Learning Forum

[Mohannad Shahin]

Hello,

I am currently investigating a Double Pipe Heat Exchanger. I have developed two fully developed velocity profiles. Two separate fluent cases were made for each of the tube and the annulus. I have exported the outlet profile of each and want to apply them both at the same time in the actual test section in fluent (ex: boundary condition -> cold inlet-> profiles ->read-> cold profile.prof file). The actual test section consists of both domains together.

After running some tests, I realised that fluent keeps running the same profile for both domains. Also, I tried two read both at the same time, but fluent requires me to only select one.

How can I apply each velocity profile to each inlet of the heat exchanger?

I appreciate the advice in advance. Thank you.

[Karthik Remella]

Hello You should be able to do this. Instead of reading two different profiles files, you can merge the data into one single file. Here is how the format should be. Basically, profile 1, profile 2, ....
https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v211/en/flu_ug/flu_ug_sec_bcprof_format.html?q=profile
You should be able to read this file and select the correct velocity for each of your boundaries.
Karthik

[Mohannad Shahin]

Thank you for your response. I was able to save both profiles in one file by running a simulation of both hot and cold domain together. Then I was able to retrieve the profile components of each to be written to a single profile file.

[Karthik Remella]

Perfect! Glad it worked.
Karthik