EXPERIMENTAL OBSERVATION DATASET AND PROCESSED DATA FOR UNSATURATED POROUS MEDIA FLOWS

A. ALI, D.V. ALEXANDER

Abstract


The realm of porous media flows comprises of many sub-divisions with the unsaturated regime being the most complex accredited to variability in media moisture content, negative suction pressures and non-linearity linked to fluid acceleration effects. We present a dataset designed to be used for further investigations into this specific flow regime. The development of further unsaturated flow models, better calibrated spatio-temporal Darcy-Forchheimer’s coefficients and improvements in numerical modelling in areas such as the swash zone are foreseeable. The dataset includes both raw and processed data. Both data sets are acquired from gravity driven one-dimensional unsaturated media flow experiments on four (4) natural unconsolidated media ranging from very fine pebbles – coarse sand. A total of one hundred and twenty-two (122) varying infiltrating conditions were conducted on the four (4) initially unsaturated media. The raw data was captured by a GoPro HERO 6 recording at 1080p with screen resolution 1920x1080 at 30fps. The raw dataset provides these recordings. The processed dataset provides instantaneous readings of infiltrating velocity at the media – fluid interface, infiltrated depth and driving pressure head optically extracted from recordings. The repository containing the processed data enables researchers to contribute additional unsaturated media experiments and expand the dataset collaboratively.


Keywords


Infiltration; Natural Media; Video-Based Analysis, Non-linear regression.

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