Analysis of water flow under trickle irrigation. I. Theory and numerical solution

Etimating the size of the ponded surface area is a major source of error in modeling water movement under trickle irrigation. After reviewing available approaches and models for simulating water flow under trickle irrigation, we present a new numerical solution of the governing partial differential equations that improves the prediction of the size of the ponded area at the soil surface. A common formulation could be used for both Cartesian and axicylindrical flow geometries (…)