Centrifugal Pump Design with Ansys TurboSystem - Part 4
Hello, welcome to the final chapter of our series on building a centrifugal pump from scratch and analyzing it using ANSYS tools. In this session, we will work with our CFD solution.
Loading the CFD Solution
We begin by double-clicking on the results, which will bring up a tool called CFD Post. This tool automatically loads the solution file and provides an outline of our domain, showcasing our 1/8 sector rotating section and the stationary 360-degree volume around it.
Generating Instances
Let's proceed with generating instances:
- Click to create an instance transformation.
- Uncheck the default settings to create eight instances, forming a full circle.
- Hit Apply to visualize the instance transformation.
Analyzing Pressure Contours
Next, we examine the pressure contours on our blade:
- Apply the pressure contour to assess if the design is satisfactory.
- For presentation purposes, you may prefer to view all blades together by selecting the instancing transform and hitting Apply.
Adding Components
We can enhance the visualization by adding components:
- Add the shroud to the pressure field and create a plot.
- Include the volute surface and apply the changes.
Note: Adding eight instances of the volute may look strange, so you might want to uncheck this option and return to the blade view.
Exploring Streamlines
Another method to analyze the solution is by using streamlines:
- Start the streamlines from the outlet.
- Use both forward and backward streamlines to visualize the flow within the domain.
Observations and Conclusion
During the analysis, we observed a recirculation zone near the outlet, indicating a potential design flaw that requires further attention.
Thank you for your attention. This concludes our presentation.
Hello, welcome to the final chapter of our series of videos on centrifugal pump design with ANSYS TurboSystem - Part 4. So now we have our CFD solution. We're going to double click on the results. This will bring up a tool called CFD post and it will load automatically the solution file.
As you can see, it kind of gives the outline of our domain, of our 1-8 sector rotating section and the stationary 360 volume around it. I will show different tricks and tips for each of the software. Let's get started. So this is the time I shoot a video for the CFD post.
What I would like to show is generating instances. I'm going to click here and I want to create an instance, instancing transformation so that we can view multiple multiples of our 1-8 sector. We will see the 360. I'm going to uncheck this. We will have eight instances and it will be a full circle.
I'm going to hit apply. And now you can kind of see this instance transform created right here. Typically, what we may want to look at is a contour of pressures on our blade. So if I were to hit apply, this will give us. That's good.
We can take a look at if the design is satisfactory or not, get a feel for the pressure field. If we were to go under view and you see the apply instancing transform, I'm going to select the one I just created. When I hit apply, we're going to see, all the blades together.
If you want to see the blades together, you can see the blades together. That's good. For presentation purposes, you may want to do that. We can maybe then add the shroud to our pressure field. So maybe make a plot like this one. And maybe even, know, add our volute surface. Hit apply. That's good.
So that's good. So that's good. So that's good. Then, you know, what this would also do is add eight instances of the volute, which kind of looks strange. So what I'll do is I'll uncheck this. Go back to our blade view. Another way to look at the solution is maybe doing some streamlines.
I'll hit okay. I'm going to start the streamlines from the outlet and just, know, use these. Let's hit apply. By default, it just does the forward, but, know, we want to do forward and backward so that streamlines are kind of going back into the domain.
At this point, I think there's not a lot of comments going around the Sunnyfield Internet and things like this, so even us just vet to choose. And so, I've just ticked it back on. So now three and a half inches, the volute is typical.
And I'm not sure of rotating flow which would make things confusing. What I do notice is this recirculation zone near the outlet which indicates maybe we do have a poor design and we should be working further on our design. And that pretty much concludes our presentation. Thanks for your attention.
Thank you.
