Fuel Injection inside a Chamber 2-D CFD Simulation

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In this project, Injection inside a 2D Chamber with DPM has been simulated, and the results of this simulation have been investigated.

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Description

Fuel Injection inside a Chamber 2-D CFD Simulation, ANSYS Fluent Training

The simulation is about fuel injection in a 2D chamber via ANSYS Fluent. In this project, a two-dimensional cylindrical chamber is designed. Fuel flow from the center and airflow from the outside into the chamber.

A Discrete Phase Model must be used to define fuel injection, and an injection process must be defined from the central part of the chamber. The airflow inside the chamber is continuous, and the fuel flow enters the chamber discretely.

Thus, the solution perspective changes from Eulerian to Lagrangian by creating an interaction between discrete particles and a continuous medium. The fuel material is injected surface type in the form of inert particles and has a velocity of 1 m.s-1 and a diameter of 0.0002 m, injected in 0 s to 1 s.

To define the boundary conditions, the velocity boundary condition for airflow is used; So that air enters the chamber at a speed of 0.2 m.s-1. The modeling is unsteadily (Transient), and the time step is equivalent to 0.002 s.

Geometry & Mesh

The present geometry is designed in a 2D model via Design Modeler. The computational zone is the interior of a chamber that includes an airflow inlet and a fuel inlet.

Fuel Injection Inside A 2D Chamber

The mesh of the present model has been done via ANSYS Meshing. Mesh is structured, and the number of production cells equals 9211.

Mesh 1 1

Set-up & Solution

Assumptions used in this simulation  :

  • Pressure-based solver is used.
  • The present simulation is unsteady.
  • The effect of gravity with a gravitational acceleration of 9.81 m.s-2 has been applied to the model.
Models
Viscous k-omega
k-omega model standard
Discrete Phase Model On
number of injections 1
injection type surface
particle type inert
Boundary conditions
Inlet (air) Velocity  Inlet
velocity magnitude 0.2 m.s-1
discrete phase BC type escape
Inlet (fuel) Velocity  Inlet
velocity magnitude 1 m.s-1
discrete phase BC type escape
Walls Wall
wall motion stationary wall
discrete phase BC type reflect
Outlet Pressure Outlet
gauge pressure 0 pascal
discrete phase BC type escape
Methods
Pressure-Velocity Coupling Coupled
pressure PRESTO
momentum second-order upwind
species fraction second-order upwind
turbulent kinetic energy first-order upwind
specific dissipation rate first-order upwind
Initialization
Initialization methods standard
gauge pressure 0 pascal
x-velocity 0.2 m.s-1
y-velocity 0 m.s-1

Fuel Injection inside a 2D Chamber Results

After calculation, 2D contours related to velocity and pressure, and DPM concentration are obtained. The contours show that The velocity and pressure in the fuel inlet section are higher than in other zones because it is injected into the space inside the chamber at a higher speed.

Also, a particle track related to the discrete phase model has been obtained in the chamber’s interior, which shows how the discrete phase is dispersed and its impact from the continuous airflow.

The simulation is performed in 2 s, and the discrete phase propagation process occurs in its initial 1 s. Thus, the discrete phase concentration contour and the discrete particle sequence show that the desired discrete particles are directed to the output port of the chamber over time.

Reviews

  1. Avatar Of Linda Maggio Dvm

    Linda Maggio DVM

    This session was immersive and insightful! The level of detail in demonstrating how both discrete and continuous phases interact within the chamber provided a clear understanding of fuel injection dynamics. Appreciate the comprehensive simulation setup explanations.

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your positive feedback! We’re thrilled to hear that you found our simulation on fuel injection in a 2-D chamber both immersive and informative. Our goal is always to provide detailed and clear insights into complex fluid dynamics, and we’re glad we met your expectations.

  2. Avatar Of Mr. Josh Runolfsdottir Sr.

    Mr. Josh Runolfsdottir Sr.

    I’m truly impressed by the detailed results obtained from the Fuel Injection inside a Chamber 2-D CFD Simulation by MR CFD Company, especially the representation of discrete phase dispersion and its interactions. The clarity on velocity and pressure variations throughout the chamber are particularly useful for analysis. Great work!

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your positive feedback on our Fuel Injection CFD simulation training! We are thrilled to hear that you found the detailed results and the representations of the discrete phase to be clear and informative. Your satisfaction with the analysis and the learning outcome is very important to us. If you have any further questions or need more insights, feel free to reach out!

  3. Avatar Of Mr. Danny Bartoletti Phd

    Mr. Danny Bartoletti PhD

    The detailed simulation steps helped me grasp the entire process well. I appreciate the inclusion of pressure and velocity contours and the clear explanation of the particle track results. Kudos on delivering a comprehensive training tool.

    • Avatar Of Mr Cfd Support

      MR CFD Support

      We’re thrilled to hear you found the training material comprehensive and useful! It’s great to know that our efforts in providing clear explanations and detailed simulation steps are appreciated. Thank you for taking the time to leave a positive review.

  4. Avatar Of Duncan Lemke

    Duncan Lemke

    The training and provided output demonstrate an in-depth simulation process, complemented by comprehensive modeling and thoughtful setup. Superb work on showing the discrete phase propagation seamlessly interacting with the continuous airflow. The visuals for tracking the particles add crucial understanding to the simulation’s effectiveness!

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your enthusiastic review! We are glad that the detailed simulations and the visualization of the discrete phase interactions provided you with an insightful understanding of the process within the chamber. Your feedback is appreciated and motivates us to continue delivering high-quality training materials.

  5. Avatar Of Danika Bode

    Danika Bode

    I’m truly fascinated by the approach taken for the interaction of discrete particles with a continuous medium. However, could you please clarify for me if the boundaries for fuel injection and air inflow have different conditions or do they operate under the same principles?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Yes, the fuel injection and air inflow have distinctly differentiated boundary conditions according to their specific roles in the simulation. For the fuel injection, we deploy a ‘Velocity Inlet’ with a velocity magnitude of 1 m/s for the discreetly entering fuel particles. Conversely, for the air inflow, a slower ‘Velocity Inlet’ is applied, with a velocity magnitude of 0.2 m/s, to represent the continuous flow of air into the chamber. The discrete phase boundary conditions reflect this difference, ensuring fuel particles efficiently interact with the air within the simulation environment.

  6. Avatar Of Antonina Daniel

    Antonina Daniel

    The explanation of the results from the fuel injection simulation was very informative! It’s fascinating to understand how the discrete particles are influenced by the airflow.

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your positive feedback! We’re glad to hear the result explanations provided clarity on the intricate interactions within the simulation. Your appreciation truly motivates us to continue delivering detailed and informative content!

  7. Avatar Of Darrel Gottlieb

    Darrel Gottlieb

    The training was excellent. It did a great job of elucidating fuel injection processes, and I could visualize the concepts thanks to the DPM concentration contours. Well-structured mesh and simulation steps made complex theories much easier to grasp!

    • Avatar Of Mr Cfd Support

      MR CFD Support

      We’re truly grateful for your positive review. It’s fantastic to hear that the DPM concentration contour visuals were helpful and that the step-by-step guidance made the content accessible. Your comprehension of the fuel injection process is precisely what we aim to achieve. Thank you for choosing our training product!

  8. Avatar Of Olen Walsh Sr.

    Olen Walsh Sr.

    This simulation seems incredibly detailed. Could you explain how turbulence is managed within this 2-D chamber scenario?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      The turbulence within the 2-D chamber is managed using the k-omega turbulence model. This statistical model handles turbulence by solving two transport equations, one for the turbulence kinetic energy (k) and the other for the specific dissipation rate (omega, ω), to provide a detailed description of the turbulent flow. The interaction of the continuous airflow with the injected fuel particles and any resulting turbulent eddies are accounted for by this model, enabling a realistic simulation of the dispersion of the fuel within the chamber.

  9. Avatar Of Mrs. Minnie Jerde Iv

    Mrs. Minnie Jerde IV

    The tutorial seems comprehensive, but could you explain if the fuel particle sequence is visualized at different time steps, and how can one interpret these visual results?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      In the tutorial, the fuel particle track reflecting the Discrete Phase Model is indeed visualized at different time steps, showing the path these discrete particles take as they are influenced by the continuous airflow inside the chamber. To interpret these visual results, you’d analyze how the particles distribute and propagate over time, observing their path-lines and their interactions, such as collisions with the chamber wall or their escape through the outlet, providing insights into the injection efficiency and mixing processes.

  10. Avatar Of Terrell Reichel

    Terrell Reichel

    Great level of detail in your simulation! It demonstrated a sophisticated understanding of CFD principles, especially the use of DPM in a 2D chamber environment. The technical insights from velocity and pressure distributions to DPM concentration have given me deeper insights into fuel injection systems. Thanks for such an enlightening product!

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your positive feedback! We’re delighted to hear that our Fuel Injection inside a Chamber 2-D CFD Simulation was able to enhance your understanding of CFD applications in fuel systems. If you have any more questions or need further information, please feel free to reach out.

  11. Avatar Of Miss Elvie Luettgen

    Miss Elvie Luettgen

    I learned a lot about fuel injection CFD simulation with this exceptional training product. The details provided were nuanced, and I appreciate the rigorous setup explained for handling the discrete phase injection and interaction with continuous airflow.

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your kind words! We are thrilled to hear that you found the Fuel Injection inside a Chamber 2-D CFD Simulation training insightful and helpful. Your success with understanding the complexities of fuel injection using CFD is our top priority. Please don’t hesitate to reach out if you have further questions or need additional information.

  12. Avatar Of Rhiannon Koss

    Rhiannon Koss

    I’m fascinated by the interplay between the continuous airflow and the fuel’s discrete phase. Can you describe how the discrete phase particles in the chamber evolve over time during the simulation?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      In this simulation, particles are initially introduced at a specific velocity and then interact with the continuous airflow in the chamber. Over time, the particles disperse throughout the chamber-track results show the particle paths and how the airflow influences their trajectories. Eventually, the particles are directed towards the outlet of the chamber due to the airflow’s velocity pattern and gravitational forces acting on them. During the simulation, visual results show the dispersion pattern and particle concentration in the chamber at different timestamps, providing insights into the particle’s evolution.

  13. Avatar Of Shirley Bayer

    Shirley Bayer

    I really enjoyed the detailed results showing how the fuel particles dispersed throughout the chamber over time. It was fascinating to see how these discrete particles interact with the continuous airflow.

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for taking the time to share your thoughts! We’re delighted to hear that the simulation and the visualization of the fuel dispersion provided you with a comprehensive understanding of the interaction within the chamber. Your feedback is very valuable to us!

  14. Avatar Of Pablo Cummerata

    Pablo Cummerata

    I am so impressed with the depth of results generated from the 2D fuel injection simulation. The detailed focus on discrete particle tracking alongside continuous airflow interaction has provided an in-depth understanding of the fuel injection process.

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your kind words! We’re thrilled to hear that our CFD simulation of fuel injection inside a chamber has provided you with a comprehensive insight into the process. Your satisfaction is our top priority, and we are delighted that the results have been so valuable to you.

  15. Avatar Of Mrs. Alanis Runte Dvm

    Mrs. Alanis Runte DVM

    I followed the step-by-step tutorial for setting up a Fuel Injection inside a Chamber 2D CFD Simulation, and I was able to run the simulation without any issues! The particle tracks showed the discrete phase getting directed to the outlet perfectly. Great tutorial!

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your positive feedback! We’re thrilled to hear that the tutorial was clear and that you were able to successfully run the simulation. If you have any further questions or need more assistance with your simulations, feel free to reach out!

  16. Avatar Of Christophe Mohr

    Christophe Mohr

    Brilliant presentation of the dynamic fuel injection process reveals the intricate phenomena exceptionally well. Especially impressed by the DPM concentration gradient—it exemplifies the nuanced interaction between particulates and airflow in such environments.

    • Avatar Of Mr Cfd Support

      MR CFD Support

      We greatly appreciate your positive feedback and are delighted to hear that our CFD simulation met your expectations. Your recognition of the detailed presentation and the subtle particle-airflow interactions is very encouraging for our team. If you have any further inquiries or need more assistance, please feel free to reach out.

  17. Avatar Of Prof. Albertha Friesen

    Prof. Albertha Friesen

    I am blown away by the level of detail in this 2D fuel injection simulation. The use of the Discrete Phase Model dovetails perfectly with the continuous airflow to showcase realistic fuel dispersion!

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your appreciation! We’re thrilled to hear that our simulation met your expectations and provided the detailed insights you were looking for. If you ever need more information or further assistance with our simulations, feel free to reach out.

  18. Avatar Of Claude Koelpin Md

    Claude Koelpin MD

    This review is absolutely descriptive and provides almost all the information about the simulation setup and the results obtained. Great job on detailing all the key setup features from geometry to boundary conditions and methods used.

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you so much for your comprehensive review! We are thrilled to hear that the simulation details provided a clear understanding of the setup and outcome. Your feedback is greatly appreciated, and we look forward to continuing to support your learning journey with our simulations. If you have any more questions or need further assistance, please don’t hesitate to get in touch.

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