# Spillway (3-D & Transient), ANSYS Fluent CFD Simulation Tutorial

\$150.00 Student Discount

• The present problem simulates the flow of water through a spillway by ANSYS Fluent software.
• The 3-D geometry of the present model is designed using Design Modeler software.
• The meshing of the model has been done using ANSYS Meshing software and the element number is 698691.
• The Transient solver is applied.
• To define the two-phase flow in this simulation, a Multiphase VOF (volume of fluid) model is used, considering the Free Surface model.

## Description

In this project, we have modeled a 3-D spillway using ANSYS Fluent software. We perform this CFD project and investigate it by CFD analysis.

Spillways are structures used to pass through excess water and floods from the top to the bottom of the dam. In fact, spillways are structures with a certain height that discharge excess water when the height of the water exceeds its height.

There are different types of spillways, including ogee, step, side, lotus, tunnel, siphon, etc. spillways. The present problem simulates the flow of water through a spillway.

This simulation has been done as a multiphase simulation using air as a primary phase and water as a secondary phase.Â  The height of the water level at the inlet is 0.155 m and the total height of the model is 0.306 m and considering that the height of the dam is 0.156 m.

The 3-D geometry of the present model is designed using Design ModelerÂ software. The meshing of the model has been done using ANSYS Meshing software and the mesh type is unstructured. The element number is 698691.

## Spillway Methodology

To define the two-phase flow in this simulation, a two-phase VOF (volume of fluid) model is used. Also, in this simulation, the gravity effect on the fluid is considered equal to -9.81 m/s2 along the y-axis.

## Spillway Conclusion

The resulting contours show the performance of his spillway. It is clear that the water flow is well passed by the spillway. Most flow velocities are in the area where the geometry is smaller and the flow enters more densely.

## Reviews

1. Clovis Schmeler

What is the benefit of using CFD for analyzing the spillway flow?

• MR CFD Support

CFD allows for detailed analysis of the flow characteristics over the spillway, which can provide valuable insights for design optimization and safety assessment.

Can the simulation results be used to optimize the design of the spillway?

• MR CFD Support

Yes, the simulation results can provide valuable insights into the flow behavior and pressure distribution in the spillway, which can be used to optimize its design for maximum efficiency and safety.

3. Prof. Luciano Stokes

How are the results of the simulation visualized?

• MR CFD Support

The results are visualized using contour plots of pressure and velocity, as well as pathlines of the flow.

4. Berenice Hamill

great work. well done!

5. Mr. Curtis Lindgren III

Can I contribute to this simulation?

• MR CFD Support