Learning Forum

[tjmay]

Hello everyone,

I have been trying to use the "Intake Fan" boundary condition to model a fan in an enclosure system. I have found a fan curve for the type of fan that I will be using for the system and used a piecewise-linear linear function to input the pressure jump and velocity relationship into the intake fan condition.

One thing I noticed is that there is nothing to set what rate the fan will be running at. One reason I wanted to run these simulations was to see what would happen if the fan ran at different flow rates. I started looking through different manuals and user guides and found the this section, seen in the attached image, which seems to be what I need to use. The problem is I can find the "Limit Polynomial Velocity Range" option anywhere.

I'm using ANSYS 2019 R3 and the manual seems to be using an older version. I'm not sure if it is because of the new version or that I just can't find the option, but does anyone know how to use this option? Also is this the best way to achieve what I am trying to do with testing different flow rates?

Here is the link that of the user guide I was following: https://www.afs.enea.it/project/neptunius/docs/fluent/html/ug/node254.htm

Below is an image of the section that I mentioned before.

[Karthik Remella]

Could you please take a look at Section '7.4.19.3.2.4: Example - Determining the pressure jump function' in the following link?

https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v202/en/flu_ug/flu_ug_sec_bc_fan.html?q=fan

If you are looking for instructions on how to access the content from this link, please look here.

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

Thank you.

Best Regards,

Karthik