Publication Details

Reference Category Journals
DOI / URL link
Title (Primary) Modeling soil-coupled water uptake of multiple root systems with automatic time stepping
Author Kalbacher, T.; Schneider, C.L.; Wang, W.; Hildebrandt, A.; Attinger, S.; Kolditz, O.;
Journal Vadose Zone Journal
Year 2011
Department CHS; ENVINF;
Volume 10
Issue 2
Language englisch;
Keywords HPC, high performance computi ng; MPI, message passing interfaces; ODE, ordinary diff erenti
Abstract

Numerical modeling of interacting flow processes between roots and the soil is essential for understanding the influence of different root geometries and types on the hydrosystem. The coupling of two software tools enables the analysis of water uptake of plant communities, one modeling the water flow along a network of resistances from the bulk soil along radial soil disks toward the root system up to the root collar, while the second tool is covering the nonlinear dynamics of water flow within soil by a three-dimensional Richards model. Appropriate methods for geometric coupling, fast coupled parameter exchange, and coordinated parallelization have been developed to ensure an efficient functionality. An adaptive time stepping with automatic control guarantees the stability of the solution of nonlinear problems.

ID 11171
Persistent UFZ Identifier http://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=11171
Kalbacher, T., Schneider, C.L., Wang, W., Hildebrandt, A., Attinger, S., Kolditz, O. (2011):
Modeling soil-coupled water uptake of multiple root systems with automatic time stepping
Vadose Zone J. 10 (2), 727 - 735