S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Mechanical Aerospace Engineering (기계항공공학부) Others_기계항공공학부
수중 물체 주위 공동현상의 압축성-비압축성 이상유동 해석
COMPRESSIBLE -INCOMPRESSIBLE TWO-PHASE FLOW ANALSYSIS OF THE UNSTEADY CAVITATING FLOW AROUND SUBMERGED BODY
- 김민수; 김형준; 김종암
- Issue Date
- 한국전산유체공학회 2010년도 추계학술대회, pp. 155-161
- Cavitation changes hydrodynamic force on submerged body. And because of its formation characteristics, fatigue can occurs. So it needs to be predicted and controlled. But it requires numerical approaches at wide range of Mach number. In order to compressible-incompressible two-phase flow analysis, a system preconditioning technique is used. The robust, accurate and efficient numerical approaches [Ihm et al.(2008)] make feasible to analyze two-phase cavitating flow successfully. Various cavitation models are adopted to capture phase transition in cavity. With numerical simulation of cavitating flow around hemispherical forebody and NACA66 hydrofoil, the important features of cavitation are analyzed.