Recent content by Damascenone

Yes I had been this far already but then I got confused by the dp/dx term, thinking I have to solve a differential equation but there is none to solve... Entering the formulas in a little spreadsheet now calculates me the flow rates as I vary the temperature. Great! Thanks again for your kind...

Thanks a lot Chet, I try to put the puzzle together... Considering, for the moment being, one capillary only, I get p1*Q1=p2*Q2 for the inlet and outlet. The viscosity of helium I was able to find, dp might be replaced by p2-p1, dx might be the length of my capillary, but then I run into trouble...

Hi Chet, I would like to say: I know a bit, but to be honest, I'm a chemist and my knowledge in fluid dynamics is zero! Markus

Can anyone help on this problem encountered in gas chromatography: Two helium incoming gas lines A and B are connected together via a cross-shaped connector to two outlets C and D. All in and out lines are capillaries with diametre in the 0.1-1 mm range and lengths in the 10s of cm to 10s of...