Fluid-Structure Interaction Analysis of Symmetric Stenotic Arteries.

• Main Authors: vo ngoc khuong, 武玉康
• Other Authors: Hsu, Cheung Hwa
• Format: Others
• Language: en_US
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/48695230492413937340

碩士 === 國立高雄應用科技大學 === 精密模具與機械產研碩士外國專班 === 99 === The fluid-structure interactions play vital roles in artery collapse and plaque cap rupture, which are the leading cause of heart attack and stroke. The symmetric stenotic artery models with fluid-structure interactions (FSI) are introduced and solved using ADINA software to investigate the effects of compliant arterial wall which are considered with imposed inlet pressure for four stenotic severities. The unsteady blood flow is considered to be laminar, non-Newtonian and incompressible. The arterial wall is assumed to be hyperelastic, isotropic, incompressible and homogenerous. Mooney-Rivilin model is used for the compliant arterial wall. The inlet boundary condition of imposed pressure is critical to obtain realistic hemodynamic results in stenotic arteries. The FSI affects the hemodynamics significantly on the stenotic artery models, the arteries are considerably dilated and compressed due to the stenosis. The stenotic severity has important influence on recirulation length, wall stress and wall deformation