These experiments were completed in a mobile bed of 1.8 mm coarse sand with migrating bedforms.
Today, there are many manufacturers who make fold-up or mobile beds, with platforms or European-style wood-slat bases.
Several different natural phenomena can be studied in the framework of free-surface, two-phase flows over mobile bed.
The training and testing data are selected from original experiments, performed in a hydraulic flume using a sand mobile bed.
The results show that the DORA model can reproduce the bed profiles over time except the local scouring at the transition between fixed and mobile bed.
We report the results of a series of physical experiments in which solute-driven gravity currents were run through pre-formed sinuous channels containing mobile beds.
The papers review the scaling and design of mobile bed tests, the role and limits of conventional and new instrumentation and the extrapolation to full scale.
The experiments are somewhat novel in that most mobile bed models have vertical exaggeration, whereas in these experiments exact geometric similitude of channel dimensions was maintained.
Following this idea, the paper will revise the procedure to design reduced scale mobile bed tests, including the criteria for scaling and those for selecting an experimental facility.
However, further development of the Lagrangian Boundary Layer Model is required in order to include bore-generated turbulence and to account for variable roughness and mobile beds.
Developed for and funded by the annual State fair of Texas, the project consists of mobile beds in car parks and a hydroponic greenhouse which allow plants to grow without soil.
