Elliptical Nozzle With Inviscid Flow CFD Simulation

$80.00 Student Discount

In this project, Inviscid Flow in Elliptical Nozzle has been simulated, and the simulation results have been investigated.

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Elliptical Nozzle With Inviscid Flow, ANSYS Fluent CFD Simulation Training

The geometry of the solution consisted of an elliptical nozzle. In this project, the airflow will enter the convergent-divergent nozzle with 9800000 pascal and 3710-kelvin pressure. After passing the throat zone, the airflow will gain speed and lose its temperature as it passes through the diffuser. (Elliptical Nozzle With Inviscid Flow)

Geometry and mesh

The geometry of the fluid domain is designed in the Design Modeler, edited with SpaceClaim, and the computational grid is generated using ANSYS Meshing.

Mesh is created with ANSYS meshing software, and the mesh type is unstructured. The number of cells is 1246820.

Geometry 4Mesh

CFD Simulation

We consider several assumptions to simulate the present model:

  • The pressure-based solver method has been selected.
  • The simulation is steady.
  • The effect of gravity is ignored.

The following table represents a summary of the defining steps of the problem and its solution:


























Definition method



Fluent Database


Material name









Definition method



Fluent Database


Material name





Boundary conditions











Pressure inlet





9800000 pa





3710 k














Pressure outlet





101325 pa





300 k


Material Properties













Molecular weight


20 kg/kmol





Specific heat


2494 j/kg-k


Solution Methods



Pressure-velocity coupling









Spatial discretization











second-order upwind






second-order upwind





second-order upwind





Initialization method





Compute from




Elliptical Nozzle With Inviscid Flow results

The elliptical nozzle under consideration is carried out at an inlet pressure of 9800000 pa, temperature 3710, outlet pressure of 101325 pa, and temperature of 300 K using an inviscid model. The contours of pressure, temperature, velocity, Mach number, etc., are presented. The airflow loses its heat as clear from the contours after passing through the nozzle opening.


It increases its speed as the nozzle opening becomes more extensive than before the volume of passing air increases. Due to the constant air mass, its density decreases, so the velocity increases along with the nozzle according to the continuity law.


As can be seen from the Mach contour, the Mach number in the nozzle throat, according to the design mode, is equal to one and then increases in the nozzle’s divergent part.


  1. Avatar Of Miss Rossie Armstrong

    Miss Rossie Armstrong

    The training course was fierce and full of detailed information! The provided value for inlet pressure is particularly impressive – 9800000 pascals! How did you ensure that the simulation accurately captured the physics at such an extreme condition?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      We ensured accurate simulation at high-pressure conditions through meticulous setups including calibration of the initial conditions, appropriate selection of boundary conditions, and periodic monitoring of convergence criteria. Using inert (inviscid) flows and assuming the flow to be steady, we’re able to focus on the dominant physics that govern high pressure effectively.

  2. Avatar Of Claude Davis

    Claude Davis

    What a detailed explanation of the elliptical nozzle with inviscid flow simulation! This clarity in documentation makes it easier to understand the parameters and results of the CFD process. MR CFD’s comprehensive approach to simulations like these truly enhances the learning experience!

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your positive feedback! At MR CFD, we take pride in providing detailed and clear tutorials to support our customers’ learning journey. We’re glad to hear that our documentation has been helpful to you!

  3. Avatar Of Vernice Langosh

    Vernice Langosh

    After watching the simulation, I saw impressive pressure and temperature contours! The inverse relationship between the two through the nozzle was visualized perfectly. The training made understanding the compressible flow concepts in an elliptical nozzle very intuitive.

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your feedback! We’re delighted to hear our simulation helped you visualize and understand the compressible flow dynamics in an elliptical nozzle. It’s great to know our efforts to make complex concepts more accessible are appreciated. If you have any further questions or need more information, feel free to inquire. We’re here to ensure you receive the best learning experience possible!

  4. Avatar Of Coby Abernathy Md

    Coby Abernathy MD

    Can inviscid flow modeling accurately predict turbulence and boundary layer effects around complex geometries like an elliptical nozzle?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      In an inviscid flow model, boundary layer effects and turbulence are not accounted for since it assumes the fluid has no viscosity. An inviscid model is best used for idealized flow situations to predict bulk flow characteristics. To accurately predict complex flow behaviors, including turbulence and boundary layer phenomena, a viscous model would be necessary.

  5. Avatar Of Ms. Dana Parisian

    Ms. Dana Parisian

    I found the detailed presentation of the temperature and velocity contours particularly insightful. It was fascinating to see how the inviscid flow model was implemented so effectively in this project. Thank you for showcasing the cooling effect and speed increase through the elliptical nozzle design using convincing visual aids.

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your positive feedback on our Elliptical Nozzle With Inviscid Flow CFD simulation training. We are thrilled to hear that you found the visual representation of the simulation data helpful and insightful. It’s our goal to provide clear and comprehensive learning materials to aid understanding of complex concepts in fluid dynamics. We appreciate your review and hope our products continue to support your learning and interest in CFD.

  6. Avatar Of Demond Beatty

    Demond Beatty

    In the simulation results, have there been any plots or factor analyses concerning nozzle efficiency or comparisons with theoretical predictions?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      In this training product, there hasn’t been any specific mention of nozzle efficiency plots or a comparison with theoretical predictions. It focuses on the basic flow properties such as pressure, temperature, velocity, and Mach number within the nozzle. For a detailed efficiency analysis or theoretical comparisons, further post-processing and analysis beyond the provided scope would be required.

  7. Avatar Of Lucious Gaylord

    Lucious Gaylord

    The provided training enabled me to fully understand the concept of an inviscid flow within an elliptical nozzle. Just wanted to say that the quality of the CFD simulation training with such detailed parameters was top-notch and helped me a lot in my research!

    • Avatar Of Mr Cfd Support

      MR CFD Support

      We are thrilled to hear that our Elliptical Nozzle with Inviscid Flow CFD Simulation training has significantly contributed to your research! Thank you for your positive feedback and for choosing MR CFD Company. If there are further topics or simulations we can help you with, please let us know!

  8. Avatar Of Eloy Thiel

    Eloy Thiel

    The training for the elliptical nozzle with inviscid flow in ANSYS Fluent was amazing. It was thorough, and the step-by-step approach really helped enhance my understanding of nozzle flow dynamics.

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your positive feedback! We’re glad to hear that our training material was clear and informative, helping you grasp the complex concepts involved with nozzle flow in CFD simulations. Your understanding and mastery of the topic are paramount to us, and we’re thrilled we could contribute to your learning journey. If you ever have more questions or need further assistance, please don’t hesitate to ask!

  9. Avatar Of Derrick Mante

    Derrick Mante

    I enjoyed learning with the Elliptical Nozzle With Inviscid Flow CFD Simulation. The step-by-step results along with the visualization of pressure and temperature variations gave me real insights into the behavior of airflow through the nozzle. The detailed explanation of the accompanying changes in Mach number provided a clear understanding of supersonic flow phenomena. Great learning experience!

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your positive feedback! We’re thrilled to hear that our Elliptical Nozzle With Inviscid Flow CFD Simulation made the complex concepts accessible and understandable. It’s great to know that our efforts in providing detailed visualizations and clear explanations have helped enhance your learning experience. If you have any more questions or need further clarification, we’re always here to help. Keep enjoying our learning products!

  10. Avatar Of Dr. Kaitlyn Nolan

    Dr. Kaitlyn Nolan

    This course helped me understand supersonic flows much better. The simulations are detailed and the explanations for temperature and pressure changes are clear. Thanks for a great learning experience!

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you for your valuable feedback. We’re delighted to hear that our course on Elliptical Nozzle With Inviscid Flow CFD Simulation has enhanced your understanding of supersonic flows. We strive to provide clear and detailed explanations in our simulations, and we’re glad that you found them to be beneficial. If you have any more questions or need further assistance in your learning journey, feel free to contact us.

  11. Avatar Of Prof. Jarod Klocko

    Prof. Jarod Klocko

    The simulations settings and results sound robust, but how does the inviscid flow assumption affect the accuracy of the simulation regarding heat and fluid boundary layers?

    • Avatar Of Mr Cfd Support

      MR CFD Support

      The inviscid flow assumption disregards the effects of fluid viscosity, including boundary layer and shear stress considerations. This simplification is valid for flows where viscous effects are negligible, such as high-speed gas flow through a nozzle. As a result, the simulation focuses on predicting bulk flow characteristics like pressure, temperature, and velocity. The accuracy regarding boundary layers and heat transfer near walls may be lower, but for certain analyses and flow conditions, assuming inviscid flow can provide a good approximation of real behavior. By not accounting for viscosity, the computational resources and time can also be reduced.

  12. Avatar Of Elva Williamson

    Elva Williamson

    The concept of the inviscid flow model in this simulation was brilliantly executed. The thorough analysis and detailed elucidation of the airflow behavior through the nozzle provides critical insight into the dynamics of elliptical nozzles.

    • Avatar Of Mr Cfd Support

      MR CFD Support

      Thank you so much for your thoughtful review! We are thrilled to hear that you found the simulation and analysis both informative and valuable. Please let us know if there is anything else we can assist you with.

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