Problem s): Consider incompressible Newtonian fluid flow between parallel plates (Fig. 7) that are horizontal and a distance A apart. A constant pressure gradient is applied in the x-direction (dp/dx). The flow is fully developed laminar and steady. The plate width is denoted by B. a) Simplify the governing equations 4 Define the boundary conditions b) c) Determine the velocity profile IUST inte Fixed u(y) Fixed Umax

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Problem
s): Consider incompressible Newtonian fluid flow
between parallel plates (Fig. 7) that are horizontal and a distance A
apart. A constant pressure gradient is applied in the x-direction
(dp/dx). The flow is fully developed laminar and steady. The plate
width is denoted by B.
a) Simplify the governing equations
TILST
b)
Define the boundary conditions inte
c) Determine the velocity profile
Continuity Equation
f
+
P8x
P8y
ə
əx
Momentum Equations
au
2x²
Pgz
(pu) +
др
əx
+ μl
ap + M
ay
(pv) + 2- (07) -
=
əz
ap +
az
d²v
əx²
a²w
2
dx²
+
+
+
อิน
dy²
dv
dy²
a²w
ay²
+
+
a²u
ลิน
az
+
a²w
az²
ди
pl
at
dv
at
dw
at
+ u
+ 11
+ u
ди
əx
dv
əx
aw
əx
+ v
+ v
ди
+ v
ду
dv
ду
+ w
dw
+ w
du
Fig. 7: Flow between parallel plates with a constant
pressure gradient
az
du
+ w
əz
dw
az
Fixed
1 1 1
u(y)
Fixed
max
A
Transcribed Image Text:Problem s): Consider incompressible Newtonian fluid flow between parallel plates (Fig. 7) that are horizontal and a distance A apart. A constant pressure gradient is applied in the x-direction (dp/dx). The flow is fully developed laminar and steady. The plate width is denoted by B. a) Simplify the governing equations TILST b) Define the boundary conditions inte c) Determine the velocity profile Continuity Equation f + P8x P8y ə əx Momentum Equations au 2x² Pgz (pu) + др əx + μl ap + M ay (pv) + 2- (07) - = əz ap + az d²v əx² a²w 2 dx² + + + อิน dy² dv dy² a²w ay² + + a²u ลิน az + a²w az² ди pl at dv at dw at + u + 11 + u ди əx dv əx aw əx + v + v ди + v ду dv ду + w dw + w du Fig. 7: Flow between parallel plates with a constant pressure gradient az du + w əz dw az Fixed 1 1 1 u(y) Fixed max A
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