Hourglass CFD Simulation Using DDPM and DEM

$225.00 Student Discount

  • The problem numerically simulates the Hourglass using ANSYS Fluent software.
  • We design the 3-D model by the Design Modeler software.
  • We Mesh the model by ANSYS Meshing software.
  • The mesh type is Structured, and the element number equals 244675.
  • We perform this simulation as unsteady (Transient).
  • We use the Discrete Concentrated Phase Method (DDPM).

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.


Hourglass CFD Simulation Using DDPM and DEM, ANSYS Fluent Training

In this project, an Hourglass with the DPM model was simulated, and the results were investigated using ANSYS Fluent software. We perform this CFD project and investigate it by CFD analysis. The present model is designed in 3-D using SpaceClaim.

The meshing of this present model has been generated by ANSYS Meshing software. The mesh type is Structured, and the total cell number is 244675. Also, due to the nature of the present problem, the transient solver has been enabled.


In this research, hourglass simulation was investigated using the DPM model. The particle path inside the hourglass was also observed using Ansys Fluent software. While the DPM strategy for CFD solutions is a great way to compute particle flow studies that reduce computational costs, this approach fails to provide reliable answers for simulating dense particles with concentrations greater than 10% by volume.

DDPM (Discrete Concentrated Phase Method) is used in CFD projects to solve this problem. The discrete element method, or DEM, is a numerical method for calculating the interaction of large numbers of small particles.

Despite the very close relationship between DEM and the “Molecular Dynamics” simulation method, features such as degree of rotational freedom, particle contact, and complex geometry generally distinguish this approach from other options.

This method is based on an explicit numerical procedure examining the interaction between particles through contact and particle motion. The ability of the DEM model allows the user to consider the motion of particles as the mass of a moving point, which includes the shape and volume of the particles.

In addition, an injection-type file was used to insert 92,000 particles into the hourglass in zero seconds. Moreover, the laminar model is used to solve the fluid flow equations.


After the simulation, the particle tracking values in the hourglass are extracted, and the animation is attached.


  1. Yvette Armstrong

    I’m interested in the Discrete Element Method (DEM) used in this package. Could you provide more information?

    • MR CFD Support

      Sure! The DEM used in our simulation is a numerical method typically used to compute the motion and effect of a large number of small particles. If you have specific requirements or scenarios you’d like to explore, we can customize the simulation accordingly.

  2. Gardner Lowe

    How does this package handle the simulation of granular flow?

    • MR CFD Support

      This package includes exercises that cover granular flow simulation. It provides insights into how different factors, like particle size and shape, can impact the flow behavior. We are also open to modifying the simulations to cater to your particular requirements

  3. Gavin Witting

    What principles are the particle-particle interaction simulations in this package based on?

    • MR CFD Support

      The particle-particle interaction simulations in this package are based on fluid dynamics principles and discrete element methods. They provide a detailed understanding of how particles interact with each other within a fluid medium. We can tailor these simulations to align with your specific needs.

  4. Ms. Justine Weimann

    Can you elaborate on the methodology used for the hourglass shape simulation?

    • MR CFD Support

      Certainly! The hourglass shape simulation in this package is based on real-world scenarios. It helps you understand how different factors can affect the flow of granular materials through a narrow opening. We can also adapt the simulation to fit your unique needs.

  5. Armand Purdy

    Can you share more about the Discrete Phase Model (DPM) used in this simulation?

    • MR CFD Support

      Absolutely! The DPM used in our simulation allows for a detailed analysis of particulate flows. It’s a powerful tool for understanding the behavior of particles within a fluid medium and can be customized to match your specific requirements.

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