Multiscale modelling of physical processes along water-soil interface

The research proposal is focused on erosion- , transport- and sedimentation processes at water-soil interface, especially at channel beds and embankment slopes due to hydrodynamic effects of flow and waves as well as the effect of under-water construction work. It is of fundamental interest to know the maximum stable slope angle both on short and long term. This is of interest for embankment slopes and ground construction work on-shore as well as off-shore. Based on experimental, theoretical and numerical investigation a method for prediction of maximum short and long term stable slope angle will be developed. To date these predictions are made on empirical basis (1:3 to 1:10), which can lead to either unstable slopes or excessive use of area and resources. The numerical modelling of above processes will be based on multiple scales and the numerical method of coupled CFD-DEM simulations will be used. A consortium of research groups from Germany and Austria under the frame of the D-A-CH lead agency program will be formed. The research partner in Germany will be the Institut für Geotechnik und Baubetrieb (B-5) at the Technischen Universität Hamburg-Harburg (TUHH), represented by Prof. Dr.-Ing. Jürgen Grabe. During preliminary cooperation between the research groups the open source Software CFDEMcoupling, developed by DCS, was successfully applied and further work packages were defined. The research proposal will be submitted to the DFG, as the initiative of the work was started by TUHH and the TUHH will require higher financial resources to accomplish the desired tasks.

No additional funding sources recorded.