Bio-medical researchers have been relying on computational fluid dynamics to model and understand the physical mechanisms behind the formation and progression of hemodynamic disorders. Wall shear stress (WSS) exerted on the walls of the blood vessel due to the flow of blood is one of the main pathogenic factors leading to the development of such disorders. The magnitude and distribution of the WSS in a blood vessel can provide an insight into the locations of possible aneurysm growth. Moreover, blockages that build up over time can be predicted by having a qualitative understanding of the flow profile. Computational Fluid Dynamics can be used for modeling and understanding such vital internal flows and insights gained from such studies can help design patient-specific treatments. In this Ansys Fluent tutorial, you will learn how to model three dimensional internal blood flow in a bifurcating artery. You will create the computational mesh and set up the boundary conditions needed for the simulation. The Non-Newtonian behavior of blood flow will be modeled using the Carreau model. Moreover, a realistic time-varying boundary condition will be implemented using User Defined Functions (UDF) in order to mimic the pulsatile nature of blood flow. This SimCafe Fluids Course was developed by Dr. Rajesh Bhaskaran at Cornell University in partnership with Ansys. It serves as an e-learning resource to integrate industry-standard simulation tools into courses and provides a resource for supplementary learning outside the classroom. The fundamental concepts and the steps needed to successfully model this fluid flow problem are explained using immersive step-by-step walk-through videos. So, let's get started!

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Cornell University also offers a *Fluid Dynamics Simulations Using Ansys* online certificate authored by Dr. Rajesh Bhaskaran. Learn more here: https://ecornell.cornell.edu/fluiddynamics