Learning Forum

[asustark700]

Hey Guys!
How are you doing?

Well, I've been designing an impeller,
Kindly consider me as a beginner throughout the conversation.

Now I am trying to generate a performance map {nominal mass flow rate v/s pressure ratio} of the impeller to know the operational range. 
However, I've gone through the Ansys documentation & YouTube but found no tutorial. 

If there are already some tutorials, please provide me with any references.
In case of unavailability, we can continue with the threat. 
But I don't have any clue how to start.

It would be warmly appreciated if any replies.

Sending positive vibes!
cheap person 😁

[Federico Alzamora Previtali]

Hi!

this example is not specific to an impeller case but shows how to conduct a parametric study in Fluent and create relevant reports for each design point. Chapter 9: Performing Parametric Analyses in Ansys Fluent

I believe this could at least get you started!

[asustark700]

Thank you so much Frederico for replying to me!

After watching this tutorial, I can say "This can get me started!"

but I have some doubts:

1. His input parameters are {inlet_temp and inlet_velo}, output parameter is {outlet_temp}, which is not time dependent.
   In my case, My input parameters are {speed} and output parameters are {pressure ratio, mass flow rate}, which is time dependent.
   
   POV: If I am wrong anywhere please correct me and if there is another method please tell me.
   
   
2. My analysis is going to be transient. I cannot afford high computational costs. so how can I reduce it?
   
   POV:  I run the steady simulation for 3 hours with 1000 iterations and transient simulation for one and a half hours with 200 time steps with 5 sub-iterations.

Sending positive vibes... Again!
cheap person 😁

[Federico Alzamora Previtali]

Since you create a new post, let's continue our conversation on that thread: How to reduce computational cost or time. (ansys.com)