Consider variations on the base conditions explored in the discussion for this unit and illustrated below
For your convenience, I include the relevant expressions from the discussion:
Take out a paper an pencil and recalculate:
d
hmax
q to the river and
q to the canal
With each set of calculations, change one of the initial parameters to reflect each of the cases listed below. Be sure to check your answers and confirm to yourself that the answers make sense. This is a very important step. If you have generally always been a student, you may be used to waiting for the teacher to tell you if your answer is correct. This option is not available in the daily professional world. Please strive to find ways to check your answer using both:
common sense, and
alternative means of calculating the same value.
Some examples of checking the answer were given in the discussion section. It is important to anticipate what the answer will be. If there is a discrepancy between the expected answer and the calculated answer, continue to recalculate the values and reconsider your expectations until you decide which is correct. Sometimes our intuition is not correct and we must revise our thought. However, if we do not start with an idea of the result we are expecting, then we have nothing to gage our calculation against. This can be dangerous when your result is used to make decisions that affect human health and economy, and when a "key" is not available to confirm your result.
So, now proceed to recalculate:
d
hmax
q to the river and
q to the canal
for:
1. K = 1x10-4 m/day
2. K = 1x10+0 m/day
3. ET = 0.55 m/yr
4. W = 0 m/yr
Evaluate and check your results as you proceed.
View the answer key to evaluate you work.
KEY TO EXPLORING ADDITION OF RECHARGE TO DUPUIT UNCONFINED FLOW