Learning Forum

[badrul]

Hi all,

 

I am trying to simulate a flow out of the highlighted cylinder. The problem is there is no flow shown (figure 1) unless I change the diameter to a larger size (figure 2). Seems like the solver tends to ignore any small geometry. How do I prevent this and make sure to get the second result with the first geometry?

 

Thank you!

[Charudatta Bandgar]

Hello Badrul ,

 

Discovery LIVE works on the graphic card capabilities, it adjusts the available fidelity range (minimum and maximum) to keep a fine balance between performance and level of detail. This means that depending on the available graphics memory and computational resources, the limit on what Discovery Live is able to resolve geometrically changes.

To find what minimum feature-length can be captured, please go through this video explanation. 

How do I prevent this and make sure to get the second result with the first geometry?

 If you are working with the highest fidelity, and if Discovery LIVE still ignores the features, there are two things you can do (which is also explained in detail in this post),

1. Get a larger graphics card (more memory and faster clock speed) - This will allow you to simulate larger problems with more detail.
2. Simulate a smaller problem - Can you split the model into smaller regions and apply appropriate boundary conditions to those smaller regions?

If you are still facing any issue, I would then suggest you send me the archived file, so that I can investigate it at my end.

 

Regards,

Charudatta.

[badrul]

Hi  Charudatta Bandgar I have tried the second option by using a smaller enclosure and it is working! Thank you.

[Charudatta Bandgar]

Thanks for the update, Badrul .