Numerical Simulation of Cathodic Protection Potential Distribution of Coastal Power Plant Condenser Based on Physical Scale Model

2014 ◽  
Vol 644-650 ◽  
pp. 3734-3738
Author(s):  
Peng Zhang ◽  
Juan Zhao ◽  
Gui Wang
Keyword(s):  
Numerical Simulation ◽  
Power Plant ◽  
Cathodic Protection ◽  
Potential Distribution ◽  
Simulation Analysis ◽  
Simulation Software ◽  
Scale Model ◽  
Physical Scale ◽  
Finite Element Numerical Simulation ◽  
Protection Potential

Finite element numerical simulation software was used for numerical simulation analysis of cathodic protection of coastal power plant condenser based on physical scale model. The effects of location, size and number of auxiliary anode on the cathodic protection potential distribution of the condenser were studied, which would predict cathodic protection result of the condenser and provide reasonable design for cathodic protection of the condenser.

Numerical Simulation Analysis of Smoke Control and Flow for Large Building Fire

2014 ◽  
Vol 608-609 ◽  
pp. 61-65
Author(s):  
Da You ◽  
Xiao Zhi Wang ◽  
Wen Jiang Chen ◽  
Gui Xiang Wu
Keyword(s):  
Numerical Simulation ◽  
Simulation Analysis ◽  
Simulation Software ◽  
Double Precision ◽  
Actual Situation ◽  
Smoke Control ◽  
Fire Temperature ◽  
Building Fire ◽  
Engineering Software ◽  
Large Building

In fluid numerical simulation calculation, FLUENT is one of the most commonly used engineering software. By the way of pressure velocity coupling, FLUENT can solve the flow field, and use the finite volume method to speed up the convergence. In order to improve the calculation accuracy, FLUENT is divided into single precision and double precision to meet the need of practical engineering. In this paper, by using FLUENT numerical simulation software, combined with UDF programming, we analyze the temperature and smoke distribution when large building fire occurs. The GAMBIT software is used for the numerical modeling, and we use Tecplot software to carry out the post processing of results. Through numerical simulation, the fire temperature value reaches 1050K without wind, while with wind the temperature is 1030K, , which is consistent with the actual situation. In the absence of ventilation condition, concentration is 0.0112; under the condition of ventilation concentration is 0.0052, which is consistent with the actual situation. Therefore in the building fire safety, the first thing to consider is ventilation, which can reduce the fire temperature and concentration and security personnel safe evacuation.

Numerical Simulation Analysis on Cold Closed-Die Forging of Differential Satellite Gear in Car

2008 ◽  
Vol 575-578 ◽  
pp. 517-524 ◽  
Author(s):  
Yao Zong Zhang ◽  
Jian Bo Huang ◽  
Xue Lin ◽  
Quan Shui Fang
Keyword(s):  
Numerical Simulation ◽  
Simulation Analysis ◽  
Simulation Software ◽  
Bevel Gear ◽  
Cold Forging ◽  
Forging Process ◽  
Die Forging ◽  
Closed Die Forging ◽  
Forming Defects ◽  
Deform 3D

The cold closed-die forging process of the gear is a kind of new technique of the precise forming of gear in recent years. In this paper, the cold closed-die forging process of differential satellite gear in car was analyzed through numerical simulation method. Forming mold was designed with Pro/E Wildfire2.0 which included four components : upper punch, lower punch, tooth shape upper die and lower die for Normal Cone. The three-dimensional models of satellite bevel gear mould were built and imported into numerical simulation software DEFORM-3D. Because the gear has the uniform circumferential features, in order to save time and improve the accuracy, only one tooth was simulated, and the full simulation outcome of 10 teeth was mirrored from this one. Through the numerical simulation analysis of DEFORM-3D, the instantaneous deformation and stress filed were gained. Forming defects were forecasted and the cold closed-die forging rule for satellite gear used in car was obtained which can provide effective references for no-flash cold forging process of planet bevel gear and the mold design.

Study on Optimization of Numerical Simulation for Smooth Blasting Parameters in Xishimen Iron Mine

2014 ◽  
Vol 529 ◽  
pp. 605-610 ◽  
Author(s):  
Jian Dong Qi ◽  
Pei Wang ◽  
Yong Tao Gao ◽  
Zhong An Jiang
Keyword(s):  
Numerical Simulation ◽  
Mechanical Property ◽  
Finite Element ◽  
Rock Avalanche ◽  
Simulation Software ◽  
Surrounding Rock ◽  
Iron Mine ◽  
Finite Element Numerical Simulation ◽  
Smooth Blasting

In order to make normal rock avalanche but not have significant impact on other parts of surrounding rock and produce evident deformation in the process of blasting heading, the basic mechanical property of rocks in Xishimen Iron Mine was taken as example to analyze. The process of coupling charge blasting in the surrounding holes of smooth blasting was simulated by applying the finite element numerical simulation software ANSYS/ LS-DYNA. The result shows that the surrounding rock has smallest stress and spall normally when borehole spacing of surrounding holes is 0.6m, thus boosting the efficiency of smooth blasting.

IGW Groundwater Numerical Simulation Software in Power Plant Prediction of Groundwater Contamination

2014 ◽  
Vol 955-959 ◽  
pp. 3225-3230
Author(s):  
Yu Jie Liu ◽  
Hui Cao ◽  
Qiang An ◽  
De Chang Xie ◽  
Ning Qiu Huang
Keyword(s):  
Numerical Simulation ◽  
Mathematical Model ◽  
Power Plant ◽  
Groundwater Contamination ◽  
Groundwater Resources ◽  
Simulation Software ◽  
Groundwater Exploitation ◽  
Geological Conditions ◽  
The Mathematical Model ◽  
Standard Software

Given the increasing groundwater exploitation, an attempt is enforced to establish the hydro geological conceptual model of this area. This carries on the numerical simulation of groundwater flow by using the IGW, which is known as the international standard software. The mathematical model established in this paper has reflected the local practical hydro geological conditions and can be used to predict and manage groundwater resources.

Application of Numerical Simulation in the Analysis of Water Supply Stability of Power Plant

2014 ◽  
Vol 955-959 ◽  
pp. 3442-3447 ◽  
Author(s):  
You Ping Zou ◽  
Lei Li
Keyword(s):  
Numerical Simulation ◽  
Power Plant ◽  
Water Supply ◽  
Coal Mine ◽  
Large Diameter ◽  
Simulation Software ◽  
Water Inflow ◽  
Plant Water ◽  
Visual Modflow ◽  
Hydrogeological Conditions

Currently, the mine water inflow is often forecasted by using the large diameter well method, but under complicated hydrogeological conditions where Dupuit well flow formula is not suitable, the said method is not applicable. The paper takes an example of the water inflow forecast of Chaokewula Coal Mine and discusses the solution of adopting the numerical simulation software Visual Modflow: the simulation scope is defined by analyzing the hydrogeological conditions of Chaokewula Coal Mine to set a mathematical model that fits the actual situation. The model can be identified and verified based on the set model boundary conditions, model spatial discretization, initial conditions and simulation period. Forecast the water inflow of each working face in 30 years by using the underground water numerical simulation software Visual MODFLOW so as to provide a basis for the stability estimation of the mines power plant water supply. Keywords: Numerical Simulation, Water Inflow, Power Plant Water Supply

Monitoring Measurement of Vehicular Tunnels and Finite Element Numerical Simulation Analysis

2012 ◽  
Vol 204-208 ◽  
pp. 2832-2836
Author(s):  
Lei Chen ◽  
Lei Wang ◽  
Lin Zhang
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Comparative Analysis ◽  
Linear Regression ◽  
Simulation Analysis ◽  
Field Monitoring ◽  
Monitoring Data ◽  
Finite Element Numerical Simulation ◽  
Simulation Results

The vault settlement, the horizontal convergence of Fangdoushan tunnel are monitored and measured. The changing curves with time are drawn; while the data of convergence measurement is analyzed with linear regression. The whole constructing process is simulated to analyze based on FLAC3D. The results of comparative analysis of the data from field monitoring and the data from numerical simulation shows that the simulation results accord well with the actual monitoring data, which will furthermore optimize both the design and the scientific construction

Finite Element Numerical Simulation Analysis on Deformation of Adjacent Building with Shallow Foundation due to Excavation

2013 ◽  
Vol 353-356 ◽  
pp. 403-406
Author(s):  
Yong Kang Yang ◽  
Xiao Yuan Li ◽  
Wu Yang ◽  
Chun Yan Feng
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Simulation Analysis ◽  
Horizontal Displacement ◽  
Element Model ◽  
Vertical Displacement ◽  
Shallow Foundation ◽  
Foundation Pit ◽  
Adjacent Building ◽  
Finite Element Numerical Simulation

Based on deformation of adjacent building with shallow foundation of foundation pit excavation, Midas GTS is adopted to establish the finite element model. Through the numerical simulation, the maximum horizontal and vertical displacement in different conditions, Influence of different SMW pile stiffness and influence of different anchor position are analyzed. The results show that (1) horizontal deformation of SMW pile is decreased at the anchor construction; (2) compared with maximum horizontal displacement of SMW pile with 25a25b28a, the maximum horizontal displacement of SMW pile with 28b is increased by 50.9, 43.3, 11.5% respectively; (3) compared with the second anchor at 1.5, 3.5m, the horizontal displacement of adjacent building is minimal by the second anchor at 2.5m.

Fluid-Solid Coupling Numerical Simulation Analysis of Impermeable Rock Mining Seam Floor Failure

2014 ◽  
Vol 1010-1012 ◽  
pp. 1527-1530
Author(s):  
Chun Jie Song ◽  
Cheng Fan
Keyword(s):  
Numerical Simulation ◽  
Simulation Analysis ◽  
Water Inrush ◽  
Three Dimensional ◽  
Deep Understanding ◽  
Simulation Method ◽  
Relevant Information ◽  
Simulation Software ◽  
Pressurized Water ◽  
Floor Failure

Based on a deep understanding of FLAC 3D numerical simulation software and the solid-liquid coupling theory and calculation method, this paper established a mining three-dimensional mechanical model under the pressurized water .Using the numerical simulation method, this paper systematically analysis deformation Laws of stress distribution of mining floor, bottom stress, its plastic zone and floor failure depth. By analyzing water inrush flow-solid coupling seepage problem under the conditions of coal mining, and compares with relevant information, verify the rationality of the existing theories and engineering measures, provide a theoretical basis for seeking security and economic exploitation of technical measures.

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