서지주요정보
경계면에 맞춘 유한 차분법을 이용한 고분자 사출 다이의 모사 = Polymer extrusion die simulation using boundary-fitted fininte difference scheme
서명 / 저자 경계면에 맞춘 유한 차분법을 이용한 고분자 사출 다이의 모사 = Polymer extrusion die simulation using boundary-fitted fininte difference scheme / 김형준.
저자명 김형준 ; Kim, Hyoung-Jun
발행사항 [대전 : 한국과학기술원, 1997].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8007504

소장위치/청구기호

학술문화관(문화관) 보존서고

MCHE 97006

휴대폰 전송

도서상태

이용가능

대출가능

반납예정일

초록정보

A method is developed to simulate polymer flow field in polymer extrusion dies based on the finite difference scheme. Boundary-fitted coordinate system has been introduced to generate finite difference grid on the die geometry. Three dimensional flow fields are analyzed in polymer extrusion die by this method. Boundary-fitted coordinate system is defined by a set of elliptic equations in two dimensional space. In this study, transform relations between physical domain and computational domain are adjusted to satisfy Laplace equation and designed to construct three dimensional coordinate system. It ensure smoothness of boundary-fitted coordinate grids. Several boundary conditions are considered to obtain reasonable grids. This boundary-fitted coordinate system exhibits several advantages: boundary condition can be handle easily, and simulation problems become more simple because finite difference scheme can be applied. The effect of die shape is considered by varying manifold angle and slot thickness. The effect of power-law index is also considered. Decreasing in power-law index of fluid leads to relative increase in flow rate in die center.

서지기타정보

서지기타정보
청구기호 {MCHE 97006
형태사항 vii, 62 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Hyoung-Jun Kim
지도교수의 한글표기 : 이태용
지도교수의 영문표기 : Tai-Yong Lee
학위논문 학위논문(석사) - 한국과학기술원 : 화학공학과,
서지주기 참고문헌 : p. 59-60
주제 옷걸이형 다이
유한 차분법
경계면에 맞춘 좌표계
Coat-hanger die
FDM
Boundary-fitted coordinate system
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