "CFD analysis of unsteady propeller performance operating at different inclined shaft angles for LONG-TAIL boat in Thailand", J. Nav. Archit. Mar. Eng., 17(2), 115-127. http://doi.org/10.3329/jname.v17i2.42622.
  10. Katayama, Toru., Nishihara, Yoshitaka. and Sato, Takuya. (2013), "Study On The Characteristics of SelfPropulsion Factors of Planing Craft With Outboard Engine", Article in Transactions of SNAME.
  11. Kawamura, T., Ouchi, K. and Nojiri, T. (2012), "Model and full scale CFD analysis of propeller boss cap fins (PBCF)", J Mar Sci Technol., 17, 469-480. https://doi.org/10.1007/s00773-012-0181-2.
  12. Krasilnikov, V., Zhang, Z. and Hong, F. (2009), "Analysis of unsteady propeller blade forces by RANS", First International Symposium on Marine Propulsors (smp'09), Trondheim, Norway.
  13. Lim, S.S., Kim, T.W., Lee, D.M., Kang, C.G. and Kim, S.U. (2014), "Parametric study of propeller boss cap fins for container ships", Int. J. Nav. Archit. Ocean Eng., 6, 187-205. http://dx.doi.org/10.2478/IJNAOE2013-0172.
  14. Nojiri, T., Ishii, N. and Kai, H. (2011), "Energy saving technology of PBCF and its evolution", Japan Inst. Mar. Eng., 46(3), 350-358. https://doi.org/10.5988/jime.46.350.
  15. Peng, C.H., Cheng, M., Ke, C., Fang1, Q.Z. and Jun, Y.C. (2013), "An integrative design method of propeller and PBCF", Proceedings of the 3rd International Symposium on Marine Propulsors (smp'13), Launceston, Tasmania, Australia.
  16. Peck, J.G. and Moore, D.H. (1973), "Inclined-Shaft Propeller Performance Characteristics", Report of SNAME, New York, USA.
  17. Ryu, T., Kanemaru, T., Kataoka, S., Arihama, K., Yoshitake, A., Arakawa, D. and Ando, J. (2014), "Optimization of energy saving device combined with a propeller using real-coded genetic algorithm", Int. J. Nav. Archit. Ocean Eng., 6, 406-417. http://doi.org/10.2478/IJNAOE-2013-0188.
  18. Schroeder, S. and Dai, C. (2010), "Numerical Simulation of Propeller Performance With An Inclined Shaft Arrangement", Report of Naval Surface Warfare Center Carderock Division, West Bethesda, USA.
  19. Seo, J., Lee, S.J., Han, B. and Rhee, S.H. (2016), "Influence of design parameter variations for propeller-bosscap-fins on hub vortex reduction", J. Ship Res., 60(4). http://doi.org/10.5957/JOSR.60.4.160003.
  20. Shields, Curtis E. (1965), "Open-Water Propeller Performance in Inclined Flow", David W. Taylor Naval Ship Research and Development Center, Bethesda, Maryland, USA.
  21. Sun, Y., Su, Y., Wang, X. and Hu, H. (2016), "Experimental and numerical analyses of the hydrodynamic performance of propeller boss cap fins in a propeller rudder system", Eng. Appl. Comput. Fluid Mech., 10, 145-159. https://doi.org/10.1080/19942060.2015.1121838.
  22. Taniguchi, K., Tanibayashi, H. and Chiba, N. (1969), Investigation Into The Propeller Cavitation In Oblique Flow, Mitsubishi Technical Bulletin.