Mixing of Carbon Dioxide and Ethanol CFD Simulation

$180.00 Student Discount

  • The problem numerically simulates the Mixing of Carbon Dioxide and Ethanol using ANSYS Fluent software.
  • We design the 2-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 73788.
  • We perform this simulation as unsteady (Transient).
  • We use the VOF Multi-Phase model to define carbon dioxide and ethanol.
  • We use a UDF to define time-dependent pressure at the model’s inlet.
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Description

Mixing of Carbon Dioxide and Ethanol (VOF) CFD Simulation, ANSYS Fluent Tutorial

The present problem simulates mixing two substances, including carbon dioxide and ethanol, in a rectangular tank by ANSYS Fluent software. We perform this CFD project and investigate it by CFD analysis.

The present model is designed in three dimensions using Design Modeler software. The present model consists of a vertical rectangular tank for mixing materials with dimensions of 0.06 m * 0.3 m, which has an inlet section at the bottom with a width of 0.002 m.

The meshing of the model has been done using ANSYS Meshing software. The mesh type used for this geometry is Structured, and the element number is 73788.

Also, the transient solver is enabled due to the nature of the problem, which is to investigate changes in the volume fraction of the mentioned phases.

Mixing Methodology

The VOF multiphase model has been used to simulate the two phases of carbon dioxide and ethanol in the present model. The constituents of this process include carbon dioxide with a molecular weight of 44.00995 kg/kmol and ethanol with a molecular weight of 28.966 kg/kmol.

The input flow enters the tank from the lower part with a temperature of 300 K. The inlet flow pressure is variable and time-dependent. For this purpose, the pressure inlet boundary condition at the input boundary is used, which has a UDF in the form 8000000 + 66666.666 * t.

Also, the temperature of the entering flow is set to 300K. This simulation process was performed in 180 s with a time step of 0.5 s. Furthermore, the standard k-epsilon model and energy equation are used to solve the turbulent fluid equations and calculate temperature distribution within the domain.

Mixing Conclusion

At the end of the solution process, two-dimensional contours of temperature, pressure, velocity, and volume fraction for each phase are obtained.

These contours are obtained at the last second of the simulation process interval. For instance, as seen in ethanol volume fraction and velocity contours, a secondary flow will form within the domain and cause the mixing process.

Reviews

  1. Avatar Of Mrs. Orie Hegmann V

    Mrs. Orie Hegmann V

    The tutorial seems to cover the mixing process well. I’m curious about the secondary flow mentioned in the conclusion. Could you explain how this secondary flow is formed within the domain during the simulation?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      In this simulation, the secondary flow is a result of the complex interaction between the carbon dioxide and ethanol as they are swirling and turbulent in nature. The varying densities, coupled with the inlet flow pressure and tank geometry, contribute to creating a circulation pattern that supports the mixing of both phases effectively. This secondary flow helps in homogenizing the components within the tank as observed in the volume fraction and velocity contours.

  2. Avatar Of Emilia Bednar Iii

    Emilia Bednar III

    This tutorial sounds very comprehensive. Were there any specific challenges in setting up the volume of fluid (VOF) model for the carbon dioxide and ethanol mixture, given their different properties?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Our tutorial indeed guides through each step comprehensively. One of the main challenges in setting up the VOF model was ensuring proper distinction and interaction between the carbon dioxide and ethanol phases. Precise definitions of material properties and careful setup of the multiphase model were essential in simulating the realistic behavior of both phases during the mixing process.

  3. Avatar Of Kelvin Stark

    Kelvin Stark

    What a fantastic example of multi-phase flow CFD simulation! This project really highlights the detailed approach MR CFD Company takes in conducting complex simulations. The simulation encompasses a sensitive mixing and provides valuable insights.

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for taking the time to write such a positive review! We’re really glad that you found the multi-phase flow CFD simulation enlightening and helpful. We strive to provide detailed and accurate simulations to assist in various research and industry requirements. Your feedback is much appreciated!

  4. Avatar Of Astrid Graham

    Astrid Graham

    The tutorial you provided for the ‘Mixing of Carbon Dioxide and Ethanol CFD Simulation’ was incredibly detailed and educational. I was able to follow along easily, and the visual aids really helped solidify my understanding of VOF simulations.

    • Avatar Of Mr Cfd Support

      MR CFD Support

      We are thrilled to hear that our tutorial for the ‘Mixing of Carbon Dioxide and Ethanol CFD Simulation’ was helpful to you. It’s great to know that the detailed explanations and visual components contributed to your learning experience. We always strive to provide useful and comprehensive educational materials. Thank you for taking the time to share your positive feedback!

  5. Avatar Of Prof. Jayde Kiehn

    Prof. Jayde Kiehn

    This mixing simulation tutorial looks thorough. Is it suitable for beginners just starting with CFD to understand complex multi-phase flows?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Absolutely! This tutorial is designed to be accessible for novice users while still delving into the complexities of multi-phase flow simulation. Through each detailed step in the procedure, a beginner gaining proficiency in CFD analysis should find the methodological approach informative and engaging.

  6. Avatar Of Celestine Stokes

    Celestine Stokes

    The tutorial sounds very comprehensive, but can you provide details about the kind of post-processing techniques used to analyze the CO₂ and ethanol mixing results?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Certainly! For visualizing the mixing process between CO₂ and ethanol, several post-processing techniques are utilized. This includes generating two-dimensional contours of temperature, pressure, velocity, and volume fraction for each phase. These contours allow us to observe the formation of secondary flows and analyze how they contribute to the mixing efficiency. We also examine the distribution and interaction of the two phases over time, providing insights into the effectiveness of the mixing process.

  7. Avatar Of Ms. Margarett Satterfield

    Ms. Margarett Satterfield

    This tutorial made it easy to follow the mixing process of carbon dioxide and ethanol. The details were clearly laid out, and the inclusion of the UDF for the inlet pressure provided depth to the simulation. Well done on creating an understandable guide for such a complex interaction!

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for the positive feedback! It’s fantastic to know that you found the tutorial clear and informative for the mixing process simulation. If you have any more questions or need further assistance, please feel free to reach out.

  8. Avatar Of Dr. Ahmad Cruickshank

    Dr. Ahmad Cruickshank

    Fantastic tutorial on VOF CFD simulation for carbon dioxide and ethanol mixing! The step-by-step guide was clear, and the inclusion of UDF for the time-dependent pressure inlet condition is quite advanced. It really helped me understand the process dynamics over the simulation period.

    • Avatar Of Mr Cfd Support

      MR CFD Support

      We’re thrilled to hear the tutorial was helpful to you! Thank you for the kind words. It’s good to know the detailed guide and use of User-Defined Functions (UDF) for advanced boundary conditions met your expectations. If you have any further questions or need assistance with future projects, don’t hesitate to reach out.

  9. Avatar Of Clotilde Little

    Clotilde Little

    I just wanted to say that the quality of the tutorial for the mixing of Carbon Dioxide and Ethanol was exceptionally good! It guided me flawlessly through the complex CFD simulation process.

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your feedback! We’re delighted to hear that our tutorial met your expectations and helped you through the complexities of the simulation. Your satisfaction with our learning materials is our top priority, and we look forward to bringing you more quality content in the future!

  10. Avatar Of Fay Lynch

    Fay Lynch

    I’m interested in knowing how the UDF for the pressure inlet boundary condition is determined?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      The User-Defined Function (UDF) for the pressure inlet boundary is designed to adjust the pressure at the inlet as a function of time to properly simulate the dynamic nature of the mixing process. The specific form of the UDF and the coefficients used are likely based on empirical data or design requirements for the process being simulated.

  11. Avatar Of Dejah Moore

    Dejah Moore

    The tutorial was very helpful! After following the steps, I understand much better how to set up and simulate the interaction between two different substances. The snapshots and clear instructions helped me to grasp the concepts quickly. Great job on providing such an in-depth learning tool!

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your kind words! We’re thrilled to hear that our tutorial on the mixing of carbon dioxide and ethanol in ANSYS Fluent was helpful to you. If you have any further questions or need assistance with other simulations, feel free to reach out. We are always here to support your learning journey!

  12. Avatar Of Derek Kerluke

    Derek Kerluke

    The review provided is complementing the product and does not require further information.

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your positive feedback on our mixing simulation tutorial! We’re thrilled to hear that our detailed methodology and comprehensive results met your expectations. It’s great to see that the contours at the end of the simulation process effectively demonstrated the mixing process. We appreciate your support and look forward to providing more valuable learning experiences!

  13. Avatar Of Prof. Myles Hilpert Sr.

    Prof. Myles Hilpert Sr.

    Absolutely impressed by the level of detail in the mixing investigation for carbon dioxide and ethanol. Seeing the secondary flow effects visualized in the volume fraction and velocity contours was enlightening. Great work on this tutorial!

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for the positive feedback! We’re delighted that you found the contour visualizations and the level of detail in our tutorial so enlightening. Our team is committed to providing comprehensive and detailed analyses. We appreciate your appreciation!

  14. Avatar Of Mrs. Eden Zulauf Ii

    Mrs. Eden Zulauf II

    I’m curious about how the simulation results are visually represented. Are there animations or only static contours?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      In the CFD simulation results, typically both static contours and animations can be provided to visualize the mixing process. The contours offer a detailed snapshot of different simulation variables such as temperature, pressure, and concentration at specific time points. Animations, however, can give a dynamic representation of the entire simulation time frame, showing how the mixing of carbon dioxide and ethanol evolves over time.

  15. Avatar Of Jamaal Kuhlman

    Jamaal Kuhlman

    I found the dynamic aspect of the pressure controls intriguing in the carbon dioxide and ethanol mixing simulation. Can you tell me more about how this time-dependent pressure variation influences the mixing process?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      The time-dependent pressure variation at the inlet creates a pulsating flow, which immensely contributes to the mixing efficiency within the tank. This pulsation helps to churn the mixture and improves the contact between the carbon dioxide and ethanol molecules, promoting better homogeneity. By carefully adjusting the amplitude and frequency of the pressure variation through the UDF, it’s possible to control the mixing process dynamically and optimize it for better results.

  16. Avatar Of Earnestine Von V

    Earnestine Von V

    I am really impressed with the results of the CO2 and ethanol mixture simulation. The detailed analysis must have provided valuable insights. Can you confirm if the UDF used for varying the inlet pressure was sufficiently incorporated during the simulation stages?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your kind words and interest in the carbon dioxide and ethanol mixing simulation. We can confirm that the User-Defined Function (UDF) was carefully programmed and successfully incorporated to model the variable inlet pressure over time. It allowed us to accurately capture the effects of pressure changes on the mixing process, ensuing reliable and valuable insights from the simulation outcomes.

  17. Avatar Of Foster Swift

    Foster Swift

    The tutorial was very detailed and taught me a lot. The step by step explanation of operations was incredibly helpful for visualizing the complex interaction of carbon dioxide and ethanol. Great work!

    • Avatar Of Mr Cfd Support

      MR CFD Support

      We’re genuinely thrilled to see that the tutorial was helpful and met your expectations! Thank you for taking the time to explore our product and share your feedback. If you ever have any further questions or need assistance with other simulations, please don’t hesitate to reach out.

  18. Avatar Of Joanie Bosco

    Joanie Bosco

    I am curious, does the VOF model in this tutorial take into account the possible reactions that might occur between carbon dioxide and ethanol under certain conditions?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      No, the VOF model used in this tutorial focuses on the physical mixing of these two substances rather than any potential chemical reactions between them. To model reactive flows involving chemical species, additional setup and models such as species transport would be required.

  19. Avatar Of Madyson Corwin

    Madyson Corwin

    The tutorial was super helpful! The part where we adjusted the UDF for variable pressure inlet really clarified how to implement changing conditions during the simulation.

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your positive feedback! We are thrilled to hear that the tutorial was helpful and that you found the UDF implementation particularly clear. If you need any further assistance or have more questions in the future, please feel free to reach out to us.

  20. Avatar Of Anissa Erdman Sr.

    Anissa Erdman Sr.

    I’m so impressed with the detailed analysis of the carbon dioxide and ethanol mixing simulation using ANSYS Fluent. The tutorial must be a treasure trove of valuable insights for anyone interested in multiphase flow modeling. The fact that it uses the VOF model for two substances with a transient solver really showcases the dynamic capabilities of the solver. Adding the effects of temperature and variable inlet pressure makes the simulation even more realistic. Great job on the explanation!

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your kind words! We’re glad to hear that the tutorial was helpful and provided you with valuable insights into multiphase flow modeling using ANSYS Fluent. It’s always our goal to offer comprehensive and content-rich tutorials for our users. If you have any further questions or need additional information, feel free to reach out! Happy modeling!

  21. Avatar Of Edwardo O'Reilly

    Edwardo O’Reilly

    Can you explain if this simulation accounts for the differences in viscosity between carbon dioxide and ethanol?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Yes, the simulation takes into consideration the different properties of carbon dioxide and ethanol, including their viscosities. The VOF model in ANSYS Fluent is capable of distinguishing and properly simulating the behavior of both substances within the same domain according to their unique physical properties.

  22. Avatar Of Braeden Reinger

    Braeden Reinger

    What are the final delivery items for this CFD simulation?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      The final delivery items for the ‘Mixing of Carbon Dioxide and Ethanol CFD Simulation’ project include detailed contour plots for temperature, pressure, velocity, and volume fraction for each phase at the last second of the simulation. Additionally, reports on the secondary flows formed during the mixing process and its effects on the blending of carbon dioxide and ethanol are also provided as part of the solution process outcomes.

  23. Avatar Of Zachary Heathcote Sr.

    Zachary Heathcote Sr.

    I appreciate the detailed explanation in the mixing simulation of carbon dioxide and ethanol. The results shown in the contours are quite insightful for understanding the interaction between these two substances. The time step of 0.5 seconds provided a crisp resolution over the 180-second analysis duration.

    • Avatar Of Mr Cfd Support

      MR CFD Support

      We’re thrilled to hear that you found the simulation details and resulting contours insightful! Understanding interactions between various substances is crucial for a multitude of industrial applications, and we’re glad our product could assist you in your analysis. Thank you for your compliments on the time-step resolution; precise simulation outcomes are what we strive for. If you have any more feedback or need further assistance, we’re always here to help.

  24. Avatar Of Izaiah Huel

    Izaiah Huel

    The step-by-step visuals on the mixing of carbon dioxide and ethanol made the concepts crystal clear. The balance between thorough explanation and readability is just perfect in this simulation tutorial.

    • Avatar Of Mr Cfd Support

      MR CFD Support

      We’re delighted to hear that our tutorial on the Mixing of Carbon Dioxide and Ethanol CFD Simulation was clear and helpful for you! Thank you for your positive feedback, and we truly appreciate the time you took to let us know. If you have any more questions or need further assistance, feel free to reach out!

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