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KINZELBACH (W.) / OSWALD (S. E.) - ARTICLE DE PERIODIQUE - 2004Flow and transport in saturated porous media may be influenced, or even dominated, by phenomena of variable-density flow, if solute concentration gradients are high. The numerical codes used for simulation of these situations have to be tested in order to ensure their reliability. A series of...Ressource payante — PermalienFonds documentaire OIEauContributeur (s):
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HENDRICKS FRANSSEN (H. J. W. M.) / KINZELBACH (W.) / STAUFFER (F.) - ARTICLE DE PERIODIQUE - 2003A synthetic study, using a Monte Carlo approach, was conducted to investiga- te the impact of spatially variable recharge on the uncertainty of a well capture zone. The impact of spatial recharge variability was found limited for a moderately heterogeneous transmissivity field. Only recharge...Ressource payante — PermalienFonds documentaire OIEauContributeur (s):
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ATTINGER (S.) / DIMITROVA MICHA (J.) / KINZELBACH (W.) - ARTICLE DE PERIODIQUE - 2003Our investigations focus on the large-scale transport behaviour of nonlinear reactive transport processes in heterogeneous aquifers. The adsorption reaction is described by an equilibrium isotherm of Freundlich type. In a stochastic modelling approach we analyse temporal moments of breakthrough...Ressource payante — PermalienFonds documentaire OIEauContributeur (s):
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AESCHBACH-HERTIG (W.) / HOLOCHER (J.) / KINZELBACH (W.) / KIPFER (R.) / PEETERS (F.) - ARTICLE DE PERIODIQUE - 2003Bubble-mediated mass transfer is of major importance for the gas exchange between soil air and groundwater. The presence of entrapped air bubbles in the upper, quasi-saturated aquifer zone can crucially affect the interpretation of atmospheric trace gas concentrations in groundwater and associated...Ressource payante — PermalienFonds documentaire OIEauContributeur (s):
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KINZELBACH (W.) / OSWALD (S. E.) - ARTICLE DE PERIODIQUE - 2000Flow and transport in saturated porous media are influenced or even dominated by the effects of density flow if solute concentration gradients are high. The numerical codes used in the simulation of these nonlinear phenomena have to be tested in order to ensure their reliability. A series of...Ressource payante — PermalienFonds documentaire OIEauContributeur (s):
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ACKERER (P.) / KINZELBACH (W.) / OSWALD (S. E.) / YOUNES (A.) - ARTICLE DE PERIODIQUE - 2000Numerous questions are still open in the modelling of density driven flow. These questions address the mathematical formulation of the mass balance equations and the numerical resolution of these nonlinear coupled equations. An attempt at model validation is made by simulating two test cases with a...Ressource payante — PermalienFonds documentaire OIEauContributeur (s):
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FULDA (C.) / KINZELBACH (W.) / ZOELLMANN (K.) - ARTICLE DE PERIODIQUE - 2001An important quantity in groundwater protection is the residence time of water in an aquifer. It relates to both the travel time of a pollutant to arrive at a well and the time span required for self-purification of a polluted aquifer after removal of pollutant inputs. Time scales for aquifers can...Ressource payante — PermalienFonds documentaire OIEauContributeur (s):
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BEYERLE (U.) / HUGGENBERGER (P.) / KINZELBACH (W.) / LOOSLI (H. H.) / MATTLE (N.) - ARTICLE DE PERIODIQUE - 2001This article presents a numerical model of a part of an aquifer that is recharged by infiltration from the Swiss pre-Alpine river Toss in the Linsental (north-eastern Switzerland). The nearby city of Winterthur makes use of this aquifer as a resource of drinking water. The presented model is part...Ressource payante — PermalienFonds documentaire OIEauContributeur (s):
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FULDA (C.) / KINZELBACH (W.) - ARTICLE DE PERIODIQUE - 2000Sulphur hexafluoride (SF6) was measured in shallow groundwater from the upper limestone aquifer near Stuttgart, Germany, in order to determine the time since the groundwater was recharged. Technical preconditions for dating groundwater with SF6 are described. Plausible water ages. can be deduced...Ressource payante — PermalienFonds documentaire OIEauContributeur (s):
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FULDA (C.) / KINZELBACH (W.) / SCHAFER (W.) - ARTICLE DE PERIODIQUE - 2000A tracer study was performed in a limestone aquifer near Tauber-Bischofshei- m, Germany. To determine the temporal dynamics of the aquifer time series of the tracers 3H and CFCs were measured. While 3H and CFC-113 concentrations are nearly constant over time CFC-11 and CFC-12 show a seasonal...Ressource payante — PermalienFonds documentaire OIEauContributeur (s):
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KINZELBACH (W.) / PLUMACHER (J.) - ARTICLE DE PERIODIQUE - 2000A steady-state two-dimensional groundwater flow and transport model of a fractured carbonate aquifer in central Württemberg (southwest Germany) was used to study the feasibility of applying stable isotopes in model calibration and to define the capture zone of the mineral springs in Stuttgart-Bad...Ressource payante — PermalienFonds documentaire OIEauContributeur (s):
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HOHENER (P.) / KINZELBACH (W.) / THULLNER (M.) / ZEYER (J.) - ARTICLE DE PERIODIQUE - 2000The dual pumping technique (DPT) was introduced recently as a new and inexpensive technique to measure the level-determined solute concentrations in groundwater. Using two pumps, one placed near the groundwater table and one placed near the bottom of a fully screened well, this technique allows to...Ressource payante — PermalienFonds documentaire OIEauContributeur (s):