Parametric CFD analysis of Nozzle flow

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Parametric CFD analysis of Nozzle flow | Ansys CFX

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Learn CAE

Күн бұрын

Пікірлер: 20

@syedmasoodbukhari2550 13 күн бұрын

Mach Number increase in the divergent portion of CD nozzle. How come mach number is highest in the throat? Is there some mistake?

@Dcassimatis Ай бұрын

If anyone is having trouble getting CFX to work,... you'll need to run CFX as administrator first, than map the file path for the workbench directory, using the folder ICON in the upper right corner, in my case it's R1 2024,... while CFX is running, start workbench and open the folder for the workbench project for this tutorial and it will load right up,... otherwise you get the error shown earlier.

@sagar11222 3 жыл бұрын

In 13:55 when you enter pressure value below, it appears above as well after hitting apply. In my cfx pre it does not appear above. Do you know why???fyi: I use ansys 16.

@chinmayperi3132 Жыл бұрын

when i am trying to see how heat flux changes it is showing nothing, min and max values are unknown

@thoufiqthoufiq-rg5it Жыл бұрын

Hi please can you do step by step exhaust fan simulation and Fan rotation animation for air

@shravanmishra4429 2 жыл бұрын

Many many thanks. What is NPR(nozzle pressure ratio)? and What is NPR in this simulation?

@LearnCAE 2 жыл бұрын

Hi, I don't remember the NPR for this case. The main objective was to automate the process.

@arnavkumar8388 Жыл бұрын

how is the flow greater at the throat than its upstream value in supersonic reginme??

@LearnCAE Жыл бұрын

By 'flow', do you mean mass flow or pressure or velocity, or any other parameter?

@jamattos9957 3 жыл бұрын

Amazing video!! Is it possible to create a parametric CFD analysis using ANSYS bladegen? I mean, inputting different geometries from Bladegen? Or turbogrid... Thanks a lot for the information!

@LearnCAE 3 жыл бұрын

Hi, it is possible. But when it comes to blade design, you cannot easily parameterize the design trials. It is recommended to check and do it manually.

@melanotictus 4 жыл бұрын

thanks for very informative video. By the way, could you make a video on how to produce a chart in CFD-post that have multiple design point. Example, pressure across the nozzle (or some piping) at multiple design point (let say design point 1, 2 and 3). Thank you

@LearnCAE 4 жыл бұрын

Thanks for your comments. I will post a video regarding multiple design points and let you know. By the way, do you mean multiple back pressures or post processing data at different axial locations for same back pressure.

@melanotictus 4 жыл бұрын

@@LearnCAE what I mean was, let say I have input variable which is inlet diameter, So my design point are inlet diameter 1, inlet diameter 2, and inlet diameter 3. In parametric design I can find the corresponding outlet pressure for those three cases from the parametric feature. However, I also want to find the pressure along the pipe/nozzle. How can I produce a XY plot, a graph of pressure vs length of pipe for those 3 cases (3 input diameter) simultaneously. For now, in post-cfd i can only produce the xy plot/graph of single line, for design point 1 (current) only. How do I do to get the result of design point 2 and 3 on the same plot. thank you.

@LearnCAE 4 жыл бұрын

@@melanotictus To check all three results in single plot, I think you need to open all three result files in post processor and plot. If not, you can extract the data for all three cases and plot separately in excel or matlab or any other tool.

@deepakdennis5824 2 жыл бұрын

From which journal u r taking the boundary conditions?

@LearnCAE 2 жыл бұрын

Hi, neither the model nor boundary conditions are taken from any journal. Only standard pressure boundary conditions are provided just to demonstrate parametric analysis steps.