DES법을 이용한 SUBOFF 잠수함 모델 주위 유동 수치해석 연구
Numerical Simulation of the Flow Around the SUBOFF Submarine Model Using a DES Method
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참고문헌
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초록
In this study, the numerical investigation of the flow around the SUBOFF submarine model is performed by using the Detached Eddy Simulation (DES) method which is developed based on the SST k-ω turbulence model. At the DES analysis level, complex vortical flows around the submarine model are caused mainly by the vortices due to the appendages and their interactions with the flows from the hull boundary layer and other appendages. The complexity and scale of the vortical flow obtained from the numerical simulations are highly dependent on the grid. The computed local flow properties of the submarine model are compared with the available experimental data showing a good agreement. The DES analysis more reasonably estimates the physical phenomena inherent in the experimental result in a low radius of the propeller plane where vortical flows smaller than the RANS scale are dominant.
Abstract
In this study, the numerical investigation of the flow around the SUBOFF submarine model is performed by using the Detached Eddy Simulation (DES) method which is developed based on the SST k-ω turbulence model. At the DES analysis level, complex vortical flows around the submarine model are caused mainly by the vortices due to the appendages and their interactions with the flows from the hull boundary layer and other appendages. The complexity and scale of the vortical flow obtained from the numerical simulations are highly dependent on the grid. The computed local flow properties of the submarine model are compared with the available experimental data showing a good agreement. The DES analysis more reasonably estimates the physical phenomena inherent in the experimental result in a low radius of the propeller plane where vortical flows smaller than the RANS scale are dominant.
참고문헌 (20)
- Alin, N, "Current capabilities of DES and LES for submarines at straight course", Journal of Ship Research, 54(3), pp.184~196 (2010)
- Bhushan, S, "Evaluation of hybrid RANS", LES models for prediction of flow around surface combatant and Suboff geometries, 2013, pp.88, 834~849
- Bull, P, "The validation of CFD predictions of nominal wake for the SUBOFF fully appended geometry", 21st Symposium on Naval Hydrodynamics (1996)
- 변창용, "RANS법을 이용한 DARPA Suboff 잠수함의 저항 및 자항 해석", 한국전산유체공학회지, 23(3), pp.36~46 (2018), 한국전산유체공학회[DOI]
- Chase, N, "Simulations of the DARPA SUBOFF submarine including self-propulsion with the E1619 propeller", Master, pp.2012
- Resistance for DARPA SUBOFF as represented by model 5470, "Crook, B", David Taylor Research Center, ~, pp.Report DTRC (1990), SHD-1298-07
- Groves, N, "Geometric characteristics of DARPA SUBOFF models" (1989), David Taylor Research Center
- Huang, T.T, "Measurements of flows over an axisymmetric body with various appendages in a wind tunnel:the DARPA SUBOFF experimental program", 19th Symposium on Naval Hydrodynamics (1992)
- 정재환, "오픈폼을 활용한 자유진동하는 라이저 주위 유동의 LES 해석", 한국해양공학회지, 33(5), pp.387~393 (2019), 한국해양공학회[DOI]
- 정재환, "와류감쇠 및 저항저감형 나선형 해양 구조물 주위 유동 LES 해석", 대한조선학회 논문집, 49(5), pp.440~446 (2012), 대한조선학회
- 이상봉, "난류 촉진기 주위 천이 유동의 대형 와 모사를 위한 격자 테스트", 해양환경안전학회지, 23(1), pp.112~121 (2017), 해양환경안전학회[DOI]
- Lin, Y.H, "The investigation of a sliding mesh model for hydrodynamic analysis of a SUBOFF model in turbulent flow fields", Journal of Marine Science and Engineering, 8(10), pp.1~19 (2020)
- 박일룡, "SUBOFF 잠수함 모델의 캐비테이션터널 조건 저항 및 자항 수치해석 연구", 한국전산유체공학회지, 24(3), pp.50~58 (2019), 한국전산유체공학회
- 박금성, "Smagorinsky model을 이용한 실린더 및 익형 주위의 LES 난류유동해석", 대한조선학회 논문집, 41(4), pp.1~8 (2004), 대한조선학회
- Investigation of the stability and control characteristics of several configurations of the DARPA SUBOFF model (DTRC model 5470) from captive-model experiments, "Roddy, F", David Taylor Research Center, ~, pp.Report DTRC (1990), SHD-1298-08
- Sezen, S, "Investigation of self-propulsion of DARPA SUBOFF by RANS method", Ocean Engineering, 150, pp.258~271 (2018)
- "STAR-CCM+ 11.04 User Guide" (2018)[URL]
- Spalart, P.R, "Comments on the feasibility of les for wings, and on a hybrid rans", les approach, LES, pp.1997[DOI]
- Toxopeus, S, "Viscous-flow calculations for bare hull DARPA SUBOFF submarine at incidence", International Shipbuilding Progress, 55, pp.227~251 (2008)
- Yoon, H. S, "Development of numerical tool for the DNS", LES of turbulent flow for frictional drag reduction, 2004, pp.41(1), 47~54