Angular position determination of heart valves in the pediatric ventricular assist device with use of computational fluid dynamics

• Autorzy: Jodko D. , Obidowski D. , Reorowicz P. , Kłosiński P. , Jóźwik K.
• Języki publikacji: EN

Abstrakty

EN

This study shows a method than can be used to determine the best angular position of heart valves installed at the inlet and the outlet of a blood chamber during the diastolic phase with use of Computational Fluid Dynamics (CFD). Steady state simulations of the blood flow through the blood chamber of Pediatric Ventricular Assist Device (PVAD) have been performed with ANSYS CFX 14.0. Main assumptions in the present paper have included: motionless discs, rigid walls, non-Newtonian model of blood. The obtained results show that areas of blood stagnation in the blood chamber are smallest for one particular angular position of the inlet valve and are not significantly dependent on the angular position of the outlet valve.

Słowa kluczowe

EN

CFD; pediatric VAD; heart valve; blood stagnation

PL

CFD; sztuczna komora serca; zastawka serca; zastój krwi

• Wydawca: Katedra Biomechatroniki, Wydział Inżynierii Biomedycznej Politechniki Śląskiej
• Czasopismo: Aktualne Problemy Biomechaniki
• Rocznik: 2014
• Tom: z. 8
• Strony: 57--62
• Opis fizyczny: Bibliogr. 6 poz.

Twórcy

autor

Jodko D.

• Institute of Turbomachinery, Lodz University of Technology, Lodz, Poland

autor

Obidowski D.

• Institute of Turbomachinery, Lodz University of Technology, Lodz, Poland

autor

Reorowicz P.

• Institute of Turbomachinery, Lodz University of Technology, Lodz, Poland

autor

Kłosiński P.

• Institute of Turbomachinery, Lodz University of Technology, Lodz, Poland

autor

Jóźwik K.

• Institute of Turbomachinery, Lodz University of Technology, Lodz, Poland

Bibliografia

• [1] Sonntag S.J., Kaufmann T.A., Büsen M.R., Laumen M.: Simulation of a pulsatile total artificial heart: Development of partitioned Fluid Structure Interaction model, Journal of Fluids and Structures, 38, 187–204, 2013
• [2] Sterkowicz S.: Fifty years later. Artificial heart – yesterday, today, tomorrow, Kardiochirurgia i Torakochirurgia Polska, 5, 216-221, 2008
• [3] Reorowicz P., Obidowski D., Kłosiński P., Jóźwik K.: Flow Modelling in the Pneumatic Ventricular Assist Device with Mesh Deformation and Immersed Body Techniques – Investigations of Stagnation Zones, IFMBE Proc., Budapest, Hungary, 2011
• [4] Bochenek A., Reicher M. Human Anatomy, Vol. III. Warsaw, PZWL, 1974
• [5] Jóźwik, K., Obidowski, D.: Numerical simulations of the blood flow through vertebral arteries, J. Biomech. 43, 177–185, 2010
• [6] Jodko D., Obidowski D., Reorowicz P., Jóźwik K., Simulations of the blood flow in the arterio-venous fistula for haemodialysis, Acta of Biomechanics and Bioengineering, Vol. 16, 69-74, 2014