Drying characteristics of oil shale under microwave heating based on a fully coupled three-dimensional electromagnetic-thermal-multiphase transport model

Abstract. Measurements from 2002 to 2011 by three independent satellite instruments, namely MIPAS, SABER, and SMR on board the ENVISAT, TIMED, and Odin satellites are used to investigate the intra-seasonal variability of stratospheric and mesospheric O3 volume mixing ratio (vmr) inside the Antarctic polar vortex due to solar and geomagnetic activity. In this study, we individually analysed the relative O3 vmr variations between maximum and minimum conditions of a number of solar and geomagnetic indices (F10.7 cm solar radio flux, Ap index, ≥ 2 MeV electron flux). The indices are 26-day averages centred at 1 April, 1 May, and 1 June while O3 is based on 26-day running means from 1 April to 1 November at altitudes from 20 to 70 km. During solar quiet time from 2005 to 2010, the composite of all three instruments reveals an apparent negative O3 signal associated to the geomagnetic activity (Ap index) around 1 April, on average reaching amplitudes between −5 and −10% of the respective O3 background. The O3 response exceeds the significance level of 95% and propagates downwards throughout the polar winter from the stratopause down to ~ 25 km. These observed results are in good qualitative agreement with the O3 vmr pattern simulated with a three-dimensional chemistry-transport model, which includes particle impact ionisation.

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A Fully Coupled Numerical Model for Microwave Heating Enhanced Shale Gas Recovery

Energies ◽

10.3390/en11061608 ◽

2018 ◽

Vol 11 (6) ◽

pp. 1608 ◽

Cited By ~ 11

Author(s):

Jia Liu ◽

Jianguo Wang ◽

Chunfai Leung ◽

Feng Gao

Keyword(s):

Numerical Model ◽

Microwave Heating ◽

Shale Gas ◽

Gas Recovery ◽

Coupled Numerical Model ◽

Fully Coupled

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The UIUC three-dimensional stratospheric chemical transport model: Description and evaluation of the simulated source gases and ozone

Journal of Geophysical Research Atmospheres ◽

10.1029/1999jd900138 ◽

1999 ◽

Vol 104 (D9) ◽

pp. 11755-11781 ◽

Cited By ~ 67

Author(s):

Eugene V. Rozanov ◽

Vladimir A. Zubov ◽

Michael E. Schlesinger ◽

Fanglin Yang ◽

Natalia G. Andronova

Keyword(s):

Transport Model ◽

Three Dimensional ◽

Chemical Transport ◽

Model Description ◽

Chemical Transport Model ◽

Simulated Source

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Revisiting directed flow in relativistic heavy-ion collisions from a multiphase transport model

The European Physical Journal A ◽

10.1140/epja/i2017-12431-2 ◽

2017 ◽

Vol 53 (12) ◽

Cited By ~ 8

Author(s):

Chong-Qiang Guo ◽

Chun-Jian Zhang ◽

Jun Xu

Keyword(s):

Heavy Ion Collisions ◽

Transport Model ◽

Heavy Ion ◽

Relativistic Heavy Ion Collisions ◽

Directed Flow ◽

Multiphase Transport ◽

Ion Collisions

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A Meso-Electro-Mechanical Model for PMN-PT-BT Ceramics Behavior

10.1115/imece2001/ad-23747 ◽

2001 ◽

Author(s):

Jinghong Fan

Keyword(s):

Phase Transition ◽

Mechanical Model ◽

Three Dimensional ◽

Constitutive Behavior ◽

Rate Equations ◽

State Variables ◽

Empirical Relationships ◽

Nonlinear Hysteresis ◽

Fully Coupled ◽

Maximum Permittivity

Abstract A three-dimensional, meso-electro-mechanical model has been formulated for description of PMN-PT-BT ceramics. Unlike the experimentally fit models and phenomenological models which are based on state variables and/or empirical relationships, this fully coupled, computational mesomechanics model for polycrystalline PMN-PT-BT ceramics is developed based on considerations of constitutive behavior of single crystals. Specifically, domain wall nucleation and evolution rate equations are proposed in this work to describe the nonlinear hysteresis behavior of these ceramics near the phase transition temperature with maximum permittivity.

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Implementation of state-of-the-art ternary new-particle formation scheme to the regional chemical transport model PMCAMx-UF in Europe

Geoscientific Model Development ◽

10.5194/gmd-9-2741-2016 ◽

2016 ◽

Vol 9 (8) ◽

pp. 2741-2754 ◽

Cited By ~ 8

Author(s):

Elham Baranizadeh ◽

Benjamin N. Murphy ◽

Jan Julin ◽

Saeed Falahat ◽

Carly L. Reddington ◽

...

Keyword(s):

Transport Model ◽

Three Dimensional ◽

Chemical Transport ◽

Particle Formation ◽

Radiative Transfer Model ◽

Transfer Model ◽

New Particle Formation ◽

Chemical Transport Model ◽

Order Of Magnitude ◽

Adjustment Scheme

Abstract. The particle formation scheme within PMCAMx-UF, a three-dimensional chemical transport model, was updated with particle formation rates for the ternary H2SO4–NH3–H2O pathway simulated by the Atmospheric Cluster Dynamics Code (ACDC) using quantum chemical input data. The model was applied over Europe for May 2008, during which the EUCAARI-LONGREX (European Aerosol Cloud Climate and Air Quality Interactions–Long-Range Experiment) campaign was carried out, providing aircraft vertical profiles of aerosol number concentrations. The updated model reproduces the observed number concentrations of particles larger than 4 nm within 1 order of magnitude throughout the atmospheric column. This agreement is encouraging considering the fact that no semi-empirical fitting was needed to obtain realistic particle formation rates. The cloud adjustment scheme for modifying the photolysis rate profiles within PMCAMx-UF was also updated with the TUV (Tropospheric Ultraviolet and Visible) radiative-transfer model. Results show that, although the effect of the new cloud adjustment scheme on total number concentrations is small, enhanced new-particle formation is predicted near cloudy regions. This is due to the enhanced radiation above and in the vicinity of the clouds, which in turn leads to higher production of sulfuric acid. The sensitivity of the results to including emissions from natural sources is also discussed.

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Liquid water infiltration into a layered snowpack: evaluation of a 3-D water transport model with laboratory experiments

Hydrology and Earth System Sciences ◽

10.5194/hess-21-5503-2017 ◽

2017 ◽

Vol 21 (11) ◽

pp. 5503-5515 ◽

Cited By ~ 8

Author(s):

Hiroyuki Hirashima ◽

Francesco Avanzi ◽

Satoru Yamaguchi

Keyword(s):

Liquid Water ◽

Laboratory Experiments ◽

Preferential Flow ◽

Transport Model ◽

Three Dimensional ◽

Water Infiltration ◽

Flow Paths ◽

Preferential Flow Paths ◽

Capillary Barriers ◽

Wet Snow

Abstract. The heterogeneous movement of liquid water through the snowpack during precipitation and snowmelt leads to complex liquid water distributions that are important for avalanche and runoff forecasting. We reproduced the formation of capillary barriers and the development of preferential flow through snow using a three-dimensional water transport model, which was then validated using laboratory experiments of liquid water infiltration into layered, initially dry snow. Three-dimensional simulations assumed the same column shape and size, grain size, snow density, and water input rate as the laboratory experiments. Model evaluation focused on the timing of water movement, thickness of the upper layer affected by ponding, water content profiles and wet snow fraction. Simulation results showed that the model reconstructs relevant features of capillary barriers, including ponding in the upper layer, preferential infiltration far from the interface, and the timing of liquid water arrival at the snow base. In contrast, the area of preferential flow paths was usually underestimated and consequently the averaged water content in areas characterized by preferential flow paths was also underestimated. Improving the representation of preferential infiltration into initially dry snow is necessary to reproduce the transition from a dry-snow-dominant condition to a wet-snow-dominant one, especially in long-period simulations.

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