Water flows in a steel pipe (e = 0.00020 feet) at a flow Q = 12.5 cfs. The diameter of the pipe is D = 18 inchesand the length of the pipe is L = 2,500 feet between section 1 and section 2. The elevation at section 1 is z =100 feet above the datum. The elevation at section 2 is z2 = 75 feet above the datum. The temperature of thewater is 70°F. The kinematic viscosity of the water is 1.06 x 10° ft/s. The pressure at section 1 is p1 = 90 psig(pounds per square inch gage).a) Determine the velocity v in feet per second (fps).b) Determine the Reynolds number Re.c) Classify the flow based on the Reynolds number Re.d) Determine the Darcy-Weisbach friction factor f.e) Determine the friction head loss hfäic in feet in the pipe between section 1 and section 2.f) Determine the pressure p2 in psiq at section 2.

Given that: Flow, Q=12.5 cfsDiameter of pipe, D=18 inLength of pipe, L=2500…

Water flows in a steel pipe (ɛ = 0.00020 feet) at a flow Q = 12.5 cfs. The diameter of the pipe is D= 18 inches and the length of the pipe is L = 2,500 feet between section 1 and section 2. The elevation at section 1 is z; = 100 feet above the datum. The elevation at section 2 is zą = 75 feet above the datum. The temperature of the water is 70°F. The kinematic viscosity of the water is 1.06 x 10 ft/s. The pressure at section 1 is pi = 90 psig (pounds per square inch gage). a) Determine the velocity v in feet per second (fps). b) Determine the Reynolds number Re. c) Classify the flow based on the Reynolds number Re. d) Determine the Darcy-Weisbach friction factor f. e) Determine the friction head loss hjaic in feet in the pipe between section 1 and section 2. f) Determine the pressure pz in psiq at section 2.

Water flows in a steel pipe (ɛ = 0.00020 feet) at a flow Q = 12.5 cfs. The diameter of the pipe is D= 18 inches and the length of the pipe is L = 2,500 feet between section 1 and section 2. The elevation at section 1 is z; = 100 feet above the datum. The elevation at section 2 is zą = 75 feet above the datum. The temperature of the water is 70°F. The kinematic viscosity of the water is 1.06 x 10 ft/s. The pressure at section 1 is pi = 90 psig (pounds per square inch gage). a) Determine the velocity v in feet per second (fps). b) Determine the Reynolds number Re. c) Classify the flow based on the Reynolds number Re. d) Determine the Darcy-Weisbach friction factor f. e) Determine the friction head loss hjaic in feet in the pipe between section 1 and section 2. f) Determine the pressure pz in psiq at section 2.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Pressurized pipe flow

A 15-kilometer-long pipe with a pipe diameter of one meter transports water at a speed of one meter per second. The pipe has a friction coefficient of 0.005. Calculate the frictional head loss?

Question

Water flows in a steel pipe (e = 0.00020 feet) at a flow Q = 12.5 cfs. The diameter of the pipe is D = 18 inches
and the length of the pipe is L = 2,500 feet between section 1 and section 2. The elevation at section 1 is z =
100 feet above the datum. The elevation at section 2 is z2 = 75 feet above the datum. The temperature of the
water is 70°F. The kinematic viscosity of the water is 1.06 x 10° ft/s. The pressure at section 1 is p1 = 90 psig
(pounds per square inch gage).
a) Determine the velocity v in feet per second (fps).
b) Determine the Reynolds number Re.
c) Classify the flow based on the Reynolds number Re.
d) Determine the Darcy-Weisbach friction factor f.
e) Determine the friction head loss hfäic in feet in the pipe between section 1 and section 2.
f) Determine the pressure p2 in psiq at section 2.

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