Show, that the velocity in the small tube is twice as big as the velocity in big tube.
Refference: http://prntscr.com/25cf9k

I thought of solving for v_1 and v_2, but then i'll just end up with 2 expression for the speed in the small and big tube: http://prntscr.com/25cfsj

Question

Show, that the velocity in the small tube is twice as big as the velocity in big tube.
Refference: http://prntscr.com/25cf9k

I thought of solving for v_1 and v_2, but then i'll just end up with 2 expression for the speed in the small and big tube: http://prntscr.com/25cfsj

anonymous · Answer

This is what i mean with the big and small tube: http://prntscr.com/25cgtz

dan815 · Answer

the mass flow rate is constant so

dan815 · Answer

look at the difference between the cross sectional area at start and bottom