Pulsatile Blood Flow in Arterial Bifurcation Simulation, ANSYS Fluent Training

$80.00 Student Discount

  • The problem numerically simulates the Pulsatile Blood Flow in Arterial Bifurcation using ANSYS Fluent software.
  • We design the 3-D model with the Design Modeler software.
  • We mesh the model with ANSYS Meshing software, and the element number equals 168367.
  • We perform this simulation as unsteady (Transient).
  • We use a UDF to define pulsatile velocity as a sinus function.
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The journal file in ANSYS Fluent is used to record and automate simulations for repeatability and batch processing.
editable geometry and mesh allows users to create and modify geometry and mesh to define the computational domain for simulations.
The case and data files in ANSYS Fluent store the simulation setup and results, respectively, for analysis and post-processing.
Geometry, Mesh, and CFD Simulation methodologygy explanation, result analysis and conclusion
The MR CFD certification can be a valuable addition to a student resume, and passing the interactive test can demonstrate a strong understanding of CFD simulation principles and techniques related to this product.



This project simulates unsteady pulsatile blood flow in an artery bifurcation simplified model by ANSYS Fluent software.

The fluid domain geometry is designed in the Design Modeler, and the computational grid is generated using Ansys Meshing. The mesh type is unstructured, and the element number is 168367.

The inlet’s blood mass flow rate and outlet are equal to 0.001570178 and 0.00078576 kg/s, respectively. The blood pressure in the inlet is equal to 250 Pa, approximately 1.87515 mmHg. It is worth mentioning that blood pressure in large arteries in the human body varies between 120 and 80 mmHg.

Pulsatile Blood Flow Methodology

The pulsatile nature of blood flow is simulated using a User-Defined Function (UDF), which changes the inlet velocity according to flow time as a sinus function.

Pulsatile Blood Flow Conclusion

The simulation solver in this project is unsteady, and the results shown here are in the flow time equal to 0.162s, representing the peak value for the velocity function. One of the most exciting results of this project is the determination of prone regions of artery wall rupture.

As seen from the pressure contour at a flow time equal to 0.16s, the blood pressure on the bifurcation tip, where two flow streams diverge from each other, reaches high values ​​equal to 125Pa, which is half the pressure of the fluid at the inlet.

Another interesting conclusion to make from the results is the regions that are most likely to form stenosis. In literature, areas with low Wall Shear Stress (WSS) are most likely to form stenosis. As shown in the figure illustrating the WSS values, the most likely region for stenosis formation is the tip of bifurcation.


  1. Avatar Of Rosamond Windler

    Rosamond Windler

    Can this model be used to simulate blood flow in other parts of the body?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Yes, while the current model represents an arterial bifurcation, the same principles and techniques can be applied to simulate blood flow in other parts of the body. We are open to customizing the simulation based on your specific needs.

  2. Avatar Of Beryl Jacobs

    Beryl Jacobs

    How does the simulation account for the bifurcation in the artery?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      The geometry of the model accurately represents an arterial bifurcation. The flow physics at the bifurcation are captured by solving the Navier-Stokes equations, which govern fluid motion.

  3. Avatar Of Macy Schulist Md

    Macy Schulist MD

    How does the simulation handle the pulsatile nature of the blood flow?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      The simulation handles pulsatile flow by incorporating time-dependent boundary conditions. These conditions mimic the natural rhythmic contraction and relaxation of the heart, which is essential for accurately simulating blood flow in arteries.

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