5_02 - Problem 5.2 Force on firemans hose We are interested...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Problem 5.2 Force on fireman’s hose We are interested in how the shape of the nozzle and the direction of the stream affects the force required to hold a fireman’s hose. The sketch shows a test rig where a hose- nozzle combination is held firmly by a support. The bellows transmits no force to the parts mounted on the support (the hose to the left of it is supported separately). Water is supplied at a volume flow rate Q (m 3 s -1 )via a horizontal hose of radius R 1 , the flow within being in the x-direction, to a nozzle with a smaller exit radius R 2 and an outward normal vector v n 2 = v i cos + v j sin . The coordinates are indicated in the figure. The nozzle exit plane is at an elevation h relative to the horizontal supply hose, where y=0. The density of water is , and the atmospheric pressure is p a . The weight of material (water, hose, and nozzle) between the bellows and the nozzle’s exit plane is W . (a) Assuming that the flow between stations 1 and 2 is incompressible and inviscid,
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/27/2012 for the course MECHANICAL 2.25 taught by Professor Garethmckinley during the Fall '05 term at MIT.

Page1 / 2

5_02 - Problem 5.2 Force on firemans hose We are interested...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online