Question

Water moves through a pipe at 6 m/s under an absolute pressure of 330 kPa. The pipe narrows to one half of its original diameter. What is the absolute pressure in the narrow part of the pipe?

Water moves through a pipe at 6 m/s under an absolute pressure of 330 kPa. The pipe narrows to one half of its original diameter. What is the absolute pressure in the narrow part of the pipe? Pressure = Number Pascals

Answer 1

Bernaullis formula - Po U² C P2 t +2₂ © V,? +2= + 7 zg २ zg P: pressure Ni unit weight water P = 330 kPa. V, = 6 m/s 2,= 22 of Ni velocity 2: elevation dola 20 I do/ 2 , As a leading A = d.² 4 Al A : Discharge ENXA So V, A, = V2 x A2 6x AL V2x Ai 4 V₂ = 24 m/s

So ให equation -ion 0 8 41 200x16 9:8IX ( - + + 24 8 2x9 :31 9:/x/ 2x9.8) Pa = 60 kf A หM