Consider steady, incompressible, laminar flow of a Newtonian fluid in an infinitely long round pipe of diameter D or radius R = D/2 inclined at angle a. There is no applied pressure gradient (@P/x = 0). Instead, the fluid flows down the pipe due to gravity alone. We adopt the coordinate system shown, with x down the axis of the pipe. Derive an expression for the x- component of velocity u as a function of radius r and the other parameters of the problem. Calculate the volume flow rate and average axial velocity through the pipe. 102 α Pipe wall Fluid: p. R X

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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Consider steady, incompressible, laminar flow of a Newtonian fluid in an
infinitely long round pipe of diameter D or radius R = D/2 inclined at angle
a. There is no applied pressure gradient (@P/x = 0). Instead, the fluid
flows down the pipe due to gravity alone. We adopt the coordinate system
shown, with x down the axis of the pipe. Derive an expression for the x-
component of velocity u as a function of radius r and the other parameters
of the problem. Calculate the volume flow rate and average axial velocity
through the pipe.
10₂
α
Pipe wall
Fluid: p. p
R
Transcribed Image Text:Consider steady, incompressible, laminar flow of a Newtonian fluid in an infinitely long round pipe of diameter D or radius R = D/2 inclined at angle a. There is no applied pressure gradient (@P/x = 0). Instead, the fluid flows down the pipe due to gravity alone. We adopt the coordinate system shown, with x down the axis of the pipe. Derive an expression for the x- component of velocity u as a function of radius r and the other parameters of the problem. Calculate the volume flow rate and average axial velocity through the pipe. 10₂ α Pipe wall Fluid: p. p R
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