To estimate the frictional head loss, we use Darcy-Weisbach eq ( LV2 hy = f), where f is the friction factor. D2g Please select the most appropriate answer to get the friction factor f. Moody diagram and Sawmee-Jain eq can be used for both laminar and turbulent flows in pipes. Moody diagram and Sawmee-Jain formula can be used for both smooth and rough-walled pipe flows. While for 4x10³ < Re < 108 and 10-¹5

Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN:9781305635180
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Braja M. Das, Nagaratnam Sivakugan
Chapter7: Seepage
Section: Chapter Questions
Problem 7.1P
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To estimate the frictional head loss, we use Darcy-Weisbach eq (
LV2
hy = f), where f is the friction factor.
D2g
Please select the most appropriate answer to get the friction
factor f.
Moody diagram and Sawmee-Jain eq can be used for both laminar
and turbulent flows in pipes.
Moody diagram and Sawmee-Jain formula can be used for both
smooth and rough-walled pipe flows.
While for 4x10³ < Re < 108 and 10-¹5 <k/D < 2×10¹², the f values
from Sawmee-Jain eq differ less than 3% from those on the Moody
diagram, others vary widely, but still can be used for both laminar and
turbulent (smooth and rough-walled pipes).
O All the answers are correct.
Transcribed Image Text:To estimate the frictional head loss, we use Darcy-Weisbach eq ( LV2 hy = f), where f is the friction factor. D2g Please select the most appropriate answer to get the friction factor f. Moody diagram and Sawmee-Jain eq can be used for both laminar and turbulent flows in pipes. Moody diagram and Sawmee-Jain formula can be used for both smooth and rough-walled pipe flows. While for 4x10³ < Re < 108 and 10-¹5 <k/D < 2×10¹², the f values from Sawmee-Jain eq differ less than 3% from those on the Moody diagram, others vary widely, but still can be used for both laminar and turbulent (smooth and rough-walled pipes). O All the answers are correct.
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