An Implicit Unstructured Finite Element Method for Diffraction of Water Waves by Two-Dimensional Floating Breakwaters

부유체 주위의 2차원 회절 문제를 위한 내율적 비정렬 격자 유한요소해법

  • 정구창 (삼성중공업(주) 조선플랜트연구소)
  • Published : 1997.11.01

Abstract

A hybrid element method is presented for two-dimensional diffraction problem of water waves. In this method, only a limited fluid domain close to irregular bodies is discretized into conventional finite elements, while the remaining infinite domain is treated as one element with analytical representations of high accuracy. A finite element grid is automatically generated by using Dealunay triangulation based on the Bowyer's algorithm and a linear system of equations is approximately solved with the ILU-CGS algorithm. To validate the present scheme, Computational results are compared with the existing experimental data and other numerical solutions.

Keywords

References

  1. Advanced Series in Ocean Engineering v.1 THE APPLIED DYNAMICS OF OCEAN SURFACE WAVES Chiang C.Mei
  2. Computer Methods in Applied Mechanics and Engineering v.61 An Adaptive Finite Element Scheme for Transient Problems in CFD R.Lohner
  3. AIAA 91-0726 Comparison of 2D Unstructured Grid Generation Techniques Gregory S.Spragle;William R.McGrory;Jiunn Fang
  4. International Journal For Numerical Methods In Engineering v.12 A Hybrid Element Method For Diffraction of Water Waves By Three-Dimensional Bodies Dick K.P.Y.Yue;Hsuan s.Chen;Chiang C.Mei
  5. The Computer journal v.24 no.2 Computing Dirichlet Tessellation A. Bowyer
  6. Engineering Education System v.2 Computational Fluid Dynamics For Engineering Klaus A.Hoffmann;Steve T.Chiang
  7. Communications in Applied Numerical Methods v.4 Some Useful Data Structures for the Generation of Unstructured Grids R.Lohner
  8. 전기학회 논문지 v.37 no.12 Delaunay 삼각화를 이용한 3차우너 자동요소분할 김형석
  9. 항공우주학회지 v.22 no.4 정렬 배후면 격자계를 이용한 Delaunay 삼각화 하태성;김종태;맹주성
  10. International Journal for Numerical Methods in Engineering v.24 FEM solution of Three dimensional Incompressible Fluid problems by a preconditioned conjugate residual method M.P.Robichad;P.A.Tanguy
  11. International journal of Numerical Methods in Fluids v.15 An ILU Preconditioner with Coupled Node Fill-In Iterative Solution of the Mixed Finite Element Formulation of the 2D and 3D Navier-Stokes Equations O.Dahl;S.O.Wille
  12. 한국해양연구소 연구 보고서 A Study on the Environmental Loading on Maritime Structures and the Basic Experimental Facilities 송원오(외)
  13. FINITE ELEMENTS : An Introduction v.1 Eric B.Becker;Graham F.Carey;J.Tinsley Oden
  14. International Journal For Numerical Methods In Engineering v.14 Some Properties Of A Hybrid Element Method For Water Waves J. A. Aranha;C.C.Mei;D.K.P.Yue
  15. International Journal for Numerical Methods in Engineering v.35 Preconditioning Technique for Non-Symmetric Matrices with Application to Temperature Calculations of Cooled Concrete Auke van der Ploeg
  16. International Journal for Numerical Methods in Fluids v.14 A Finite Element Solution of Three-Dimensional Mixed Convection Gas Flows in Horizontal Channels Using Preconditioned Iterative Matrix Methods Erik. O.Einset;Klavis F.Jensen
  17. 해양공간이용 대형 복합플랜트 개발(Ⅰ) 연구 보고서 경사파중 몰수형 평판에 의한 파랑변형 조일형;김현주
  18. 日本造船學會誌 v.809 浮消波提による養殖場沖合化の取り組み 高木儀昌
  19. 日本造船學會論文集 v.169 內部自由水を利用する浮消波提の消波性能に開する硏究 木楠 丹;栢木 他