# Check 4 - Uniform flow in an unconfined aquifer with uniform recharge

##### Checks unconfined domain, constant head line boundary, normal flux line boundary, uniform recharge, 3D pathlines

This is the same as check 2, but with an unconfined aquifer instead of a confined one. The base of the aquifer is at 0.

At the left edge of the model, the domain discharge is about 0.93. The recharge adds 0.50 as the pathline crosses the model from left to right, so the total discharge at the right side is 1.43.

The fractional discharge above the pathline at the right side of the model is 0.5/1.43 = 0.35, which puts it at about elevation 6.5.

Checking the specific discharge, average linear velocity and domain discharge anywhere in the model confirms consistency with Darcy’s Law.