In this paper the unsteady process of constant pressure steam injection into an unsaturated porous medium (e.g. contaminated soil) is studied. Darcy's law, an overall mass balance and an energy balance at the steam front are applied to determine the position of the front. The solution, in closed form, reveals that the front position is proportional to ...t. Furthermore, an asymptotic analysis provides an approximate expression for the front position. This result quantifies the case of negligible conductive heat transfer.
|Title of host publication||Heat transfer 1994|
|Subtitle of host publication||proceedings of the Tenth International Heat Transfer Conference, Brighton, UK|
|Place of Publication||Rugby|
|Publisher||Institution of Chemical Engineers|
|Number of pages||6|
|Publication status||Published - 28 Jul 1994|