CFD analysis of multiphase blood flow within aorta and its thoracic branches of patient with coarctation of aorta using multiphase Euler - Euler approach

7th European Thermal-Sciences Conference

Ostrowski, Z.^1 ; Melka, B.^1 ; Adamczyk, W.^1 ; Rojczyk, M.^1 ; Golda, A.^2 ; Nowak, A.J.^1

Institute of Thermal Technology, Silesian University of Technology, Konarskiego 22, Gliwice

44-100, Poland^1

Department of Cardiology, Gliwice Medical Center, Kosciuszki 29, Gliwice

44-100, Poland^2

关键词: Coarctation of aortas;    Computational fluid dynamics modeling;    Congenital heart defects;    Euler-Euler approach;    Morphological elements;    Pulsatile blood flow;    Solid volume fraction;    Volumetric blood flow;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/745/3/032112/pdf
DOI  :  10.1088/1742-6596/745/3/032112

来源: IOP

【 摘 要 】

In the research a numerical Computational Fluid Dynamics (CFD) model of the pulsatile blood flow was created and analyzed. A real geometry of aorta and its thoracic branches of 8-year old patient diagnosed with a congenital heart defect - coarctation of aorta was used. The inlet boundary condition were implemented as the User Define Function according to measured values of volumetric blood flow. The blood flow was treated as multiphase: plasma, set as the primary fluid phase, was dominant with volume fraction of 0.585 and morphological elements of blood were treated in Euler-Euler approach as dispersed phases (with 90% Red Blood Cells and White Blood Cells as remaining solid volume fraction).