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). In geostatistics, simulation commonly refers to the process of generating multiple realizations of a random function to obtain an acceptable numerical solution to a spatial problem. In such studies, hundreds of alternate models (called stochastic

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The paper is devoted on simulation and analysis of seismic response of structures for Sofia region. On the base of generated artificial strong motion time histories that simulate realistic ground motions from Vrancea source were investigated the nonstationary seismic response of structures. A regenerative force actuation network were used in structural control system for reduction the excitations during possible seismic excitation. Different optimal control regimes were investigated for reduction of displacements. Experimental results for three storeys building in Sofia region were received with simulation modeling, where model of the structure were situated on shaking table.

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Within a 300 x 600 m complex heterogeneous sodic grassland two techniques were compared for assessing soil salinity. The standard technique is based on repeated field instrumental measurements at 420 points. The alternative technique was performed with the use of numerical simulation of salt accumulation carried out on 3 profiles. These profiles have been selected as representatives of the distinct classes, or map strata of salt accumulation, distinguished with preliminary statistical clustering of the instrumental measuring points. Simulated values were extrapolated for the 3 strata distinguished. The maps obtained with the two techniques were statistically correlated. The use of numerical simulation is cost-effective. Further improvements are expected from a combination of improved numerical simulation and utilization of more strata.

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The Euganean Geothermal Field (EGF) is the most important thermal field in northern Italy. It is located in the alluvial plain of the Veneto Region where approximately 17*106 m3 of thermal water with temperatures of 60–86 °C are exploited annually. A regional-scale conceptual model of the Euganean Geothermal System is proposed in this paper using the available hydrogeologic, geochemical and structural data for both the EGF and central Veneto. The thermal water is of meteoric origin and infiltrates approximately 80 km to the north of the EGF in the Veneto Prealps. The water flows to the south in a Mesozoic limestone and dolomite reservoir reaching a depth of approximately 3,000 m and a temperature of approximately 100 °C due to the normal geothermal gradient. The regional Schio-Vicenza fault system and its highly permeable damage zone act as a preferential path for fluid migration in the subsurface. In the EGF area, a geologic structure formed by the interaction of different segments of the fault system increases the local fracturing and the permeability favoring the upwelling of the thermal waters. Numerical simulations are performed to validate the proposed conceptual model using a finite difference code that simulates thermal energy transport in hydrothermal systems. A specific configuration of thermal conductivity and permeability for the formations involved in the thermal system is obtained after calibration of these parameters. This set of parameters is verified in a long-term simulation (55,100 years) obtaining a 60–70 °C plume in the EGF area. The modeled temperatures approach the measured temperatures of 60–86 °C, demonstrating that this conceptual model can be realistically simulated.

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. Chiang , W.H. 2006 : Processing MODFLOW Pro, A Simulation System for Modeling Groundwater Flow and Transport Processes . — Users manual, manuscript, Webtech 360 Inc

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flow and transport simulation system. User’s manual — DHIWASY, Berlin. Faccenna , C. , R. Funiciello , M. Mattei 1994 : Late Pleistocene N–S shear zones along the

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quality rock bodies by mapping and simulation of potentiometric surface anomalies . — Bulletin of Canadian Petroleum Geology, 36 / 4 , pp. 362 – 378 . Underschultz , J.R. , C.J. Otto

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217 224 Carr, J.R., D.E. Myers 1985: COSIM. A Fortran IV program for Conditional Simulations. - Computer and Geosciences, 11, pp. 675-705. COSIM. A

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Introduction Stochastic spatial simulation is a widely used method to quantify and display spatial uncertainty. Multiple, alternative, and equiprobable realizations are used to represent the spatial uncertainty of the given

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Central European Geology
Authors:
Zsuzsanna Szabó
,
Nóra Edit Gál
,
Éva Kun
,
Teodóra Szőcs
, and
György Falus

study area by thermodynamic and kinetic batch models, and finally a one-dimensional (1D) kinetic reactive transport simulation is also provided. Studied area In total, 13 potential CO 2 geological storage reservoirs, i

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