Features
- two overlapping continua:
- the conduit system
- the fissured system
- different aquifer parameter for both continua
- changing fracture-matrix interactions
The
Double
Continuum Model Approach
The Flow Model
- solving of two coupled differential equations
- linear exchange term; the exchange rate is a function of specific exchange coefficient and head gradient
Differential Equations
- three-dimensional model
- free water surface in both continua
- simulation of transient flow processes
Example:
Piezometric Heads in a Double Continuum Model
The Transport Model
- solving of two coupled differential equations
- consideration of advective transport between fractured medium and matrix
- consideration of sublocal fracture-matrix interaction
- intrusion processes into the matrix system were realized with
- the continua were divided into subsystems with dynamic volumes
The
Double
Continuum Model Concept