Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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A STUDY ABOUT THE EFFECT OF MODEL CONSTANTS OF TWO CAVITATION MODELS ON CAVITY LENGTH

서로 다른 두 개의 공동모델의 모델 상수값이 공동의 길이에 미치는 영향연구

  • Jin, M.S. (School of Mechanical Engineering, Pusan Nat'l Univ.) ;
  • Ha, C.T. (School of Mechanical Engineering, Pusan Nat'l Univ.) ;
  • Park, W.G. (School of Mechanical Engineering, Pusan Nat'l Univ.) ;
  • Jung, C.M. (Naval Systems R&D Institute Division 2, Agency for Defense Development)
  • 김미선 (부산대학교 기계공학부) ;
  • 하콩투 (부산대학교 기계공학부) ;
  • 박원규 (부산대학교 기계공학부) ;
  • 정철민 (국방과학연구소 6기술연구본부 2부)
  • Received : 2012.02.06
  • Accepted : 2012.08.07
  • Published : 2012.09.30
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Abstract

This work was devoted to compare two different cavitation models to study the dependency of model constants. The cavitation model of Merkle et al.(2006) and Kunz et al.(2000) were used for the present computational study. The cavitation models were coupled with the incompressible unsteady Reynolds-Averaged Navier-Stokes solver to indicate the vaporization and condensation processes. For this purpose, a preconditioning method was added as the pseudo-time term to solve the unsteady stiffness problems. For the validation of the numerical simulation, the computation was performed for the cavitating flow in a converging-diverging channel. The present results show that Merkle's cavitation model is independent to the model constants, and the higher numerical accuracy over Kunz's cavitation model.

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References

  1. 1994, Reboud, J.L., Delannoy, Y., "Two Phase Flow Modeling of Unsteady Cavitation," Proceeding of 2nd International Symposium on Cavitaion, Tokyo, Japan, pp.39-44.
  2. 2005, Staedkte, H., Deconinck, H., Romenski, E., "Advanced Three-Dimensional Two-Phase Flow Simulation Tools for Application Reactor Safety(ASTAR)," Nuclear Engineering and Design, 235, pp.379-400. https://doi.org/10.1016/j.nucengdes.2004.08.052
  3. 1998, Merkle, C.L., Feng, J.Z., Buelow, P.E.O., "Computational Modeling of the Dynamics of Sheet Cavitation," Third International Symposium on Cavitaion, Grenoble, France, April 7-10.
  4. 1999, Kunz, R.F., Boger, D.A., Stinebring, D.R., Chyczewski, T.S., Gibeling H.J., "Multi-Phase CFD Analysis of Natural and Ventilated Cavitation about Submerged Bodies," ASME paper FEDSM 99-7364, Preceedings of third ASME/JSME Joint Fluids Engineering Conference,, San Francisco, California.
  5. 2001, Inanc, S., Wei, S., "Numerical Simulation of Turbulent Flows with Sheet Cavitation," CAV, sessionA7.002.
  6. 2001, Lindau, J.W, Kunz, R.F., Mulherin, J.M., Dreyer, J.J., Stinebring, D.R., "Fully Coupled, 6-DOF to URANS, Modeling of Cavitating Flows Around A Supercavitating Vehicle," CAV03-OS-7-019.
  7. 2006, Merkle, C.L., Li, D., Sankaran, V., "Multi-Disciplinary Computational Analysis in Propulsion," 42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, Sacramento, Califomia.
  8. 2009, Ha, C.T., Park, W.G., Merkle, C.L, "Multiphase Flow Analysis of Cylinder Using A New Cavitation Model," Proceedings of the 7rd International Symposium on Cavitation, Michgan, USA.
  9. 2009, Ha, C.T., Park, S.I., Merkle, W.G., Merkle, C.L., "Evaluation of A New Cavitation Model," Proceedings of 2009 KSME Joint Fluids Engineering.
  10. 2010, Ha, C.T., & Park, W.G., "Application of Strongly Implicit Procedure Solver to solve Partially- and Super-cavitating Flows," ICCES MM'10, ICML20100714039.
  11. 2011, Kim, S.Y., Park, W.G., Jung, C.M., "Numerical Analysis of Cavitating Flow Past Cylinder with Three Different Cavitation Models," Korean Society for Computational Fluids Engineering, Vol.16 No.1, pp. 60-66. https://doi.org/10.6112/kscfe.2011.16.1.060
  12. 2004, Owis, F.M., Nayfeh, A.H., "Numerical Simulation of 3-D Incompressible, Multi-phase Flows over Cavitating Projectiles," European Journal of Mechanics B/Fluids, pp.339-351.