Cascade CFD Simulation

This CFD simulation training explores the steady-state flow dynamics within a cascade using ANSYS Fluent’s Eulerian multiphase flow model. The focus is on simulating the interaction between water and air phases in the cascade environment under steady conditions.

Key aspects of this simulation include:

Eulerian Multiphase Model Setup: Configuring the Eulerian model for the water-air system. Water is defined as the primary continuous phase and air as the secondary dispersed phase.

Simulation Domain: Utilizing a pre-defined cascade geometry, typically representing a section of a hydroelectric system or water feature.

Phase Interaction: Defining the interface between water and air, including surface tension effects and momentum exchange.

Turbulence Modeling: Implementing an appropriate turbulence model to capture the complex, multiphase flow patterns in the cascade.

Boundary Conditions: Setting up inlet and outlet conditions, as well as wall treatments for the cascade structure.

Free Surface Modeling: Capturing the steady-state free surface between water and air as it flows through the cascade.

Post-processing and Analysis: Examining flow patterns, air bubble distribution, velocity profiles, and pressure distributions throughout the cascade.

This simulation provides insights into the steady-state multiphase flow behavior in cascades, with applications in hydropower systems and water feature design. Participants will gain skills in applying the Eulerian multiphase model to simulate complex water-air interactions in a structured flow environment under steady-state conditions.