Physics Setup
Solution Setup
Watch the following video for demonstrations:
Summary for the video:
- General -> Change from "steady" to "transient"
- Materials -> Fluid -> Change "Name" to "Blood" -> Change "Density" to 1060 kg/m^3 -> Select "Carreau" for Viscosity
Details for Carreau Model:
Coefficients: | Input Value |
---|---|
Time Constant, lambda (s) | 3.313 |
Power-Law Index n | 0.3568 |
Zero Shear Viscosity (kg/m-s) | 0.056 |
Infinite Shear Viscosity (kg/m-s) | 0.0035 |
Boundary Conditions
CLICK HERE to download the User Defined Function (UDF) file used in this tutorial.
Watch the following video for demonstrations:
Summary for the video:
- UDF: Define -> User Defined -> Functions -> Interpreted.
- Boundary Conditions -> Inlet -> Velocity Inlet -> Edit -> Velocity Magnitude -> Change "Constant" to "udf inlet_velocity".
- Outlet1 -> Pressure Outlet -> Edit -> Gauge Pressure 13332.
- Outlet2 same as outlet1.
For ANSYS 19.2, follow the steps below
- User Defined>Functions>Compiled
- Add UDF file vinlet_udf.c>Build>Read
- Boundary Conditions>Inlet>Velocity Inlet> Edit>Velocity Magnitude>Change "Constant" to "udf inlet_velocity".
- Outlet1>Pressure Outlet>Edit>Gauge Pressure 13332
- Outlet2 same as outlet1
Particle Tracking:
The motivation for tracking the particles here is to setup for creating particle trajectories later on.
Watch the following video for demonstrations:
Summary for the video:
- Define -> Injections -> Create -> Change "Particle Type" to Massless -> Input the coordinates (see the table below)
- Repeat the steps above to inject another particle (or more, if you like)
For ANSYS 19.2, follow the steps below
- Setting Up Physics>Model Specific>Discrete Phase Models>Injections
- Injections>Create>Change "Particle Type" to Massless>Input the coordinates (see the table below)
- Repeat the steps above to inject another particle
Summary of coordinates for example injections:
Injection | x coordinates | y coordinates | z coordinates |
---|---|---|---|
injection-0 | 0.001183 | 0.006242 | -0.0318313 |
injection-1 | 0.002758 | 0.004548 | -0.0318313 |