Abstract

Climate change is already causing considerable concerns, including resultant flooding, structural damage to buildings, amongst other problematic situations. One way of reducing the amount of carbon dioxide released into the atmosphere is to store it deep underground, where it is in a supercritical (liquid-like) state and can spread in a conduit capped by an impermeable surface. Quite some work has been carried out on this idea at Slipner off Norway and during the Ottway project in Victoria, Australia, as well as elsewhere around the world. Theoretrical valuations of such flows have so far only really considered how this liquid-like material is sequestered in layers with opaque upper and lower horizontal boundaries. We will present new results of fluid flow over topographically varying boundaries, incorporating uniform drainage and localized leakage.