Numerical Simulation of Interaction of Cut-Off Wall and Earth-Rock Dam in the Reinforcement Project

Concrete cut-off wall has been widely used in the reinforcement project of earth-rock dam. Its design method and construction technology are comparatively mature, but comprehensive study of interaction of cut-off wall and dam is few, especially for the case that new cut-off wall built in earth-rock dam. In order to discuss the principal and law of interaction of cut-off wall and earth-rock dam in the reinforcement project, seepage field and stress field coupled numerical model was established by using ABAQUS. The contact between the wall and the dam together with the coupling of the stress and the seepage were taken into account in the model. Through coupling calculation of typical earth-rock dam project, the results show that, the model is feasible to simulate the interaction of cut-off wall and earth-rock dam, and the method can provide reference for design calculations of cut-off wall in reinforcement project of earth-rock dam.

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A NONLINEAR COUPLED NUMERICAL MODEL FOR ASTRONOMICAL TIDES AND STORM SURGE - NUMERICAL SIMULATION OF THE STORM SURGE IN RIVER CHANGJIANG’S ESTUARY

Asian and Pacific Coasts 2003 ◽

10.1142/9789812703040_0011 ◽

2004 ◽

Author(s):

Tan Ya ◽

Zhang Junlun

Keyword(s):

Numerical Simulation ◽

Numerical Model ◽

Storm Surge ◽

Coupled Numerical Model

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Stabality Analysis of Deep Roadway Based on Coupled Thermo-Hydro-Mechanical Behaviors

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.594-597.2564 ◽

2012 ◽

Vol 594-597 ◽

pp. 2564-2568

Author(s):

Qi Feng Guo ◽

Fen Hua Ren ◽

Zhao Cai Zhang

Keyword(s):

Temperature Field ◽

Numerical Model ◽

Stress Field ◽

Constitutive Relation ◽

Mechanical Behaviors ◽

Seepage Field ◽

Mechanical Equation ◽

Rock Temperature ◽

Ground Stress ◽

The Stability

In order to research the stability of excavation in deep mines under high ground stress, high rock temperature and high karst hydraulic, the interaction of stress field, seepage field and temperature field are discussed through basic constitutive relation, seepage equation, thermometer equation and coupled thermo-hydro-mechanical equation. A numerical model was built to simulate the excavation of deep roadway. The result shows that the simulated ground stress based on three fields coupled is much closer to the field measured value and the change of stress and displacement caused by the excavation are limited which is about same as the later monitoring.

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Numerical Simulation of Flow Characteristics behind a Circular Patch of Vegetation using a Two-Dimensional Numerical Model

Journal of Korea Water Resources Association ◽

10.3741/jkwra.2015.48.11.891 ◽

2015 ◽

Vol 48 (11) ◽

pp. 891-903

Author(s):

Hyung Suk Kim ◽

Moonhyeong Park

Keyword(s):

Numerical Simulation ◽

Numerical Model ◽

Flow Characteristics ◽

Two Dimensional ◽

Circular Patch

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Groundwater flow simulation and its application in GaoSong ore field, China

Journal of Water and Climate Change ◽

10.2166/wcc.2018.182 ◽

2018 ◽

Vol 10 (2) ◽

pp. 276-284 ◽

Cited By ~ 2

Author(s):

Gang Chen ◽

Shiguang Xu ◽

Chunxue Liu ◽

Lei Lu ◽

Liang Guo

Keyword(s):

Numerical Model ◽

Flow Field ◽

Groundwater Flow ◽

Mine Water ◽

Permeability Coefficient ◽

Water Inrush ◽

Seepage Field ◽

Groundwater Seepage ◽

Calculation Results ◽

Groundwater Flow Field

Abstract Mine water inrush is one of the important factors threatening safe production in mines. The accurate understanding of the mine groundwater flow field can effectively reduce the hazards of mine water inrush. Numerical simulation is an important method to study the groundwater flow field. This paper numerically simulates the groundwater seepage field in the GaoSong ore field. In order to ensure the accuracy of the numerical model, the research team completed 3,724 field fissure measurements in the study area. The fracture measurement results were analyzed using the GEOFRAC method and the whole-area fracture network data were generated. On this basis, the rock mass permeability coefficient tensor of the aquifer in the study area was calculated. The tensor calculation results are used in the numerical model of groundwater flow. After calculation, the obtained numerical model can better represent the groundwater seepage field in the study area. In addition, we designed three different numerical models for calculation, mainly to explore the influence of the tensor assignment of permeability coefficient on the calculation results of water yield of the mine. The results showed that irrational fathom tensor assignment would cause a significant deviation in calculation results.

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Blowing and drifting snow in Alpine terrain: numerical simulation and related field measurements

Annals of Glaciology ◽

10.3189/1998aog26-1-174-178 ◽

1998 ◽

Vol 26 ◽

pp. 174-178 ◽

Cited By ~ 5

Author(s):

Peter Gauer

Keyword(s):

Numerical Simulation ◽

Numerical Model ◽

Three Dimensional ◽

Field Measurements ◽

Blowing Snow ◽

Related Field ◽

Drifting Snow ◽

Physically Based ◽

Snow Transport

A physically based numerical model of drifting and blowing snow in three-dimensional terrain is developed. The model includes snow transport by saltation and suspension. As an example, a numerical simulation for an Alpine ridge is presented and compared with field measurements.

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Evolution Pattern and Matching Mode of Precursor Information about Water Inrush in a Karst Tunnel

Water ◽

10.3390/w13111579 ◽

2021 ◽

Vol 13 (11) ◽

pp. 1579

Author(s):

Jie Song ◽

Diyang Chen ◽

Jing Wang ◽

Yufeng Bi ◽

Shang Liu ◽

...

Keyword(s):

Rock Mass ◽

Stress Field ◽

Displacement Field ◽

Water Inrush ◽

Seepage Field ◽

Karst Tunnel ◽

Rock Mass Structure ◽

Evolution Pattern ◽

Water Blocking ◽

Precursor Information

The water inrush of the Shangjiawan karst tunnel is used to study the evolution pattern of precursor water inrush information in water-filled caves and to further reveal the matching mode of the information. The three-dimensional numerical method FLAC3D was used to simulate the evolution process of water inrush after damage to a water-blocking rock mass structure in a water-filled cave and to obtain the evolution pattern of precursor water-inrush information caused by the damage. The results show that the multifield response to the characteristic precursor information of the water-inrush pattern after the fracture of the water-blocking rock mass follows the order of stress-field displacement-field seepage-field. Further, the matching pattern of the information shows that the stress field increased first and then decreased, the displacement field always increased, and the seepage field increased first and then decreased.

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Wind shear over the Nice Côte d'Azur airport: case studies

Natural Hazards and Earth System Science ◽

10.5194/nhess-13-2223-2013 ◽

2013 ◽

Vol 13 (9) ◽

pp. 2223-2238 ◽

Cited By ~ 6

Author(s):

A. Boilley ◽

J.-F. Mahfouf

Keyword(s):

Numerical Simulation ◽

Numerical Model ◽

Numerical Simulations ◽

Wind Shear ◽

Horizontal Wind ◽

Wind Profiler ◽

Measurement Campaign ◽

Wind Lidar ◽

Real Time Applications ◽

Wind Shears

Abstract. The Nice Côte d'Azur international airport is subject to horizontal low-level wind shears. Detecting and predicting these hazards is a major concern for aircraft security. A measurement campaign took place over the Nice airport in 2009 including 4 anemometers, 1 wind lidar and 1 wind profiler. Two wind shear events were observed during this measurement campaign. Numerical simulations were carried out with Meso-NH in a configuration compatible with near-real time applications to determine the ability of the numerical model to predict these events and to study the meteorological situations generating an horizontal wind shear. A comparison between numerical simulation and the observation dataset is conducted in this paper.

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Numerical Simulation for Microconvection Around Nano-Particle With Brownian Motion in Liquid

Heat Transfer: Volume 1 ◽

10.1115/ht2003-47347 ◽

2003 ◽

Author(s):

B. X. Wang ◽

H. Li ◽

X. F. Peng ◽

L. X. Yang

Keyword(s):

Heat Transfer ◽

Numerical Simulation ◽

Brownian Motion ◽

Numerical Model ◽

Temperature Gradient ◽

Transfer Process ◽

Heat Transfer Process ◽

Nano Particles ◽

Analytic Method ◽

Nano Particle

The development of a numerical model for analyzing the effect of the nano-particles’ Brownian motion on the heat transfer is described. By using the Maxwell velocity distribution relations to calculate the most possible velocity of fluid molecules at certain temperature gradient location around the nano-particle, the interaction between fluid molecules and one single nano-particle is analyzed and calculated. Based on this, a syntonic system is proposed and the coupled effect that Brownian motion of nano-particles has on fluid molecules is simulated. This is used to formulate a reasonable analytic method, facilitating laboratory study. The results provide the essential features of the heat transfer process, contributed by micro-convection to be considered.

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Calculation and Design Method Study of the Coil-Wound Heat Exchanger

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1008-1009.850 ◽

2014 ◽

Vol 1008-1009 ◽

pp. 850-860 ◽

Cited By ~ 3

Author(s):

Zhou Wei Zhang ◽

Jia Xing Xue ◽

Ya Hong Wang

Keyword(s):

Heat Transfer ◽

Numerical Simulation ◽

Heat Exchanger ◽

Design Method ◽

Fluid Velocity ◽

Exchange Process ◽

Three Dimensional ◽

Simulation Method ◽

Physical Parameters ◽

Numerical Result

A calculation method for counter-current type coil-wound heat exchanger is presented for heat exchange process. The numerical simulation method is applied to determine the basic physical parameters of wound bundles. By controlling the inlet fluid velocity varying in coil-wound heat exchanger to program and calculate the iterative process. The calculation data is analyzed by comparison of numerical result and the unit three dimensional pipe bundle model was built. Studies show that the introduction of numerical simulation can simplify the pipe winding process and accelerate the calculation and design of overall configuration in coil-wound heat exchanger. This method can be applied to the physical modeling and heat transfer calculation of pipe bundles in coil wound heat exchanger, program to calculate the complex heat transfer changing with velocity and other parameters, and optimize the overall design and calculation of spiral bundles.

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