Results 11 to 20 of about 40,307 (265)
Water Science and Technology, 2022 Digital twins of urban drainage systems require simulation models that can adequately replicate the physical system. All models have their limitations, and it is important to investigate when and where simulation results are acceptable and to communicate
A. N. Pedersen +5 more
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On a Continuum Model for Avalanche Flow and Its Simplified Variants
Geosciences, 2020 Mathematical models of different degrees of complexity, describing the motion of a snow avalanche along a path with given center line and spatially varying width, are formulated and compared.
Samvel S. Grigorian +1 more
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Remote Sensing, 2020 In this study, we used in situ measurements for the first time to analyze the applicability and effectiveness of evaluating groundwater storage (GWS) changes across China using Gravity Recovery and Climate Experiment (GRACE) satellite products and ...
Jianxin Zhang, Kai Liu, Ming Wang
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Geosciences, 2020 This note first summarizes the history of the manuscript “On a Continuum Model for Avalanche Flow and Its Simplified Variants” by Grigorian and Ostroumov—published in this Special Issue—since the early 1990s and explains the ...
Dieter Issler
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Beam model for hydraulic fracturing [PDF]
Physical Review B, 1994 We investigate numerically the shape of cracks obtained in hydraulic fracturing at constant pressure using a square-lattice beam model with disorder. We consider the case in which only beams under tension can break, and discuss the conditions under which the resulting cracks may develop fractal patterns.
Tzschichholz F. +3 more
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Time-Series-Based Leakage Detection Using Multiple Pressure Sensors in Water Distribution Systems
Sensors, 2019 Leak detection is nowadays an important task for water utilities as leakages in water distribution systems (WDS) increase economic costs significantly and create water resource shortages.
Yu Shao +4 more
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Predicting Hydraulic Jump Length on Rough Beds Using Data-Driven Models [PDF]
Journal of Rehabilitation in Civil Engineering, 2018 The hydraulic jump can be used for some purpose such as dissipating the flow energy in order to prevent bed erosion; aerating water and facilitating the mixing procedure of chemical that used for water purification.
Payam Khosravinia +2 more
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Probability-Statistical Models to Forecast Hydraulic Fracturing Efficiency [PDF]
E3S Web of Conferences, 2020 The article discusses the criteria for choosing fracture parameters by length, height and amount of proppant to be injected. The criteria, chosen on the basis of for probabilistic and statistical analysis are to ensure adequate application of multiand ...
Gabdrakhmanova Klara Fatkullinovna +3 more
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Dynamic characterization of pressure sensors using the principle of mariotte’s bottle
Revista Facultad de Ingeniería Universidad de Antioquia, 2014 A methodology to evaluate the dynamic characteristics of pressure sensors used in channels or hydraulic models is presented. This is based on the analysis of the ramp and step signals in the time domain for defining the useful range in amplitude and ...
Mauricio González Betancourt +1 more
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Effect of Soil-Water Characteristic Curve on the Stability of Unsupported Vertical Trenches in Unsaturated Soils [PDF]
E3S Web of Conferences, 2023 In geotechnical engineering practice, unsupported vertical trenches are typically excavated in unsaturated soils. In this case, the variation of shear strength and hydraulic conductivity with respect to soil suction is key information to analyze the ...
Oh Won-Taek, Bajestani Mahsa
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