6. Use AIR/W to model a wide range of air-groundwater interaction problems.
GeoStudio 2007 introduces AIR/W, a brand new product to solve for air flow in response to thermal or air
pressure gradients. AIR/W couples air and water pressure with temperature so you can
consider the true (Ua-Uw) matric suction phenomenon.

This example demonstrates simultaneous air and water flow in a tunneling project.