Modelling of Drag Force Reduction for a Waterjet Propulsion System

Cerpinska, M.; Irbe, M.; Pupurs, A.; Burbeckis, K.

doi:10.2478/lpts-2021-0035

Abstract

The paper provides simulation results for SUP (Stand Up Paddle) board appendage resistance. Additional propulsion is added to the SUP board. It is equipped with a waterjet. The waterjet is attached to the board rudder. This increases the drag coefficient for rudder five times. To reduce the drag variable, design options for the waterjet duct were proposed. The simulation tests were performed using SolidWorks Flow software using two types of simulations, namely, the pressure on the body and the flow around the body. The objective was to streamline the bluff duct of the waterjet and thus to create the appendage design with minimum drag force from fluid flow and possibly greater Inlet Velocity Ratio. Calculations showed that rounding-off the edges of waterjet duct resulted in 35 % of drag coefficient reduction, while further streamlining reduced it by additional 10 %.

References

1. Jennings, G. (2007). Motorized water sports, water-based tourism, sport, leisure, and recreation experiences. USA: Elsevier.10.4324/9780080468310
Search in Google Scholar Back to article
2. Bertram, V. (2000). Practical ship hydrodynamics. UK: Butterworth-Heinemann.
Search in Google Scholar Back to article
3. Shariati, S. K., & Mousavizadegan, S. H. (2017). The Effect of Appendages on the Hydrodynamic Characteristics of an Underwater Vehicle near the Free Surface. Applied Ocean Research, 67, 31–43. DOI: 10.1016/j.apor.2017.07.00110.1016/j.apor.2017.07.001
Search in Google Scholar Back to article
4. Carlton, J. (2018). Marine propellers and propulsion. USA: Butterworth-Heinemann. DOI: 10.1016/B978-0-08-100366-4.00016-X10.1016/B978-0-08-100366-4.00016-X
Search in Google Scholar Back to article
5. Cooper, R. D., & Doroff, S. W. (1971). Unsteady propeller forces, fundamental hydrodynamics and unconventional propulsion. Rome, Italy: Office of Naval Research.
Search in Google Scholar Back to article
6. Gong, J., Guo, C. Y., Wang, C., Wu, T. C., & Song, K. W. (2019). Analysis of Waterjet-Hull Interaction and its Impact on the Propulsion Performance of a Four-Waterjet-Propelled Ship. Ocean Engineering, 180, 211–222. DOI: 10.1016/j. oceaneng.2019.04.00210.1016/j.oceaneng.2019.04.002
Search in Google Scholar Back to article
7. Brandau, J. H. (1968). Performance of Waterjet Propulsion Systems – A Review of the State-of-the-Art. Journal of Hydro-nautics, 2 (2), 61–73. DOI: 10.1109/ULTSYM.2013.033510.1109/ULTSYM.2013.0335
Search in Google Scholar Back to article
8. Specialist Committee on Validation of Waterjet Test Procedures. (2005). Final Report and Recommendations to the 23rd ITTC. In Proceedings of 24th International Towing Tank Conference, (pp. 387–415), 26 March 2002, Edinburgh, Scotland: The University of Newcastle.
Search in Google Scholar Back to article
9. Bulten, N. W. H. (2006). Numerical analysis of a waterjet propulsion system. Eindhoven, the Netherlands: Technische Universiteit Eindhoven. DOI: 10.6100/IR614907
Search in Google Scholar Back to article
10. Hoerner, S. F. (1965). Fluid dynamic drag: Practical information on aerodynamic drag and hydrodynamic resistance. Washington, D.C., USA: Hoerner Fluid Dynamics.
Search in Google Scholar Back to article
11. Kandasamy, M., Ooi, S. K., Carrica, P., & Stern, F. (2010). Integral Force/Moment Waterjet Model for CFD Simulations. Journal of fluids engineering, 132 (10), 101103–101112. DOI: 10.1115/1.400257310.1115/1.4002573
Search in Google Scholar Back to article
12. Cenqel, Y. A., & Cimbala, J. M. (2017). Fluid mechanics: Fundamentals and applications (4^th ed). New York, USA: McGraw-Hill Education.
Search in Google Scholar Back to article
13. Molland, A. F. (2011). The maritime engineering reference book: A guide to ship design, construction and operation. Hungary: Elsevier.
Search in Google Scholar Back to article
14. Ledoux, M., & Hami, A. E. (2017). Compressible flow propulsion and digital approaches in fluid mechanics. UK: Wiley-ISTE.10.1002/9781119368786
Search in Google Scholar Back to article
15. Vutukuru, S. K., Tipans, I., Viba, J., & Irbe, M. (2020). Form optimization and interaction analysis of plane symmetry prism in air. In the 19th International Scientific Conference “Engineering for Rural Development” (pp. 739–746), 20–22 May 2020, Jelgava, Latvia: Latvia University of Life Sciences and Technologies. DOI: 10.22616/ERDev2020.19.TF17010.22616/ERDev.2020.19.TF170
Search in Google Scholar Back to article
16. University of Tartu. (2013). Lecture 12. Comparing Measurement Results Using Measurement Uncertainty Estimates. Available at https://sisu.ut.ee/measurement/12-using-measurement-uncertainty-estimates-decision-making
Search in Google Scholar Back to article

Modelling of Drag Force Reduction for a Waterjet Propulsion System

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