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Experimental learning & reflection: how it promotes competence development in business education
(2019)
Bewertung von Substrataufschlussverfahren zur Steigerung des Gasertrages auf Basis von Experimenten
(2019)
Untersuchung des Einflusses von Augmented Reality auf die Beanspruchung eines Kardiotechnikers
(2019)
Identification of noise pollution in neonatal intensive care units based on work process analyses
(2019)
Information about product quality on milk packages in Germany and Poland – A ProOrg Research Project
(2019)
Numerical Verification of the Thermodynamic Determination of the Hydraulic Efficiency of Radial Fans
(2019)
Assessment of Compressible RANS and LES Methods for Organic Vapor Flows Past a NACA4412 Airfoil
(2019)
Stagnation Flow and Heat Transfer From a Finite Disk Situated Perpendicular to a Uniform Stream
(2019)
The water balance of urban areas differs considerably from the landscape water balance. Increased surface runoff, reduced groundwater recharge and evaporation change the hydrological regime, the morphology and ecology of water bodies close to the cities, the groundwater in the urban area and the urban climate. Today's urban drainage systems are designed to prevent, reduce, drain, seep away, evaporate or discharge precipitation into nearby surface waters with considerable delays. In doing so, it follows the principles of the German Water Resources Act (WHG) and the objectives of the relevant technical regulations DWA-A 102 to keep changes in the natural water balance by settlement activities as low as ecologically, technically and economically acceptable. A reference for the "natural" water balance has to be defined as a planning objective in order to quantify the hydrological changes in settlements. As a suitable reference, we propose to use the water balance of the landscape of the associated ecoregion with today's cultural land use without urban developments. This approach is more suitable to define local conditions than the water balance of the enclosed catchment. The presented calculation approach to define reference values of the water balance, uses soil and geological properties, precipitation and climate data and can be implemented and applied uniformly throughout Germany. The water balances in this study are simulated with the water balance model RoGeR. In this study, the developed approach is applied for five locations in Germany.
Im Rahmen einer nachhaltigen Stadtentwicklung wird der Vegetation die
Funktion der Beschattung und Verdunstung zugesprochen. Der Stadthydrologie fehlte hierfür bislang ein geeignetes Simulationsmodell. Der entwickelte Modellbaustein SWMM-UrbanEVA erlaubt die standortgerechte Simulation der Verdunstung von Vegetation im urbanen Raum. Für Freiflächen erfolgt die Prozessmodellierung des Energie- und Wasserhaushaltes des Systems Boden-Pflanze-Atmosphäre. Mit meteorologischen und vegetationskundlichen Kenndaten wird eine raum-zeitlich differenzierte Berechnung ermöglicht.