Coupling of Porous Media Flow with Pipe Flow via Dual-Continuum Strategy


Doğan M. O.

DFG FG 581 Natural Slopes: Coupling of Flow and Deformation Processes for Modeling the Movement of Natural Slopes, Karlsruhe, Germany, 27 - 28 March 2008, pp.12

  • Publication Type: Conference Paper / Summary Text
  • City: Karlsruhe
  • Country: Germany
  • Page Numbers: pp.12
  • Middle East Technical University Affiliated: No

Abstract

Many flow problems in environmental, technical and biological systems are characterized by a distinct interaction between a flow region in porous medium and a pipe flow region in quasi-one-dimensional hollow structures. Examples for such systems are (i)mines: Methane released from unmined coal seams migrates through the porous rocks, but also through tunnels and shafts in the mine. (ii) Landslides: A sudden water infiltration through macropores may trigger landslides. (iii)Polymer electrolyte membrane fuel cells: The supply of reactive gases through free-flow channels into the porous diffusion layers interacts strongly with the evacuation process of the water, which is formed at the cathode reaction layer and flows from the porous diffusion layers into the free-flow channels. (iv) Cancer therapy: Therapeutic agents are delivered via the blood vessels into the tissue, targeting the tumor cells. In this work a dual-continuum strategy, for the simulation of coupled porous media flow with lower-dimensional pipe flow will be presented. For the numerical implementation a special grid called 1D pipe network grid in a 3D porous grid is developed.