Coupling 3D-1D for Blood flow Simulation in Carotid Bifurcation

Chiniforooshan Esfahani, Iman | 2012

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 43099 (08)
  4. University: Sharif University of Technology
  5. Department: Mechanical Engineering
  6. Advisor(s): Firoozabadi, Bahar; Saeedi, Mohammad Saeed
  7. Abstract:
  8. Recently, many investigations are done in the field of the modeling of the cardiovascular system. For the purpose of understanding of this system, mainly the location of formation and development of atherosclerosis, these investigations are so vital. The multi-scale modeling is an appropriate method to reduce the cost of calculation and also, this method simplifies the complicated model of cardiovascular system. This research presents a multi-scale 1D-3D modeling of cardiovascular system. In this model, the three dimensional geometry of carotid bifurcation is coupled with a one dimensional full model of cardiovascular system. We used some user defined function in the Fluent software for calculation procedure. Both three dimensional model and one dimensional model are base on finite volume method. Therefore, this research is a coupling model of cardiovascular system which is totally based on finite volume method. To improve the accuracy of the research, we use structured tree boundary condition which is more physiologically. The results of this research describe pressure and flow fields of the blood flow in the carotid bifurcation with excellent accuracy. The separation zones and recirculation flow can be absorbed in the results of three dimensional part of the coupling model. The plotting results of pressure and flow at the coupling boundary for both one dimensional and three dimensional models are the same, which verifies the coupling procedure
  9. Keywords:
  10. Carotid Bifurcation ; Multiscale Modeling ; Computational Fluid Dynamics (CFD) ; User Defined Functions

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