All about water
15
2016–2019
1,360
44 minutes 30 seconds
15 results
01:38
24N. N.This experiment reproduces the conditions that lead to soil liquefaction. For this reason, a container filled with fine sand and water is placed on a shaking table together with three different metal objects. At the beginning of the experiment, the shear strength of the soil is large enough to sustain the weight of the steel objects without collapsing. However, as the shaking table starts to vibrate, excess pore water pressure is generated causing a reduction in the effective stresses in the soil causing it to fail and resulting in a loss of equilibrium between the soil and the metal objects." This is part of the Open Educational Resources Initiative by the Faculty of Civil Engineering of the RWTH Aachen University.
2016RWTH Aachen University et al.
04:06
10Haumer, Benedikt"This educational film explains the seepage processes through a dike. For this purpose, the prevalent methods for the determination of the phreatic line are presented. A model dike was developed for the shooting and built in an experimental rig. The phreatic line is determined by analytical, numerical and experimental methods. These methods are then compared with each other. In the second half of the film, all methods are used to determine the phreatic line of the dike with a watertight core. Again all methods are then compared." This is part of the Open Educational Resources Initiative by the Faculty of Civil Engineering of the RWTH Aachen University.
2016RWTH Aachen University et al.
01:01
36N. N.This is part of the Open Educational Resources Initiative by the Faculty of Civil Engineering of the RWTH Aachen University.
2016RWTH Aachen University et al.
01:29
41N. N."This experiment reproduces the conditions that lead to a hydraulic heave. An aquarium, divided into two parts by an acrylic wall, was filled with water and sand on the respective side. This model represents an excavation process where at the beginning of the experiment the soil and water are static and in equilibrium. During the experiment, the water level in the excavated side (left side of the model) is lowered and the flow of water causes a seepage pressure. At the base of the wall on the excavated side, the seepage pressure concentrates and acts against the soil's weight. This pressure increases until a point at which it exceeds the effective soil weight producing the soil to “boil” into a mixture of water and soil." This is part of the Open Educational Resources Initiative by the Faculty of Civil Engineering of the RWTH Aachen University.
2016RWTH Aachen University et al.
02:54
8N. N."Ethohydraulic experiment at the Institute of Hydraulic Engineering and Water Resources Management at RWTH Aachen University. Live fish are examined in a testing flume in order to learn more about their behaviour in front of hydro-engineering structures like bar racks." This is part of the Open Educational Resources Initiative by the Faculty of Civil Engineering of the RWTH Aachen University.
2016RWTH Aachen University et al.
02:50
18N. N."The annular flume is used for investigations of cohesive sediments. In our project, annular flume experiments are used to assess the ecotoxicological risk exposure due to an erosion of contaminated cohesive sediments." This is part of the Open Educational Resources Initiative by the Faculty of Civil Engineering of the RWTH Aachen University.
2016RWTH Aachen University et al.
04:22
24Pinnekamp, Johannes et al."This video shows how adding precipitants and flocculants enhances conventional primary treatment. In contrast to primary treatment without chemicals, more organic pollution load is transferred into the sludge resulting in a clear supernatant. This technology is suitable for wastewater treatment plants which are only designed for mechanical treatment. can be applied for mechanical wastewater treatment without any requirements regarding the nitrogen elimination. On the other hand, it can help to improve the energy efficiency of a biological wastewater treatment plant by providing more organic substrate for digestion thus leading to a higher gas production." This is part of the Open Educational Resources Initiative by the Faculty of Civil Engineering of the RWTH Aachen University.
2017RWTH Aachen University et al.
02:59
23N. N.“Dilatancy is the property of dense packed granular material in which the volume increases while subjected to shear deformation.” This is part of the Open Educational Resources Initiative by the Faculty of Civil Engineering of the RWTH Aachen University.
2017RWTH Aachen University et al.
01:45
987N. N."The tilting flume at the Institute of Hydraulic Engineering and Water Resources Management at RWTH Aachen University shows the differences between subcritical and supercritical flow. Therefore, a hydraulic jump is generated in open channel flow. A hydraulic jump is formed when the depth of flow changes from supercritical to subcritical state." This is part of the Open Educational Resources Initiative by the Faculty of Civil Engineering of the RWTH Aachen University.
2017RWTH Aachen University et al.
02:01
78N. N."The teaching laboratory at the Institute of Hydraulic Engineering and Water Resources Management at RWTH Aachen University is used to generate both a laminar and a turbulent flow in a horizontal pipe. The Reynolds-number can be used to determine if flow is laminar, transient or turbulent." This is part of the Open Educational Resources Initiative by the Faculty of Civil Engineering of the RWTH Aachen University.
2017RWTH Aachen University et al.
02:17
25N. N."This presentation shows the avarage precipitation per 1 square metre in Aachen." This is part of the Open Educational Resources Initiative by the Faculty of Civil Engineering of the RWTH Aachen University.
2017RWTH Aachen University et al.
01:52
23N. N."This presentation shows the avarage precipitation per 1 square metre in Aachen in form of a solid water body." This is part of the Open Educational Resources Initiative by the Faculty of Civil Engineering of the RWTH Aachen University.
2017RWTH Aachen University et al.
05:16
26N. N."Flood polders are used to improve water retention and thus attenuate flood peaks in the course of small-scale and average flood events. Breach formation processes and its influencing factors are still subject to a number of uncertainties. In that context, physical model tests of dike breaches were performed in the hydraulic laboratory in Aachen to quantify the targeted filling of flood polders." This is part of the Open Educational Resources Initiative by the Faculty of Civil Engineering of the RWTH Aachen University.
2019RWTH Aachen University et al.
07:01
29N. N."Flood polders are used to improve water retention and thus attenuate flood peaks in the course of small-scale and average flood events. Breach formation processes and its influencing factors are still subject to a number of uncertainties. In that context, physical model tests of dike breaches were performed in the hydraulic laboratory in Aachen to quantify the targeted filling of flood polders." This is part of the Open Educational Resources Initiative by the Faculty of Civil Engineering of the RWTH Aachen University.
2019RWTH Aachen University et al.
02:51
8N. N."This video shows you the average precipitation around the world." This is part of the Open Educational Resources Initiative by the Faculty of Civil Engineering of the RWTH Aachen University.
2019RWTH Aachen University et al.