http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
이헌덕(Heon-deok Lee),김정수(Jeoung Su Kim),김준홍(June Hong Kim),서용권(Yong Kweon Suh) 한국전산유체공학회 2012 한국전산유체공학회 학술대회논문집 Vol.2012 No.5
In this paper we report the method of CFD analysis of blood-flow through a coronary artery. We obtained 3D geometric model from a pair of angiographic projected images. We used ANSYS CFX for our simulation with Careau-Yasuda model as the non-Newtonian fluid model and obtained the pressure drop, velocity field, and streamlines of the 3D artery model. We found that the pressure drop increases linearly with the flow rate and that the pressure drop is manily determined by the viscous friction on the artery walls but not by eddy downstream of the stenosis.
3차원 캐버티 표면의 스톡스 유동 가시화 및 수치해석을 통한 표면 특성 연구
허효원(Hyo Weon Heo),이헌덕(Heon-deok Lee),정원혁(Won Hyuk Jung),조동식(Dong Sik Cho),서용권(Yong Kweon Suh) 한국가시화정보학회 2011 한국가시화정보학회지 Vol.9 No.3
?;?;In this study, we propose a method for characterizing fluid-mechanical properties of a fluid surface, such as surface dilatational and shear viscosity, by matching the flow visualization and the numerical simulation for a stokes flow in a three-dimensional cavity. The surface flow is driven by shear stress exerted on the free surface by an external gas flow. The external gas flow is simulated by using a commercial code, while the Stokes flow is calculated by an in-house code. We have found that the surface flow is very sensitive to the surface tension and other properties. The qualitative feature of the surface flow can be reproduced by the parameter tuning.