DOI QR코드

DOI QR Code

Numerical investigation of the effect of the location of stern planes on submarine wake flow

  • Beigi, Shokrallah M. (Department of Mechanical Engineering, Engineering Faculty of Shahrekord University) ;
  • Shateri, Alireza (Department of Mechanical Engineering, Engineering Faculty of Shahrekord University) ;
  • Manshadi, Mojtaba D. (Department of Mechanical Engineering, Malek Ashtar University)
  • 투고 : 2020.01.15
  • 심사 : 2020.07.21
  • 발행 : 2020.09.25

초록

In the present paper, the effect of the location of stern planes on the flow entering the submarine propeller is studied numerically. These planes are mounted on three longitudinal positions on the submarine stern. The results are presented considering the flow field characteristics such as non-dimensional pressure coefficient, effective drag and lift forces on the stern plane, and the wake flow formed at the rear of the submarine where the propeller is located. In the present study, the submarine is studied at fully immersed condition without considering the free surface effects. The numerical results are verified with the experimental data. It is concluded that as the number of planes installed at the end of the stern section along the submarine model increases, the average velocity, width of the wake flow and its turbulence intensity formed at the end of the submarine enhance. This leads to a reduction in the non-uniformity of the inlet flow to the propulsion system.

키워드

과제정보

The authors gratefully acknowledge the various support staff of their respective organizations who have helped make this work possible.

참고문헌

  1. Carrica, P.M., Kim, Y. and Martin, J.E. (2019), "Near-surface self propulsion of a generic submarine in calm water and waves", Ocean Eng., 183, 87-105. https://doi.org/10.1016/j.oceaneng.2019.04.082.
  2. Dubbioso, G., Broglia, R. and Zaghi, S. (2017), "CFD analysis of turning abilities of a submarine model", Ocean Eng., 129, 459-479. https://doi.org/10.1016/j.oceaneng.2016.10.046.
  3. Fureby, C. and Norrison, D. (2019), "RANS, DES and LES of the Flow Past the 6: 1 Prolate Spheroid at 10 and 20 Angle of Incidence", in: AIAA Scitech 2019 Forum. p. 85. https://doi.org/10.2514/6.2019-0085.
  4. Groves, N.C., Huang, T.T. and Chang, M.S. (1989), Geometric characteristics of DARPA (Defense Advanced Research Projects Agency) SUBOFF models (DTRC model numbers 5470 and 5471). David Taylor Research Center Bethesda MD Ship Hydromechanics Dept.
  5. Huang, T., Liu, H.L., Groves, N., Forlini, T., Blanton, J., Gowing, S. and Liu, H.L. (1994), Measurements of flows over an axisymmetric body with various appendages in a wind tunnel: the DARPA SUBOFF experimental program.
  6. Jimenez, J.M., Reynolds, R.T., Smits, A.J., JimASnez, J.M., Reynolds, R.T., Smits, A.J., (2010), "The effects of fins on the intermediate wake of a submarine model", J. Fluids Eng., 132, 31102. https://doi.org/10.1115/1.4001010
  7. Liu, Z., Xiong, Y., Wang, Z., Song, W. and Tu, C. (2010), "Numerical simulation and experimental study of the new method of horseshoe vortex control", J. Hydrodyn. Ser. B, 22, 572-581. https://doi.org/10.1016/S1001-6058(09)60090-1.
  8. Liu, Z., Xiong, Y., Wang, Z., Wang, S. and Tu, C. (2011), "Experimental study on effect of a new vortex control baffler and its influencing factor", China Ocean Eng., 25, 83-96. https://doi.org/10.1007/s13344-011-0007-8.
  9. Pan, Y., Zhang, H. and Zhou, Q. (2019), "Numerical simulation of unsteady propeller force for a submarine in straight ahead sailing and steady diving maneuver", 1-15. https://doi.org/10.1016/j.ijnaoe.2019.04.002
  10. Posa, A. and Balaras, E. (2016), "A numerical investigation of the wake of an axisymmetric body with appendages", J. Fluid Mech., 792, 470-498. https://doi.org/10.1017/jfm.2016.47.
  11. Posa, A., Broglia, R., Felli, M., Falchi, M. and Balaras, E. (2019), "Characterization of the wake of a submarine propeller via Large-Eddy simulation", Comput. Fluids, 184, 138-152. https://doi.org/10.1016/j.compfluid.2019.03.011.
  12. Rao, Z. and Yang, C. (2017), "Numerical prediction of effective wake field for a submarine based on a hybrid approach and an RBF interpolation", J. Hydrodyn., 29, 691-701. https://doi.org/10.1016/S1001-6058(16)60781-3.
  13. Zhang, J., Zhao, F., Hong, F. and Xu, J. (2003), "Towing PIV and its application on the juncture forms of stern appendage with main-body", in: Optical Technology and Image Processing for Fluids and Solids Diagnostics 2002. International Society for Optics and Photonics, 208-213. https://doi.org/10.1117/12.509746.
  14. Zhihua, L., Ying, X. and Chengxu, T. (2011), "Numerical simulation and control of horseshoe vortex around an appendage-body junction", J. Fluids Struct., 27, 23-42. https://doi.org/10.1016/j.jfluidstructs.2010.08.006.