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유한요소법을 이용한 폴리머 압출 공정해석에 관한 연구
A Study on Analysis of Polymer Extruder Process Using Finite Element Method

예영수   (현대 파워택  ); 김홍범   (서강대학교 기계공학과UU0000674  ); 이재욱   (서강대학교 화공학과UU0000674  ); 김낙수   (서강대학교 기계공학과UU0000674  );
  • 초록

    In this study, a finite element method program code which can be accomodate boundary conditions on the complex surfaces has been developed to simulate polymer extruder processes. The analysis method includes the fractional 4-step method for efficient computation time and compact usage of memory storage to solve the velocities and the pressure values from the Navier-Stokes equation. By using the developed program which was verified with simple Poiseuille flow mixture phenomena in single-and twin-screw extruder are analyzed. It is concluded that the proposed method resulte Poiseuille Poiseuille d in fair agreement with the exact solution of simple flow and the back flow near the entrance happens in single-screw model. It is identified that the location and values of maximum pressure in the twin screw extruder model. It is expected that the Velocity field found can be used to predict the degree of mixture in the extruder barrel.


  • 주제어

    폴리머 압출 공정 .   나비아 스톡스방정식 .   4단계 시간 분할법 .   외연-내연적 유한요소법.  

  • 참고문헌 (15)

    1. Choi, B. H. and Choi, S. H., 2001, 'Characteristics Design on Shape of the Extruder Screw,' KSMTE, Fall Annual Meeting, pp. 292-297 
    2. Choi, B. H. and Choi, S. H., Chi, C. K., 2002, 'Tool Shape Design for the Screw Flinht Cutting in Twin Screw Extruder,' KSPE, Spring Annual Meeting, pp. 824-828 
    3. Suh, Y. K., Kim, Y. K. and Moon, J. C., 1997, 'A Numerical Study on a Chaotic in a Model for a single Screw Extruder,' Transe. of KSME(B), Vol. 21, No. 12, pp. 1615-1623     
    4. Cho, S. H. and Kim, C. K., 2001, 'Optimum Design of the Screw Extruder using thermo-mechanical Analysis,' KSMTE, Spring Annual Meeting, pp. 28-33 
    5. Cho, S. H. and Kim, C. K., 2002, 'Numerical Study on the Behavior Characteristics of a Screw in Injection Molding Machine,' KSMET, Vol. 11, No.5, pp. 30-37     
    6. Potente, H., Kretschmer, K., Hormann, J., Senge, M., Mours, M., Scheel, G. and Winkelmann, Th. 2001, 'Process Behavior of special Mixing Elements in Twin-screw Extruders,' Int. Polymer Processing X VI, Vol.4, pp. 341-350 
    7. Brouwer, T., Todd, D.B. and Janssen, L.P.B.M., 2002, 'Flow Characteristic of Screws and Special Mixing Enhanceres in a Co-rotating Twin Screw Extruder,' Int. Polymer Processing X VII, Vol.1, pp. 26-32 
    8. Moon, H. Y., 1994, 'A Study on the Computational Analysis of Conduction Heat Transfer in a Three-dimensional Arbitary Domain by a Geometric Transformation Method,' Chonnam Natl. Univ. doctoral dissertation 
    9. Huebner, H.K., Thomton, E.A. and Byrom, T.G., 1995, 'The Finite Elemet Method for Engineers,' Third Edition, John Wiley & Sons, Inc. 
    10. Bertrand, F., Thibault, F., Delamare, L. and Tanguy, P.A. 2002, 'Adaptive finite element simulations of fluid flow in twin-screw extruders,' Computers & Chemical Eng., Vol. 27, pp. 491-500. 
    11. Schneider, G. E., 'Finite Element Sourion Procedures for Solving the Incompressible, Navier- stokes Equations using Equal Order Variable Interpolation,' Numerical heat Transfer, Vol. 1, pp. 433-451 
    12. Hughes, T. J. R., 1988, 'Finite Element Analysis of Incompressible Viscous Flows by the Penalty Function Formulation,' J. Comput. Phys., Vol. 30, No.1, pp. 1-60. 
    13. Ramaswamy, B., 1988, 'Finite Element Solution for Advection and Natural Convection Flow,' Comput. Fluids, Vol. 16, pp. 349-388 
    14. Choi, J. W. and Park, C. K. 1999, 'Numerical Analysis for Piston-Driven Intake Flows Using the Finite Element Method,' KSCFE, Vol. 4, No.2, pp. 39-46     
    15. Akin, J. E. 1994, 'Finite Elements for Analysis and Design,' Academic Press Limited 
  • 이 논문을 인용한 문헌 (4)

    1. Kim, Nak-Soo ; Kim, Hong-Bum ; Lee, Jae-Wook 2006. "Numerical Study of Internal Flow in Twin Screw Extruder and Its Mixing Performance Analysis" 大韓機械學會論文集. Transactions of the Korean Society of Mechanical Engineers. A. A, 30(1): 32~41     
    2. 2008. "" Korea-Australia rheology journal, 20(2): 79~88     
    3. 2009. "" Korea-Australia rheology journal, 21(4): 289~297     
    4. 2009. "" Korea-Australia rheology journal, 21(1): 17~25     

 저자의 다른 논문

  • 김홍범 (3)

    1. 2006 "이축 스크루 압출기내 유동의 수치 해석과 혼합 성능 분석" 大韓機械學會論文集. Transactions of the Korean Society of Mechanical Engineers. A. A 30 (1): 32~41    
    2. 2006 "Numerical analysis of internal flow and mixing performance in polymer extruder I: single screw element" Korea-Australia rheology journal 18 (3): 143~151    
    3. 2006 "Numerical analysis of internal flow and mixing performance in polymer extruder II: twin screw element" Korea-Australia rheology journal 18 (3): 153~160    
  • Lee, Jae-Wook (34)

  • Kim, Nak-Soo (44)

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