Discrete Phase Flow Trap (Trapper) by Gravity CFD Simulation, ANSYS Fluent Tutorial

$80.00 Student Discount

  • The problem numerically simulates the discrete phase trap (TRAPPER) 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 420485.
  • We use the Discrete Phase Model (DPM) to define the particle trapping mechanism.
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In this project, an attempt has been made to simulate and analyze the flow of a particle trapping mechanism called the discrete phase trap (TRAPPER) by ANSYS Fluent software. We perform this CFD project and investigate it by CFD analysis.

We deal with discrete Phase flows in various mechanical and engineering systems and their application is increasing. Therefore, in order to have more efficient systems, we must have a complete understanding of such flows.

Multi-phase flows were classified into different groups, one of which is dispersed multiphase flows, which are very common in engineering systems. dispersed multi-phase flows include bubble flow, droplet flow, and particle flow.

In such a flow, one phase is considered the carrier phase, in which particles, bubbles and droplets are dispersed and form other phases. CFD simulation plays a prominent role in optimizing the design of distributed multi-phase flow systems.

The flow containing continuous and dispersed phases enters the computational domain with a speed of 5m/s.

The geometry of this model is designed in the ANSYS design modeler and meshed in ANSYS meshing software. The mesh type used for this geometry is unstructured and the element number is 420485.

Trap Methodology

particle trapping mechanism called the discrete phase trap (TRAPPER) by ANSYS Fluent software.

In order to simulate the particles, the discrete phase model is activated and Saffman lift force and pressure gradient forces are also applied to particles.

Also, since the trapping mechanism mainly works with gravity, gravity has been taken into account.

Trap Conclusion

The contours of, pressure, velocity, particle tracks, etc. are presented. The results show that 45.26% of the particles are trapped. Fluid flow is affected by the particles, and velocities are increased in areas where the particles are denser.



  1. Avatar Of Katelynn Conroy Dvm

    Katelynn Conroy DVM

    This tutorial really helped me understand the discrete phase trap mechanism in detail. I appreciate how well the gravity impact was demonstrated. Are the results indicating that optimizing the design could potentially increase the trapping percentage further?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your positive feedback! Yes, the results suggest that with careful design optimization, it is possible to increase the efficiency of the trapping mechanism and potentially trap a higher percentage of the particles.

  2. Avatar Of Aiden Skiles

    Aiden Skiles

    I’m impressed with the effectiveness of the TRAPPER in handling particle flows. Is it possible to adjust the model for different particle sizes or does it require a full simulation from scratch for each new size?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your positive feedback. Particle trapper simulations are adjustable for different particle sizes by altering the discrete phase model settings and initiating a new simulation run. There’s no need to start from scratch. The model adapts to the new conditions set for the particle size.

  3. Avatar Of Mandy O'Kon

    Mandy O’Kon

    I’ve gone through the tutorial for ‘Discrete Phase Flow Trap (Trapper) by Gravity CFD Simulation,’ and I’m impressed with the results. The trapping mechanism and the effectiveness of 45.26% trapping efficiency are intriguing. Thanks for the detailed analysis!

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your positive review! We’re delighted to hear that our tutorial on the discrete phase flow trap was helpful and that you’re satisfied with the content and results. We always strive to provide detailed and practical simulations that can aid in understanding complex systems. If you have further need for learning materials or assistance, feel free to reach out to us!

  4. Avatar Of Verna Turner

    Verna Turner

    Really impressed with how the discrete phase trap (TRAPPER) simulation reflects the trapping efficiency using ANSYS Fluent software. How was gravity factored into the model to affect particle behavior?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Gravity was accounted for by implementing it as a body force within the simulation. It affects the behavior of the discrete particles, causing them to follow trajectories that ultimately lead some of them to be trapped by the TRAPPER system. Gravity’s influence is significant as it’s the primary force enabling the functionality of the trapping mechanism in the model.

  5. Avatar Of Waylon Conroy

    Waylon Conroy

    I just want to say thank you! Your tutorial was amazing and really helped me understand the dynamics of discrete phase flow and the gravity trapping mechanism. The visual representations like particle tracking were especially useful.

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your kind words! We’re so glad to hear that our tutorial on the discrete phase flow trap by gravity was helpful to you. It’s great to know that the visual aspects, such as particle tracking, enhanced your understanding of the concepts. If you need further assistance or more resources for learning, feel free to reach out to us.

  6. Avatar Of Scottie Parisian

    Scottie Parisian

    The tutorial sounds comprehensive, but I wonder if there’s an explanation for the low efficiency? Only 45.26% of particles were trapped. Is there any modification to the design or operating conditions to improve this?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your attention to detail! The efficiency might be affected by several parameters such as the geometry of the trap, the inflow velocity, particle sizes, and other operating conditions. Modifying these factors could potentially result in higher trapping efficiency. Optimization studies can help in finding the best setup to improve performance.

  7. Avatar Of Krista Kovacek

    Krista Kovacek

    The tutorial was nicely detailed, but I’m curious about how the efficiency might change with different particle sizes or densities. Is there any info on that?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      In our tutorial, the focus was on a specific case with given particle sizes and densities. To understand how different particle sizes or densities would affect the efficiency, a series of simulations with variation in these parameters are typically required. Data on variations weren’t provided in this particular analysis but can be done in additional studies or simulations to evaluate the trap’s performance under differing conditions.

  8. Avatar Of Mohamed Koepp

    Mohamed Koepp

    I just finished the tutorial on Discrete Phase Flow Trap by Gravity and I’m impressed with the detail and concise simulation. The percentage of the trapped particles really emphasized the efficiency of the flow trap design.

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your positive feedback on our Discrete Phase Flow Trap tutorial! We’re glad to hear that the tutorial was clear and informative, and that the simulation data on particle trapping efficiency was insightful for you. We appreciate your review and are here if you have any more questions or need further assistance.

  9. Avatar Of Clifford Bosco

    Clifford Bosco

    I’m pleased with how the discrete phase flow trap simulation results were presented. The detail on particle tracking and the efficiency rate of the trapper you shared speaks to the quality of the tutorials provided by MR CFD Company. Keep up the great work!

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you very much for your positive review! We are thrilled to hear that you found the simulation results informative and clearly detailed. MR CFD Company always strives to provide high-quality tutorials, and we’re glad that you find them helpful. If you ever have further insights or require assistance with our learning products, please feel free to reach out to us.

  10. Avatar Of Prof. Adan Swift Dds

    Prof. Adan Swift DDS

    This tutorial was super informative, and I’ve managed to follow the steps for my project. Can’t thank you enough for the clear explanations and quality of the content!

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your kind words! We’re thrilled to hear that the tutorial was helpful and that your project benefited from it. If you have any more questions or need further assistance in the future, don’t hesitate to reach out. Best of luck with your future CFD endeavors!

  11. Avatar Of Cristobal Hudson

    Cristobal Hudson

    This product helped me increase the efficiency of my particle trapping mechanisms. The inclusion of forces like Saffman lift and accounting for gravity was particularly insightful!

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your positive feedback! We’re glad to hear that our tutorial on discrete phase flow traps was helpful in enhancing the efficiency of your particle trapping mechanisms. Understanding the impact of forces like the Saffman lift force and gravity is crucial for accurate CFD simulation, and we’re delighted our product has provided valuable insights.

  12. Avatar Of Dejah Lesch

    Dejah Lesch

    Is there any analysis on the effect of different particle sizes on the efficiency of the trap, or does the simulation only focus on a single particle size?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      The simulation can accommodate various particle sizes. The effect of different particle sizes on the trap’s efficiency can be analyzed by setting up multiple simulations, each with a specific size set for the discrete particles. However, the provided material does not specify if this approach has been taken, or whether a range of particle sizes was analyzed.

  13. Avatar Of Malika Harber

    Malika Harber

    The project shows a trapping efficiency of 45.26%. Can we change the parameters of the trap size or the input velocity to improve this efficiency?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Yes, both the trap dimensions and the input flow velocity are among the parameters that could be optimized to potentially improve the trapping efficiency. Modifying these could alter the interaction between the fluid and the particles and lead to better performance.

  14. Avatar Of Leon Toy Ii

    Leon Toy II

    I’ve just finished going through the ‘Discrete Phase Flow Trap’ tutorial and the clarity of explanations made understanding the process seamless!

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your positive feedback! We’re glad the tutorial was clear and informative. Our goal is to create resources that make complex simulation concepts accessible and easier to understand. We appreciate your review!

  15. Avatar Of Rickie Senger Md

    Rickie Senger MD

    I’m amazed by the detail in the CFD project you’ve done. Thanks to your comprehensive tutorial, I was able to understand the principles of the discrete phase trap and how you’ve applied them in ANSYS Fluent.

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you so much for your kind words! We’re thrilled to hear that our tutorial was helpful and in-depth for your understanding of discrete phase trap mechanisms in multiphase flows. Your grasp of the principles is vital to us, and we’re glad we could contribute positively to your learning experience. If you have any more questions or need further assistance in future projects, feel free to reach out!

  16. Avatar Of Lilly Quigley

    Lilly Quigley

    I’m highly impressed with the capability to model multiphase flows like in the discrete phase flow trap tutorial! Do the results indicate any ways to improve the efficiency of particle trapping beyond 45.26%?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your positive feedback! The CFD analysis can indeed provide insights for improving the trapping efficiency. While the current design achieved a 45.26% particle trapping rate, potential optimizations could include altering the trap geometry, adjusting input velocities, or changing particle properties. Each modification can be tested in simulation to predict their effects on trapping efficiency before implementing physical changes.

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