Multi-Phase Flow in an Injector CFD Simulation

$120.00 Student Discount

  • The problem numerically simulates an Injector using ANSYS Fluent software.
  • We design the 3-D model by the Design Modeler software.
  • We Mesh the model by ANSYS Meshing software, and the element number equals 102752.
  • We use the VOF Multi-Phase model to define water and air in an injector.



Special Offers For Single Product

If you need the Geometry designing and Mesh generation training video for one product, you can choose this option.
If you need expert consultation through the training video, this option gives you 1-hour technical support.
The journal file in ANSYS Fluent is used to record and automate simulations for repeatability and batch processing.
editable geometry and mesh allows users to create and modify geometry and mesh to define the computational domain for simulations.
The case and data files in ANSYS Fluent store the simulation setup and results, respectively, for analysis and post-processing.
Geometry, Mesh, and CFD Simulation methodologygy explanation, result analysis and conclusion
The MR CFD certification can be a valuable addition to a student resume, and passing the interactive test can demonstrate a strong understanding of CFD simulation principles and techniques related to this product.


Multi-Phase Flow in an Injector CFD Simulation, ANSYS Fluent Tutorial

In this project, ANSYS Fluent software simulates Multi-Phase Flow in an Injector. We perform this CFD project and investigate it by CFD analysis.

The present model is designed in three dimensions using the Design Modeler. Three ducts have a square cross-section for water flow, a conical-shaped area, and a cylindrical chamber. The meshing of the present project has been done using ANSYS Meshing software. The element number is 102752.

Injector Methodology

The VOF Multi-Phase model, which consists of air and water flows, is used. Water flows through three curved ducts into a reservoir that only has airflow inside its space.

The curved structure of the ducts and the cone-shaped state on the air-filled tank distributes the water flow vortices into the injector, thereby discharging the water out of the surroundings of the cylindrical chamber (near the chamber wall) of the injector.

The water flow enters through the inlet boundary with a mass flow rate of 0.01kg/s. Moreover, the standard k-epsilon model is enabled to solve turbulent fluid equations.

Injector Conclusion

At the end of the solution process, two- and three-dimensional contours inside the injector are obtained related to the temperature, velocity, air and water volume fraction, streamlines, etc..

As seen in the water volume fraction contour, the water is injected through the curved channels and then flows through the cylindrical space. The curved channels cause a swirl in water flow, making sure the rotating flow pattern happens inside the cylindrical space.


  1. Dr. Brendon Zulauf DVM

    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.

  2. Prof. Bulah Gusikowski V

    How does the simulation model the multi-phase flow in the injector?

    • MR CFD Support

      The simulation uses the Volume of Fluid (VOF) method to capture the interface between the liquid and gas phases in the injector.

  3. Jovany Aufderhar

    Can I contribute to this simulation?

    • MR CFD Support

      We are open to contributions! Please share your ideas or suggestions.

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