한국전산유체공학회:학술대회논문집
- 2000.05a
- /
- Pages.27-32
- /
- 2000
Numerical analysis of the 3D fluid-structure interaction in the sac of artificial heart
인공심장 sac내의 3차원 유체-구조물 상호작용에 대한 수치적 연구
- Park M. S. ;
- Shim E. B. ;
- Ko H. J. ;
-
Park C. Y.
;
- Min B. G.
- 박명수 (금오공과대학교 기계공학부) ;
- 심은보 (금오공과대학교 기계공학부) ;
- 고형종 (금오공과대학교 기계공학부) ;
-
박찬영
(서울대학교 의과대학 의공학과)
;
- 민병구 (서울대학교 의과대학 의공학과)
- Published : 2000.05.01
Abstract
In this study, the three-dimensional blood flow within the sac of KTAH(Korean artificial heart) is simulated using fluid-structure interaction model. The numerical method employed in this study is the finite element commercial package ADINA. The thrombus formation is one of the most critical problems in KTAH. High fluid shear stress or stagnated flow are believed to be the main causes of these disastrous phenomenon. We solved the fluid-structure interaction between the 3D blood flow in the sac and the surrounding sac material. The sac material is assumed as linear elastic material and the blood as incompressible viscous fluid. Numerical solutions show that high shear stress region and stagnated flow are found near the upper part of the sac and near the comer of the outlet during diastole stage.