Abstract
Numerical studies of the blood flow system of aorta coronary sinus conduit were carried out using ANSYS™ CFD simulation. The pressure inside the conduit was investigated to ensure a pressure drop from 80 to 15 mmHg. It was aimed to model a coronary sinus conduit in three-dimension using ANSYS™ CFD. The simulation involved pre-modeling, modeling and simulation stages where the model will undergo each section of program in ANSYS™ CFD such as design modeler, meshing, pre-processing, solver and post-processing. From the analysis of coronary sinus conduit, it is found that a narrow tube needs to be incorporated into the conduit produce. This is to induce a venturi effect to reduce the pressure of blood from 80 to 15 mmHg within a specific throat length. A model of 3 mm inlet and throat diameter of 1.13 mm throat diameter show the best result for pressure reduction from 80 to 15 mmHg. The model gives a uniform pressure drop along the throat section of the conduit.
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- Symbol:
-
Definition (unit)
- \( \dot{\gamma } \) :
-
Strain rate (s−1)
- \( \ell \) :
-
Length of tube (m)
- D:
-
Diameter (m)
- Dm :
-
Major diameter (m)
- Dn :
-
Minor diameter (m)
- K:
-
Consistency index (Dimensionless)
- L:
-
Length (m)
- m:
-
Plane number (Dimensionless)
- n:
-
Power law index (Dimensionless)
- N:
-
Number of part of the tube (Dimensionless)
- P1 :
-
Pressure at point 1 (Pa)
- P2 :
-
Pressure at point 2 (Pa)
- Q:
-
Volumetric flow rate (m3/s)
- Re:
-
Reynolds Number (Dimensionless)
- T:
-
Temperature (K)
- To :
-
Reference temperature (K)
- V:
-
Velocity (m/s)
- α:
-
Angle of bending in radian (rad)
- λ:
-
Friction coefficient (Dimensionless)
- μ:
-
Viscosity (Pa s)
- ρ:
-
Density (kg/m3)
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Acknowledgments
First and foremost, I would like to express my deepest gratitude, appreciation and support to all the research team members. This research has been filed for patent by Innovation & Commercialisation Center of Universiti Putra Malaysia on 16 November 2009. The application number is PI20097028.
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Hussain, S.A., Tat, T.H., Hamid, M.I.A., Abdullah, N., Idris, A. (2012). Numerical Study of Blood Flow Pressure Drop in Aorta Coronary Sinus Conduit. In: Öchsner, A., da Silva, L., Altenbach, H. (eds) Analysis and Design of Biological Materials and Structures. Advanced Structured Materials, vol 14. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-22131-6_11
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DOI: https://doi.org/10.1007/978-3-642-22131-6_11
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