Numerical simulation of cavitating flow past axisymmetric body
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초록
Cavitating flow simulation is of practical importance for many engineering systems, such as marine propellers,pump impellers, nozzles, torpedoes, etc. The present work has developed the base code to solve the cavitating flows past the axisymmetric bodies with several forebody shapes. The governing equation is the Navier-Stokes equation based on homogeneous mixture model. The momentum is in the mixture phase while the continuity equation is solved in liquid and vapor phase, separately. The solver employs an implicit preconditioning algorithm in curvilinear coordinates. The computations have been carried out for the cylinders with hemispherical, 1-caliber, and 0-caliber forebody and,then, compared with experiments and other numerical results. Fairly good agreements with experiments and numerical results have been achieved. It has been concluded that the present numerical code has successfully accounted for the cavitating flows past axisymmetric bodies. The present code has also shown the capability to simulate ventilated cavitation.
Abstract
Cavitating flow simulation is of practical importance for many engineering systems, such as marine propellers,pump impellers, nozzles, torpedoes, etc. The present work has developed the base code to solve the cavitating flows past the axisymmetric bodies with several forebody shapes. The governing equation is the Navier-Stokes equation based on homogeneous mixture model. The momentum is in the mixture phase while the continuity equation is solved in liquid and vapor phase, separately. The solver employs an implicit preconditioning algorithm in curvilinear coordinates. The computations have been carried out for the cylinders with hemispherical, 1-caliber, and 0-caliber forebody and,then, compared with experiments and other numerical results. Fairly good agreements with experiments and numerical results have been achieved. It has been concluded that the present numerical code has successfully accounted for the cavitating flows past axisymmetric bodies. The present code has also shown the capability to simulate ventilated cavitation.
참고문헌 (23)
- Ahuja, V., "Simulation of cavitating flow using hybrid unstructured meshes", Journal of Fluids Engineering, 123, pp.331~340 (2001)
- Chien, K. Y., "Prediction of change and boundary layer flows with a low-Reynolds-number turbulence model", AIAA Journal, 20(1), pp.33~38 (1982)
- Coutier-Delgosha, O., "Evaluation of the turbulence model influence on the numerical simulations of unsteady cavitation", Journal of Fluids Engineering, 125(1), pp.38~45 (2003)
- Calculation of the cavitating flow in venturi geometries using two fluid model, "Grogger, H. A.", ASME, ~, pp.FEDSM 98-5295 (1998)
- Kunz, R. F., "Multiphase CFD modeling of developed and supercavitaing flows", Proceedings of the Von Karman Institute, special course on supercavitating flows. Rhode-Saint-Genese, Belgium, pp.12~16 (2001)
- Kunz, R. F., "A preconditioned Navier-Stokes method for two-phase flows with application to cavitation prediction", Computers & Fluids, 29(8), pp.849~875 (2000)
- Multi-phase CFD analysis of natural and ventilated cavitation about submerged bodies, "Kunz, R. F.", ASME, ~, pp.FEDSM 99-7364. (1999)
- Computation of compressible multiphase flows, "Lindau, J. W.", AIAA, ~, pp.Paper 2003-1285 (2003)
- Homogeneous multiphase CFD modeling of large scale cavities, "Lindau, J. W.", ECCOMAS, ~ (2004)
- Merkle, C. L., "Computational modeling of the dynamics of sheet cavitation", Proceedings of the 3rd international symposium on cavitation. Grenoble, France, pp.307~311 (1998)
- Owis, F. M., "Computations of the compressible multiphase flow over the cavitating high-speed torpedo", Journal of Fluids Engineering, 125(3), pp.459~468 (2003)
- A technique for the prediction of unsteady incompressible viscous flows, "Park, W-G.", AIAA, ~, pp.Paper 93-3006 (1993)
- Park, W-G., "Numerical flow and performance analysis of waterjet propulsion system", Ocean Engineering, 32(14), pp.1740~1761 (2005)
- Reboud, J. L., "Two-phase flow modeling of unsteady cavitation", Proceedings of 2nd international symposium on cavitation. Tokyo, Japan, pp.39~44 (1994)
- Rogers, S.E., "Steady and unsteady solutions of the incompressible Navier-Stokes equations", AIAA Journal, 29(4), pp.603~610 (1991)
- Rouse, H., "Cavitation and pressure distribution, head forms at zero angle of yaw", Studies in engineering. Bulletin, 32 (1948), State University of Iowa
- Song, C., "Numerical simulation of cavitating flows by single-phase flow approach", Proceedings of 3rd international symposium on cavitation. Grenoble, France, pp.295~300 (1984)
- Shin, B. R., "A numerical study of unsteady cavitating flows", Proceedings of the 3rd international symposium on cavitation. Grenoble, France, pp.301~306 (1998)
- Staedtke, H., "Advanced three-dimensional two-phase flow simulation tools for application reactor safety(ASTAR)", Nuclear Engineering and Design, 235(2), pp.379~400 (2005)
- Senocak, I., "Interfacial dynamics-based modeling of turbulent cavitating flows, Part-2: Time-dependent computations", International Journal for Numerical Methods in Fluids, 44(9), pp.997~1016 (2004)
- Singhal, A. K., "Mathematical basis and validation of the full cavitation model", Journal of Fluids Engineering, 124(3), pp.617~624 (2002)
- Stutz, B., "Two-phase flow structure of sheet cavitation", Physics of Fluids, 9(12), pp.3678~3686 (1997)
- Preconditioning algorithms for the computation of multi-phase mixture flows, "Venkateswaran, S.", AIAA, ~, pp.Paper 2001-0279 (2001)