Understanding Soil-Water Interaction Mechanisms via Molecular Simulations

2017 ◽  
Author(s):  
Chao Zhang
Keyword(s):  
Soil Water ◽  
Molecular Simulations ◽  
Interaction Mechanisms ◽  
Water Interaction

Soil-Water Interaction

2018 ◽  
pp. 161-203 ◽  
Author(s):  
Abdel-Mohsen Onsy Mohamed ◽  
Evan K. Paleologos
Keyword(s):  
Soil Water ◽  
Water Interaction

Vertical Penetration of Offshore Pipelines: A Comparative Study Between Finite Element and Finite Volume Methods

2015 ◽  
Author(s):  
Sujan Dutta ◽  
Bipul Hawlader ◽  
Ryan Phillips
Keyword(s):  
Finite Element ◽  
Numerical Modeling ◽  
Strain Rate ◽  
Soil Water ◽  
Finite Volume ◽  
Computational Time ◽  
Near Surface ◽  
Water Interaction ◽  
Ansys Cfx ◽  
Penetration Behaviour

Deepwater surface laid pipelines generally penetrate a fraction of their diameter into the seabed. The near surface penetration behaviour of steel catenary risers (SCRs) is equally important in offshore oil and gas developments. Theoretical, physical and numerical investigations have been performed to understand pipeline–soil interaction during vertical penetration. The large deformation finite element (LDFE) modeling is a recent and advanced tool among different numerical modeling techniques. The authors of this study simulated the penetration of pipeline using Abaqus CEL Finite Element (FE) software [1]. They also developed a numerical modeling technique based on finite volume approach using ANSYS CFX [2] and showed some of its advantages. However, in that study an ideal soil (i.e. no softening or strain rate effects on undrained shear strength) was used. Strain rate and softening have significant effects on penetration behaviour and therefore in this study a numerical technique has been developed to incorporate these effects in ANSYS CFX. Comparison of the results shows that ANSYS CFX can also model the penetration behaviour. Moreover, ANSYS CFX has some advantages including low computational time, modeling of suction and pipeline–soil–water interaction. A parametric study is also presented to provide more insights into the pipeline–soil–water interaction.

An improved VOF-DEM model for soil-water interaction with particle size scaling

2020 ◽  
Vol 128 ◽  
pp. 103818
Author(s):  
Xuzhen He ◽  
Haoding Xu ◽  
Wengui Li ◽  
Daichao Sheng
Keyword(s):  
Particle Size ◽  
Soil Water ◽  
Water Interaction ◽  
Size Scaling ◽  
Dem Model

Elucidation of phenol-Cu interaction mechanisms by potentiometry, ESR, UV absorption spectroscopy and molecular simulations

1999 ◽  
Vol 228 (1) ◽  
pp. 49-58 ◽  
Author(s):  
Andrea Oess ◽  
Martin V Cheshire ◽  
Donald B McPhail ◽  
Serge Stoll ◽  
Mazen El Alaili ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Molecular Simulations ◽  
Uv Absorption ◽  
Interaction Mechanisms ◽  
Uv Absorption Spectroscopy

Elementary processes of soil–water interaction and thresholds in soil surface dynamics: a review

2004 ◽  
Vol 29 (9) ◽  
pp. 1077-1091 ◽  
Author(s):  
Richard S. B. Greene ◽  
Peter B. Hairsine
Keyword(s):  
Soil Water ◽  
Soil Surface ◽  
Surface Dynamics ◽  
Elementary Processes ◽  
Water Interaction

Drug-Lipid Membrane Interaction Mechanisms Revealed Through Molecular Simulations

2012 ◽  
Vol 2 (4) ◽  
pp. 379-400 ◽  
Author(s):  
Oana Cramariuc ◽  
Tomasz Rog ◽  
Ilpo Vattulainen
Keyword(s):  
Lipid Membrane ◽  
Molecular Simulations ◽  
Membrane Interaction ◽  
Interaction Mechanisms
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