불규칙영역에서의 격자망 자동발생 프로그램의 개발

Development of an Automatic Mesh-Generation Program in Irregular Domains

  • 김성희 (서울대학교 대학원) ;
  • 권순국 (서울대학교 농업생명과학대학)
  • 발행 : 1995.03.01

초록

In order to save time and efforts in generating finite element meshes in irregular houndaries of domains, it is needed to develop an automatic mesh-generator which can hoth promote the accuracy of solutions and reduce the run-time in operating finite ele- ment models. In this study, the advancing front technique of triangular mesh generation and the transforming technique from triangular meshes to quadrilateral meshes were used to de- velop a computer program for the automatic triangular and quadrilateral meshes in the mixed shape. Furthermore, to enhance the quadrilateral mesh quality, the techniques of Laplancian smoothing and interior mesh modification were employed. The mesh genera- tor was applied to evaluate its applicability to irregular and complex geometries such as Nakdong river bay. In has hoen shown that the automatic mesh generator developed is capable of automatically generating meshes for irreguiar and complex geometries with high qualities of meshes and with the simple input data of arbitrarily specified nodal spacing in bound- aries.

키워드

참고문헌

  1. 한국농공학회지 v.36 no.3 潮汐流動 解析을 위한 非線形 有限要素模型 (Ⅰ) 나정우;권순국
  2. 조류예측 유한요소 수치모형 개발 (Ⅲ) 농림수산부 · 농어촌진흥공사
  3. International Journal for Numerical Methods Engineering v.21 An Approach to Automatic Three Dimensional Finite Element Mesh Generation Cavendish,J.C.;D.A.Fiedl;W.H.Frey
  4. International Journal for Numerical Methods in Fluids v.6 Development of New Triangular Elements for Free Surface Flows Dhatt,G.;A.Soulaimani;Y.Ouellet;M.Fortin
  5. International Journal for Numerical Methods Engineering v.102 Laplacian-Isoparametric Grid Generation Scheme Hermann,L.R.
  6. International Journal for Numerical Methods Engineering v.29 Two-Dimensional Mesh Generation, Adaptive Remeshing and Refinement Jin,H.;N.E.Wiberg
  7. International Journal for Numerical Methods Engineering v.21 A New Mesh Generation Scheme for Arbitrary Planar Domains Lo,S.H.
  8. Engineering Fracture Mechanics v.41 Generation of High-Quality Gradation Finite Element Mesh Lo,S.H.
  9. International Journal for Numerical Methods Engineering v.26 A Finite Element Transitional Mesh Generation Procedure Using Sweeping Functions Wellford,J.L.C.;M.R.Gorman
  10. International Journal for Numerical Methods Engineering v.31 Mesh Relaxation; A New Technique for Improving Triangulations William,H.F.;D.A.Field
  11. International Journal for Numerical Methods Engineering v.32 A New Approach to the Development of Automatic Quadrilateral Mesh Generation Zhu,J.Z.;O.C.Zienkiewicz;E.Hinton
  12. International Journal for Numerical Methods Engineering v.3 An Automated Generation Schemen for Plane and Curved Surfaces by Isoparametric Coordinates Zienkiewicz,O.C.