%0 Generic %A Wang, Zhongfu %A Wallach, R. (Rony) %D 2020 %T Data underlying the research of Water infiltration into subcritically water-repellent soils with time-dependent contact angle %U https://data.4tu.nl/articles/dataset/Data_underlying_the_research_of_Water_infiltration_into_subcritically_water-repellent_soils_with_time-dependent_contact_angle/12957101/1 %R 10.4121/12957101.v1 %K Subcritically water-repellent soils %K time-dependent contact angle %K modified Green-Ampt model %K amphiphilic molecules reorientation %X *** Water infiltration into subcritically water-repellent soils with time-dependent contact angle ***Authors: Z.F. Wang, R. WallachThe Department of Soil and Water Sciences, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel <br>Corresponding author: R. Wallach Contact Information:rony.wallach@mail.huji.ac.ilThe Robert H Smith Facultyof Food, Agriculture and EnvironmentP.O. Box 12 Rehovot 76100 ISRAEL<br>***General Introduction***This dataset contains data collected during downward infiltration experiments at Hebrew University of Jerusalem<br>It is being made public both to act as supplementary data for publications and in order for other researchers to use this data in their own work.<br>The data in this data set was collected at the Department of Soil and Water Sciences - The Robert H. Smith Faculty of Agriculture, Food and Environment.<br>***Purpose of the test campaign***The purpose of these experiments was to investigate the effects of time-dependent contact angle on water infiltration into subcritically water-repellent soils.<br>***Test equipment***The contact angle was measured for sessile drops placed on uncoated, ethanol coated and oleic acid–ethanol solution-coated glass beads using a goniometer (EasyDrop DSA20E, Hamburg, Germany). Infiltration experiments for three glass beads were carried out in 60 cm glass-bead column under ponding condition with a constant water head of 3 cm.<br><br>***Description of the data in this data set***The data included in this data set has been organised as:<br>Figure 1. Time-dependent contact angle, CA(t), for: (a) Clean glass beads; (b) Ethanol coated glass beads; (c) Oleic-acid coated glass beads <br>Figure 2. Wetting front position versus time for:(a)Clean glass beads; (b)Ethanol coated glass beads; (c)Oleic-acid coated glass beads <br>Figures 3a and 3b. ql versus l and l versus t data plot for clean glass beads.<br>Figures 3c and 3d. ql versus l and l versus t data plot for ethanol coated glass beads.<br>Figures 4a and 4b. ql versus l and l versus t data plot for oleic-acid coated glass beads.<br>MATLAB code for time-dependent-CA Green-Ampt model using the measured data in Figure 4 as an example.<br> %I 4TU.ResearchData