Physics Help Forum Flow in pipe (fluid mechanics)

 Thermodynamics and Fluid Mechanics Thermodynamics and Fluid Mechanics Physics Help Forum

 May 6th 2016, 07:05 PM #1 Senior Member   Join Date: Jun 2014 Posts: 306 Flow in pipe (fluid mechanics) in this network of pipe , the author make the attempts to solve it using ( Q1 = Q2 + Q3) , so delta Q = Q1 -(Q2 +Q3) , the value of head of junction that he gt is 25.2 , with delta Q = (3x10^-3) ( not shown in the working) however, when i tried to solve it using ( Q1 + Q2 = Q3) , which means ( Q1 +Q2 - Q3 ) , thae ans that i gt is hj = 28 , with delta Q = 0.07 P/s : we have to find the delta Q = 0 for the ans so that water from inlet = water from outlet so , question has two ans depending on the flow of water ??? or i am wrong ? http://i.imgur.com/6flQiEl.png http://i.imgur.com/HgmiqYg.png http://i.imgur.com/1vOdsVC.png http://i.imgur.com/5TQE3AW.png http://i.imgur.com/tLVwDXk.png Attached Thumbnails
 May 6th 2016, 09:30 PM #2 Senior Member   Join Date: Jun 2014 Posts: 306 anyone can answer ?
 May 7th 2016, 01:16 AM #3 Senior Member   Join Date: Jun 2014 Posts: 306 bump bump bump

 Tags flow, fluid, mechanics, pipe

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