#### (Solved): Exercise 3.7.1 Water Flows Through A Sand Body That Has Been Placed Between Two Screens In The Appar ...

Exercise 3.7.1 Water flows through a sand body that has been placed between two screens in the apparatus shown in figure 3.7.1. The water levels to the left and right in Figure E3.7.1 are kept at constant levels. The screens keep the sand in place , but allow water to pass. z1=30cm,z2=60cm,l=40cm, pl/pg=90cm,p2/pg=40cm, A=600cm^2.

The hydraulic conductivity K of the sand is 10m day^-1, the effective porosity is 0.4. Hydraulic conductivity of the material can be defined as the ability of the fluid to pass through the pores and fractured rocks(sciencedirect.com)

Darcy's Law is Q=KiA

A. Draw the direction of the water flow,

B. Determine the volume flux Q in the sand body.,(I know the answer, just not how to get it (0.24 m^3 day^-1), distance of flow 50cm )

C. Determine the travel time of a water particle that flows through the sand body.( should come to 1 hr 12 minutes)

placed between rlevels to the left Exercise 3.7.1 Water flows through a sand body that has been placed be two screens in the apparatus shown in Figure E3.7.1. The water levels to the and right in Figure E3.7.1 are kept at constant levels. The screens keep the sa place, but allow water to pass. 3. = 30 cm z = 60 cm P = 90 cm pg P2 = 40 cm Pg A = 600 cm of the sand is 10 m day; the effective porosity n.is 1 = 40 cm The hydraulic conductivity 0.4. 22 Dat Figure E3.7.1 a. Draw the direction of water flow, b. Determine the volume flux Q in the sand body. c. Determine the travel time of a water particle that flowel that flows through the sand body.