Work

Thermal convection of viscous fluids in a faulted system: 3D benchmark for numerical codes

Year: 2017

Type: conference-paper

Abstract: We propose a new benchmark for the simulation of thermal convection in a 3D faulted system. Linear stability analysis is adopted to estimate the critical viscous-dependent Rayleigh number. These results are used to quantify the reliability of OpenGeoSys-5, Golem and FEFLOW simulators in accounting for the onset conditions and in predicting the long-term behavior of convective flow patterns. By comparing the analytical and numerical results, we can conclude that the proposed methodology and Rayleigh expressions can be applied as benchmark case for any numerical study involving coupled hydrothermal fluid flow in fault zones.

Source: Energy Procedia

DOI: 10.1016/j.egypro.2017.08.204

Authors: Fabien Magri, Mauro Cacace, Thomas Fischer, Olaf Kolditz, Wenqing Wang, Norihiro Watanabe

Institutions: Helmholtz Centre for Environmental Research, Freie Universität Berlin, GFZ Helmholtz Centre for Geosciences

Language: English

Topic: Groundwater flow and contamination studies

Subfield: Environmental Engineering

Field: Environmental Science

Domain: Physical Sciences

Open Access status: diamond

Funder: Deutsche Forschungsgemeinschaft

Awards: G5692915422, G8233869898