[Lukas]

I needn´t the heat exchanger tool, because I´m not interested in heat transfer. For me is only the velocity relevant for analyzing the flow induced tube vibration.

[tH3f0rC3]

Originally Posted by Lukas

I calculated the pressure drop with equations from the VDI heat atlas.
The porous inertial resistance can be calculated like this:

Pi = dp/dl * 1/v²

Hi Lucas,

where did you find this equation in the VDI heat atlas? Maybe you can give me the name of the section e.g. Fa3

Best Regards,
tH3f0rC3