Numerical simulation of cavitating flow past axisymmetric body

• Published in: International journal of naval architecture and ocean engineering Vol. 4; no. 3; pp. 256 - 266
• Main Authors: Kim, Dong-Hyun, Park, Warn-Gyu, Jung, Chul-Min
• Format: Journal Article
• Language: Korean
• Published: 2012
• Subjects: Reentrant jet; Navier-stokes equations; Ventilated cavitation; Homogeneous mixture model; Cavitating flow; Axisymmetric bodies
• ISSN: 2092-6782; 2092-6790

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.