[Spaune]

Hello guys. I'm creating 2D simulation of air flow around cylinder and to complete the task i need to monitor the Nusselt number on some circular arc of cylinder region, but i didn't find it in derived parts. How can i create curve instead of just line probe?

[me3840]

This is best done by creating the surface you want to monitor in the mesh. Just split the cylinder into the different parts you want to monitor and use a report to find Nu.

[Spaune]

Originally Posted by me3840

This is best done by creating the surface you want to monitor in the mesh. Just split the cylinder into the different parts you want to monitor and use a report to find Nu.

I thought about it, but decided that there must be a faster way. Thank you anyway.

[me3840]

The only other way would be to use a threshold of the surface in a report or to split the surface by function using a cylindrical coordinate system. But for a 2D simulation splitting the surface will only take a few minutes anyway, might as well just do it right.

I don't think it makes any sense to use a line probe for something like Nusselt number. Probe points don't have area, how would you calculate heat flux from that?

[Spaune]

Originally Posted by me3840

The only other way would be to use a threshold of the surface in a report or to split the surface by function using a cylindrical coordinate system. But for a 2D simulation splitting the surface will only take a few minutes anyway, might as well just do it right.

I don't think it makes any sense to use a line probe for something like Nusselt number. Probe points don't have area, how would you calculate heat flux from that?

Thank you, it is really takes just 2 minutes or even 1 to split xD