The geometric model-based patient-specific simulations of turbulent aortic valve flows

2016/11/25 by E. Stupak, Rimantas Kačianauskas, Stupak, E. +14 · 14 citations
Chemical Engineering · Mathematics · Medicine · #Aortic valve #Cardiac Valve Diseases and Treatments #Cardiology #Coronary Interventions and Diagnostics #Finite element method #Flow (mathematics) #Intermittency #K-epsilon turbulence model #Mathematics #Mechanics #Medicine #Physics #Rheology and Fluid Dynamics Studies #Shear stress #Statistical physics #Thermodynamics #Turbulence

paper · open access · doi:10.24423/aom.2543

published in DOAJ (DOAJ: Directory of Open Access Journals) 69, 317-345

openalex publication_date 2016/11/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/01

Abstract

This paper presents the patient-specific simulations of the aortic valve based on the proposed geometric model. A structural analysis is performed by using the finite element method to determine the stress-strain state of the aortic valve. The study is focused on the investigation of various turbulence models crucial for the appropriate description of the flow in the deceleration phase, following the peak systole. A comparative study of the flow solution without a turbulence model and the numerical results obtained by using various turbulence models is also performed. The results yielded by the shear-stress transport k-ω model supplemented with the intermittency transition equation most closely match those of numerical simulations without a turbulence model.

Citations

• Two-equation eddy-viscosity turbulence models for engineering applications

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