Solidification and Melting in Fuel Tank ANSYS Fluent CFD Simulation Tutorial

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  • Solidification & Melting in a gasoline fuel tank is simulated by ANSYS Fluent.
  • The geometry of the present model is drawn by Design Modeler software.
  • The model is then meshed by ANSYS Meshing software, and the total number of cells is equal to 511821.
  • The simulation is Transient.
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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.
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Geometry, Mesh, and CFD Simulation methodologygy explanation, result analysis and conclusion
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One of the disadvantages of frozen gasoline fuel is that the temperature drops during cold seasons or in cold places. When the gasoline temperature drops, sediments and adhesives are removed first. Then heavy hydrocarbon molecules begin to freeze and mummify as temperatures continue to decrease. To prevent the freezing of gasoline, it is necessary to raise the gasoline temperature in the fuel storage tanks. One way to increase the gasoline temperature in the fuel tank is to use pipes carrying the hot fluid flow. The use of helical tubes in situations where space constraints are due to greater heat transfer in a given space is particularly interesting. We designed the 3-D geometry of the model using Design Modeler software. The model consists of two main parts: a fuel tank and a spiral inner tube for hot water flow. We have used ANSYS Meshing software and unstructured mesh for the present model. The total number of cells is equal to 511821.


The present issue concerns the simulation of a gasoline fuel tank carrying a single-way reciprocating spiral tube passing through the tank. This inner tube carries a flow of water at a temperature higher than the temperature of the gasoline to increase the fuel temperature by creating heat transfer between the diesel and the water, thus preventing freezing inside the tank. Therefore, the present model uses a solidification and melting module for the simulation. The simulation is transient.


The maximum melting occurs near the helical pipes. So the liquid mass fraction will be increased as the heating process continues. This study is carried out in a limited time, and the results are obtained at the end of the simulation.


  1. Hilario Heathcote DDS

    Why do you use Design Modeler and ANSYS Meshing for your simulations?

    • MR CFD Support

      We chose Design Modeler and ANSYS Meshing because of their advanced capabilities and reliability. These tools allow us to create high-quality models and generate precise meshes, which are crucial for accurate simulations.

  2. Ms. Chanel Wilderman

    It was pretty satisfying.

  3. Odessa Abernathy

    I have a specific simulation in mind. Can you accommodate custom requests?

    • MR CFD Support

      Absolutely! We are always open to new ideas and would be happy to work on a custom simulation for you. Please feel free to share more details

  4. Prof. Ricky Herman

    Your simulations are incredibly detailed. Great work!

    • MR CFD Support

      Thank you! We put a lot of effort into ensuring our simulations are as detailed and accurate as possible.

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