Learning Forum

[lafo226]

Hello, 

I would like to create a 2d mesh that is a fluid domain, and include a nozzle. Obviously the nozzle is solid while the fluid domain is liquid. What is the best way to mesh this? I have been trying to create two seperate surface bodies using add frozen, and then in meshing, mesh them seperately. However, I become lost when dealing with the connections and contact surfaces. Could someone help me out with either how to mesh this, or a resource on how the contact surfaces work?

 

Thanks!

[Kalyan Goparaju]

Hello, 

Is there a specific reason for including a solid mesh in your simulation? If you are not intending to perform any fluid-solid heat transfer studies, you don't have to include the solid. Here are a couple of public videos on nozzle fluid flow analysis Ansys software. 

https://www.youtube.com/watch?v=oY_3_c0rDiw

https://www.youtube.com/watch?v=P_jdywkbRQ4

Thanks, 

Kalyan

[lafo226]

Kalyan, 

The first video was very helpful and made a lot of sense. I had a follow up question. Once in fluent, how do I set regions to include different species? For example, I want the area near the nozzle to have all the species involved in the nozzle flow, but I would like there to also be ambient air in other regions of the domain. 

 

Thanks!

[Kalyan Goparaju]

Hello, 

Fluent has an operation called patch that you can use to do what you were describing. Here is a link to its description. 

https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v201/en/flu_ug/flu_ug_sec_patch.html?q=patch

Thank you,

Kalyan

[lafo226]

Kalyan, thanks for the quick reply. I am an academic student and cannot access that link. 

 

 

[Kalyan Goparaju]

Hello, 

Please see this post below on accessing help manuals when using the student version. 

/forum/forums/topic/how-to-access-the-ansys-online-help/

Thanks,

Kalyan