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Showing 1 to 20 of 109 for “"Hydraulic Engineering"”.
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Erschließung der automatischen Strömungsoptimierung zur Lösung von Gestaltungsaufgaben im Wasserbau
… numerical flow models are widely used tools in hydraulic engineering, as for the design of turbine intakes. In this field, problems are often closely linked to the question of an optimal solution depending on various influences. With the connection of an optimization algorithm and a flow model …
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Eindimensionale Berechnung instationärer und diskontinuierlicher Strömungen in abflussschwachen naturnahen Fließgewässern
Almost all major hydraulic engineering activities involve the computation of water levels and discharges along a river reach. Computation of the water level is essential for the determination of the effect of a hydraulic structure on the water level, inundation of land due to dams, weirs or barrage …
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Numerical analysis of subcritical open channel flow by the penalty function finite element method
Many free surface flow problems encountered in hydraulic engineering can be accurately analyzed by utilizing the depth-averaged equations of motion. A consequence of adopting this depth-averaged modeling approach is that closure approximations must be implemented to represent the so-called …
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Virtual Worlds and Conservational Channel Evolution and Pollutant Transport Systems (Concepts)
… Many numerical models exist in the field of hydraulic engineering, fluvial geomorphology, landscape architecture, and stream ecology that evaluate and formulate stream rehabilitation plans. This dissertation will explore, in the field of "Hydroscience", the creation of models that are not …
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Managing historic mountain landscapes near a modern city: the case of the Beijing Western Hills, 1912-2012
… and landscape design; 2) city planning; 3) hydraulic engineering; 4) forestry; and 5) cultural heritage management. These disciplinary efforts emerged as procedures and methods for solving common problems posed by the new relationship between the city and its adjacent rugged terrains, …
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Automatische Optimierung zur Bewertung und Risikoanalyse einer Hochwasserschutzmaßnahme
… as boundary condition. Apart from the improved hydraulic description of the optimization problem the evaluation module is extended by statistically and empirically justified cost functions, so that a monetary evaluation of each suggested variant can take place. The invention of indirect …
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3D-Netzgenerierung für Fließgewässer
… VII leaded in cooperation with the Institute of Hydraulic Engineering and Water Resources Management of the Aachen University of Technology. Physical processes can be simulated by partial differential equations that can be solved i.e. numerical with the finite-element-method and requires adjusted …
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Sedimentation and Consolidation of cohesive and non-cohesive soils formed under turbulent flows
… issue in many fields such as geotechnical engineering, coastal and hydraulic engineering, and environmental engineering. A comprehensive literature review was conducted on the settling, consolidation and erosion of mixed soil material (cohesive and non-cohesive). Soil beds formed by …
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Analyse der Unsicherheiten bei der Ermittlung der Schadenspotentiale infolge Überschwemmung
… Damage), developed at the Institute of Hydraulic Engineering and Water Resources Management (IWW), RWTH Aachen University, offers an effective and precise instrument for the calculation of risks associated with hydraulic engineering structures. The procedure is divided into three steps: …
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A qualitative assessment and optimization of URANS modelling for unsteady cavitating flows
… responsible for erosion damage and vibrations in hydraulic engineering devices to being used for non-invasive medical surgeries and drilling for geothermal energy. While the phenomenon has been investigated using both experimental and numerical methods, it continues to pose a challenge for …
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Mada'in Salih, a Nabataean town in north west Arabia: analysis and interpretation of the excavation 1986-1990
… baths. They were also famous for their skills in hydraulic engineering and the production of very thin, distinctively painted pottery. Mada'in Salih was an important station on the trade route which linked south Arabia with Mediterranean countries. The main feature of the site is the monumental …
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Lattice Boltzmann modeling for shallow water equations using high performance computing
… have wide applications in ocean, coastal, and hydraulic engineering, which can benefit from the advantages of the LBM. The LBM has recently become an attractive numerical method to solve various fluid dynamics phenomena; however, it has not been extensively applied to modeling shallow water …
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Coupled Sediment Yield And Sediment Transport Model To Support Navigation Planning In Northeast Brazil
… training structures and chute cut-off canals or engineering of navigation locks and dams. More recently, hydraulic and sediment transport modeling techniques have been developed and applied in designs of specific waterway development features within discrete reaches of a system. However, previous …
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Water and the City: Roman Water Distribution and Use in the Transjordan Decapolis
<p>Cities in the Roman Decapolis relied on hydraulic engineering to sustain urban centers, and access to and use of water were shaped by power dynamics, managed through infrastructure, and governed by actors ranging from imperial administration to local communities. Urban water systems in this …
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Numerical modeling of river migration incorporating erosional and depositional bank processes
… in the fields of fluvial geomorphology, hydraulic engineering and river restoration. Several meander evolution models developed over the years have provided a deeper insight into meander dynamics. In almost all these models however, a river width that remains constant in space and in time …
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Hydraulic efficiency of grate and curb inlets for urban storm drainage
… of this research program included evaluating the hydraulic efficiency of three storm-drain inlet types and developing design methodology. Denver Type 13 and 16 grate inlets and Colorado Department of Transportation Type R curb inlet were evaluated during the course of testing. Grate inlets were …
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Improvements of MPM and Its Applications in Modelling Rapid Soil/Water Movements
… interaction is a central challenge for studying hydraulic problems such as seepage flows through embankments, overtopping induced dam failures and the erosion of riverbanks and coastal areas. Since numerical simulations are significantly less costly tools than physical experiments even on a small …
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Simulation of free-surface flows and development of an improved particle method
… tools for studying free-surface flows in various engineering problems. They are able to easily simulate complicated fluid interface flows. As a Lagrangian method, MPS with a weakly-compressible technique, Weakly-Compressible Moving Particle Semi-implicit method (WC-MPS), has been widely applied …
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Geomorphic Equations and Methods for Natural Channel Design
Natural channel design in river engineering is the philosophy and practice of designing stream channels by copying or mimicking the geomorphology of stable, self-formed streams. This dissertation presents methods and equations for incorporating the principals of natural channel design into river …
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Triangular weirs
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