대한조선학회논문집 (Journal of the Society of Naval Architects of Korea)

  • 제44권1호
  • /
  • Pages.8-15
  • /
  • 2007
  • /
  • 1225-1143(pISSN)
  • /
  • 2287-7355(eISSN)
대한조선학회 (The Society of Naval Architects of Korea)
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진동하는 2차원 날개 단면 주위에 대한 점성 유동장 계산( Part 1. 동적실속이 없는 경우 )

Computation of Viscous Flows around a Two-dimensional Oscillating Airfoil ( Part 1. without Dynamic Stall )

  • 이평국 (충남대학교 선박해양공학과) ;
  • 김형태 (충남대학교 선박해양공학과)
  • Lee, Pyoung-Kuk (Dept. of Naval Architecture & Ocean Eng. Chungnam National Univ.) ;
  • Kim, Hyoung-Tae (Dept. of Naval Architecture & Ocean Eng. Chungnam National Univ.)
  • 발행 : 2007.02.20
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초록

In this paper, numerical calculations are performed to analyze the unsteady flow of NACA airfoil sections. In order to ease the flow computation for the fluid region changing in time, improve the quality of solution and simplify the grid generation for the oscillating foil flow, the computational method adopts a moving and deforming mesh with the multi-block grid topology. The multi-block, structured-unstructured hybrid grid is generated using the commercial meshing software Gridgen V15. The MDM (Moving & Deforming Mesh) and the UDF (User Define function) function of FLUENT 6 are adopted for computing turbulent flows of the foil in pitching motion. Computed unsteady lift and drag forces are compared with experimental data. in general, the characteristics of unsteady lift and drag of the experiments are reproduced well in the numerical analysis.

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참고문헌

  1. 김기섭, 박영하, 양승일, 이진태, 김경열, 문일성, 1999, 공기 강제 주입에 의한 캐비테이션 제어기법 개발, MOERI 과제 보고서
  2. 이평국, 김형태, 2004, '피칭 운동하는 NACA0012 날개단면 주위의 비정상 유동 수치해석,' 대한조선 학회 추계학술대회 논문집, pp. 281-284
  3. 현범수, 김우롱, 2006, '진동하는 사각날개의 날개 끝 와류 구조에 관한 실험적 연구,' 대한조선학회 논문집, 제 43권, 제 1호, pp.59-67 https://doi.org/10.3744/SNAK.2006.43.1.059
  4. Gowing S., Coffin, P. and Dai, C., 1998, 'Hydrofoil Cavitation Improvements with Elatically Coupled Composite Material,' 25th American Towing Tank Conference, Iowa City, Iowa
  5. Piziali, R.A., 1994, '2-D and 3-D Oscillating Wing Aerodynamics for a Range Angles of Attack Including Stall,' NASA TM-4632
  6. Stromberg, K.O., 1991, 'Deformation-Controlled Composite CP Propeller Blades,' Marine Defence

피인용 문헌

  1. Fluid-Structure Interaction Analysis of Two-Dimensional Wings vol.50, pp.5, 2013, https://doi.org/10.3744/SNAK.2013.50.5.343