e-ISSN 2231-8542
ISSN 1511-3701

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Pressure Reduction on Blood Flow in Aorta Coronary Sinus Conduit

Siti Aslina Hussain, Tan Hong Tat, Mohd Ismail Abdul Hamid, Norhafizah Abdullah and Azni Idris

Pertanika Journal of Tropical Agricultural Science, Volume 20, Issue 2, July 2012

Keywords: Aorta coronary sinus conduit, blood flow, computational fluid dynamics, simulation, velocity

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Numerical studies of blood flow system of aorta coronary sinus conduit were carried out using ANSYSTMCFD simulation. A different model of conduit, which differs in the inlet diameter, was investigated. Theinvestigated inlet diameters are 3 mm, 4 mm and 5 mm. Pressure drop from 80 mmHg to 15 mmHgwas achieved for all the models. The comparison chart was produced to compare the pattern of pressurereduction as well as velocity distribution in each model. From the analysis of coronary sinus conduit,it was found that a narrow tube needs to be incorporated into the conduit produced. This is to inducea venturi effect to reduce the pressure drop of blood within a specific throat length. As conclusion, amodel of 3 mm inlet and a throat diameter of 1.13 mm show satisfactory result for pressure reductionfrom 80 mmHg to 15 mmHg. This particular model also has a lower peak velocity at the inlet zone ofthe throat section, which is more preferable in terms of Reynolds number.

ISSN 1511-3701

e-ISSN 2231-8542

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