Which type of well uses the principle of superposition in space to solve linear boundary problems by adding mirrored infinite solutions?

• A. Image Wells
• B. Flood Wells
• C. Quasi-steady Wells
• D. Infinite-Source Wells

Answer: (A)

The concept is the method of images in groundwater flow: using the linearity of the system to satisfy a boundary by adding mirrored sources. In a pumping problem, the effect of the real well can be paired with an image well placed on the opposite side of a boundary (like an impermeable boundary) so that the combined head change respects that boundary. Because boundaries can require repeated reflections, you end up with an infinite series of image wells, all contributing to the solution. That’s why image wells are the described type. The other terms don’t represent this mirrored, superposition-based approach.