Finding the expanded depth of the uniform medium Filter medium sand grains (0.4mm in diameter) Ψ= 0.85 specific gravity= 2.65 depth of the bed=0.67m porosity=0.4 T=20 C μ= 1.002 .10-3N.s / m2 ρw=998 .2 kg / m3 Determine the required backwash velocity to expand the bed to a porosity of 0.7.
Finding the expanded depth of the uniform medium Filter medium sand grains (0.4mm in diameter) Ψ= 0.85 specific gravity= 2.65 depth of the bed=0.67m porosity=0.4 T=20 C μ= 1.002 .10-3N.s / m2 ρw=998 .2 kg / m3 Determine the required backwash velocity to expand the bed to a porosity of 0.7.
Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN:9781305970939
Author:Braja M. Das, Khaled Sobhan
Publisher:Braja M. Das, Khaled Sobhan
Chapter9: In Situ Stresses
Section: Chapter Questions
Problem 9.12P
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Finding the expanded depth of the uniform medium
Filter medium sand grains (0.4mm in diameter)
Ψ= 0.85
specific gravity= 2.65
depth of the bed=0.67m
porosity=0.4
T=20 C
μ= 1.002 .10-3N.s / m2
ρw=998 .2 kg / m3
Determine the required backwash velocity to expand the bed to a porosity of 0.7.
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