An oil with p=900 kg/m and v0.0002 m'/s flows upward through an inclined pipe as shown in Fig. E6.4. The pressure and elevation are known at sections 1 and 2, 10 m apart. Assuming %3D d=6 cm 10 m P2 = 250,000 Pa 17 40 = 350,000 Pa, z, = 0 steady laminar flow, (a) verify that the flow is up, (b) compute h, between I and 2, and compute (c) Q. (d) V, and (e) Re Is the flow really laminar? Tpgd'hy 128L %3D 2,431,G0 6610 &

Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN:9781305635180
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Braja M. Das, Nagaratnam Sivakugan
Chapter6: Hydraulic Conductivity
Section: Chapter Questions
Problem 6.14P
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An oil with p=900 kg/m² and v==0.0002 m/s flows upward through an inclined pipe as shown
in Fig. E6.4. The pressure and elevation are known at sections 1 and 2, 10 m apart. Assuming
d=6 cm
10 m
P,= 250,000 Pa
40
P,= 350,000 Pa, z, =0
steady laminar flow, (a) verify that the flow is up, (b) compute h, between I and 2, and compute
(c) Q. (d) V, and (e) Re Is the flow really laminar?
mpgd'h
Q =
128µL
3,431,600
66 10 &
Density of Air p = 1.205 kg/m
364 S444 D176= 15 14 0 6 +Go
Coefficient of viscosity for air = 1.80 x 10-5
he 151 355m
Force of gravity 9.807
Density of waterp 998 kg/m?
%3D
Coefficient of viscosity (water) u = 0.001 kg/(m.s)
For gasoline at 20°C, from the Table p= 680 kg/m³,y = pg, g =9.81
Transcribed Image Text:An oil with p=900 kg/m² and v==0.0002 m/s flows upward through an inclined pipe as shown in Fig. E6.4. The pressure and elevation are known at sections 1 and 2, 10 m apart. Assuming d=6 cm 10 m P,= 250,000 Pa 40 P,= 350,000 Pa, z, =0 steady laminar flow, (a) verify that the flow is up, (b) compute h, between I and 2, and compute (c) Q. (d) V, and (e) Re Is the flow really laminar? mpgd'h Q = 128µL 3,431,600 66 10 & Density of Air p = 1.205 kg/m 364 S444 D176= 15 14 0 6 +Go Coefficient of viscosity for air = 1.80 x 10-5 he 151 355m Force of gravity 9.807 Density of waterp 998 kg/m? %3D Coefficient of viscosity (water) u = 0.001 kg/(m.s) For gasoline at 20°C, from the Table p= 680 kg/m³,y = pg, g =9.81
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