Item description

Simulation of flow inside a tube with a 90 ° bending (elbow)

Internal flow is one of the most important fluid flows. The flow inside the tube is one of the most important of these flows. Most current flows can be simulated by flow inside the pipe. Intravascular blood flow is one of these flow patterns.

In this analysis, it has been tried to simulate and analyze the flow inside a tube with a 90 degree bending (elbow), using Ansys Fluent software.

Geometry and Mesh

The geometry and mesh for this analysis is generated by Gambit software. The cell type used in this analysis is unstructured. The total number of cells produced for this geometry is 2420.


In this analysis, the viscosity model K-epsilon RNG has been used to check the fluid flow. The Standard Wall Function condition is also used near the wall.

Boundary Condition

The flow input is defined as Mass Flow Inlet and its value is 0.4 kg/s. The output is defined as Pressure-Outlet. The tube body is also defined as Wall.

Discretization of equations

In this analysis, the SIMPLE algorithm is used to discretize the coupled equation of velocity and pressure. The momentum equation has been discretized as Second Order Upwind.

The results are presented as velocity contours as well as streamlines.

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