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Hydraulic conductivity in soil

  1. May 3, 2017 #1
    1. The problem statement, all variables and given/known data
    why there's no horizontal conductivity in this question ?

    2. Relevant equations


    3. The attempt at a solution
    IMO , there's also horizontal conducitivity in this question because of the water can also flow horizontally across layer A , B and also C .
     

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  3. May 4, 2017 #2
    What do you think the k's are?
     
  4. May 6, 2017 #3
    coefficient of permeability
     
  5. May 6, 2017 #4
    No. They are the hydraulic conductivites. Do you know the definition of hydraulic conductivity?
     
  6. May 29, 2017 #5
    i
    it is to measure the permeability . Why there's no horizontal hydraulic conductivity in the example above ?
     
  7. May 29, 2017 #6
    Because the flow is vertical, and the pressure is constant over all horizontal planes.
     
  8. May 29, 2017 #7
    do you mean the water cant flow horizontally thru different layer ? so there is no horizontal permeability ? Why ?
     
  9. May 30, 2017 #8
    There is horizontal permeability, but the flow is in the vertical direction (according to the problem description).
     
  10. May 30, 2017 #9
    Can you point out whoich part of the problem stated the flow is vertical ? The water can also flow in horizontal direction across different layer of soil A, B and C , right ?
     
  11. May 30, 2017 #10
    This is not the way I remember the problem. Maybe I'm thinking of a different problem. In this problem, the flow is purely horizontal, with no vertical component.
     
  12. May 30, 2017 #11
    Do you mean it's vertical flow? Not horizontal flow ?
     
  13. May 30, 2017 #12
    No. In the picture in the first post, the flow is horizontal.
     
  14. May 31, 2017 #13
    Since the flow is horizontal , why there's no horizontal permeability ?
     
  15. May 31, 2017 #14
    Can you point out which part show that the flow is horizontal ?
     
  16. May 31, 2017 #15
    The three layers in the figure are inside a tube which is obviously horizontal.
     
  17. May 31, 2017 #16
    The problem statement says that the tabulated values of hydraulic conductivity are in the direction of flow.
     
  18. May 31, 2017 #17
    why ? The water can flow both horizontally and vertically . Why there's only vertical permeability ?
     
  19. May 31, 2017 #18
    Previously , you pointed out that the flow is horizontal , if so , why there's no horizontal permeability in this question ?
     
  20. May 31, 2017 #19
    You are aware of the relationship between the permeability and the hydraulic conductivity, correct?
     
  21. May 31, 2017 #20
    yes, can you explain further ?
     
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