Exercise 15

Considering the following photographs of Figure 38, repeated here for convenience:

Photographs from caves in Kentucky, USA
  1. Conceptually, how would the wetted perimeter and the effective hydraulic radius of each of the two conduit passages be calculated at the flow condition shown?
  2. Conceptually, how would the wetted perimeter and the effective hydraulic radius of each of the two conduit passages would be calculated if the passages were completely water filled?
  3. How might wetted perimeter, flow velocities, and discharge progressively change for the passage on the left as it fills with water during a storm?
  4. How might wetted perimeter, flow velocities, and discharge progressively change for the passage on the right as it fills with water during a storm? Hint: Keep the presence of the rectangular open channel, the broad rounded sediment banks, and the flattened elliptical shape of the upper half of the conduit in mind.

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Introduction to Karst Aquifers Copyright © 2022 by Eve L. Kuniansky, Charles J. Taylor, and Frederick Paillet. All Rights Reserved.