InterPore2021

A (dual) network model for heat transfer in porous media

1 Jun 2021, 20:00

1h

Poster (+) Presentation (MS17) Thermal Processes, Thermal Coupling and Thermal Properties of Porous Media: modeling and experiments at different scales Poster +

Speaker

Kilian Weishaupt (University of Stuttgart)

Description

We present a new concept for modelling single-phase flow and energy transport in porous media including conditions under which local thermal equilibrium cannot be assumed. A dual network model is introduced based on a recently developed algorithm to represent both the pore space and the solid grain matrix in a porous medium by interconnected networks.

Heat and mass transfer are considered simultaneously, allowing to naturally model scenarios with heterogeneous temperature distributions in both void space and solid matrix. We suggest a discretisation of mass, momentum, and energy balance equations using a dual network representation.

The new approach is compared with 3D conjugate heat transfer simulations
for both conduction- and convection-dominated scenarios.