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I take advantage of the proposed three-dimensional fracture design analysis software to discrete fracture network model, applied to the horizontal well fracturing segment multibank instance, the optimal formation parameters obtained by fitting the history, the conclusion that the optimal production simulation by every half-length.
The best history matching parameter table Iterative times No-dimensional flow-capacity (Cfd) propant extent (m) resevior permeability (mD) reservior drainable area (k㎡) reservior aspect ratio (X/Y) fracture conductivity,kfwf (mD·m) 3 7.14459 229.6 0.18 0.946756 0.597397 295.231 Using the parameters in Table 1, historical fitting out, assuming the horizontal section length is 836m, fracturing 11 segments, and each segment lengths are equal, then the period length is 76m, the cluster distance is 24m, the value of the input data in many cases cracks, cracks and fixed dimensionless conductivity remains unchanged.
Combining with the production simulation after 5 years of production information table, make support fracture length and the corresponding relationship between cumulative yield curve, can be obtained by analyzing the optimal value.
History matching results with 4 micro-seismic monitoring of fracture length 268.5m big difference, after analyzing the results may be due to the following two points: ①Development status of the micro crack formation cannot be considered in the simulation, so the simulation and micro seismic interpretation has a certain gap. ②Micro earthquake for a collection recording crack signal, and can not fully reflect the final derivative underground sand filling pressure of fracture network.

The conservation equations of mass, momentum and energy time-averaged or spatially-averaged are solved with the Finite Volume Method (FVM), more precisely with the CFD package FLUENT [16–18].
However, for RANS simulations, represents time-averaged mean variables.
On the other hand, the RANS simulations predict a jet with higher spreading in radial direction than the simulation performed with LES.
Wilcox, Turbulence modeling for CFD, 2nd Ed., DCW Industries, La Canada, USA, 2002
Comte, Large-eddy simulations of turbulence, New York, USA, 2005

China Keywords: Absorbing gas; Non-absorbing gas; Free convection; Solar radiation Abstract This paper presents a radiant model based on the radiant resistance analysis theory and the results of numerical simulations of double glass window.
Introduction of CFD model Considering a vertical double glass window heated by solar radiation and higher outdoor air temperature, the paper discusses a window system formed by two parallel glass sheets of 3mm thickness and area, separated by a distance of 8mm and 10mm respectively, filled with two kinds medium, air and CO2 respectively.
To compare the heat transfer due to natural convection and solar radiation, numerical simulations are realized to solve the equation of energy and momentum using the CFD.
The numerical simulation takes into account the physical phenomena in the heat and flow processes and also the real boundary conditions while in normal operation.
Manz, Numerical simulation of heat transfer by natural convection in cavities of facade elements[J], Energy Build, 35 (2003)305–311

By means of numerical simulation, the guide wall shape optimization study, and combining with the engineering practice, this paper proposes a microbend flood guide wall of new type.
In this paper, we can forecast the effect of modified guide wall for Channel’s flow structure adjustment by using the method of numerical simulation research[4].
Reducing the effect of reflux area, and in data simulation showing the superiority.
It make water below the surface of the water to flow, stopped flow sedimentation in approaches, and also led to the current mainstream to stay away from such direction, finally simulation experiments prove that this new type of diversion wall of diversion and rectification effect is quite effective.
References [1] FamengWang, ZongfuFu, Jiacai Lv, Mingming Liu,Model tests on influence of combined construction of sluices and pump stations on estuarine navigationAdvances in Science and Technology of Water Resources (In Chinese),2012（3）：29-31 [2]Yonghai Yu,Hui Xu,Yongguang Cheng,CFD numerical simulation on modification of flow pattern with flow deflector at fore-bay of pumping station.Water resources and hydropower engineering(In Chinese) 2006-9,41-43 [3] JGJ305-2001《the overall lock design specification》In Chinese [4]Xiaoxu Li,,Yuan Zheng,Yuanting Mao,Xi Li, Chao Xue,Based on Fluent pumping station side of the pool rectifier forward numerical simulation and optimization(In Chinese),Water Conservancy Science and Technology and Economy,2011-4,1-2

Today, using Computational Fluid Dynamics (CFD) method, more and more studies have been opened on the flow field in precalciners.
The differences between them are little, indicating the rationality and reliability of simulation results.
Conclusion In this paper, numerical simulation was executed for a full-scale precalciner.
Wang in: Numerical simulation study on gas-particles two-phase flow in pre-calciner.
Communications in Nonlinear Science and Numerical Simulation Vol.11 (2006) p440-451 [6] L.

Simulation Program and vertification A.
The bottom-up approach was adopted in this simulation program.
Fig.4 presents the overall structure of simulation module.
The results of simulation are shown in Table I, and it could be found that the difference between experiment and simulation is very small.
Conroy, "Multiphase CFD Simulations of Solid Propellant Combustion in Gun Systems," in 40th Aerospace Sciences Meeting & Exhibit, Reno, Nevada, 2002

In the present work, we conducted a numerical simulation of flow and sediment transport and deposition in a meandering river.
The objective of this work was to develop a CFD methodology for the analysis of the sediment transport for different longitudinal slope in a meandering river.
The CFD package Fluent 6.2.16 was used for the case study for the effect of meandering river slope on the deposition rate.
Governing equations The basic equations solved in the CFD calculations are those describing the fundamental laws of fluid motion, namely, conservation of mass, momentum and energy.

Wind speed distribution and wind pressure distribution of hill surface at each case were depicted by the simulation results; the obstacle of conducive for wind farms was obtained by comparing flow field distribution of each case.
Numerical Simulation Condition Model selection, the computational domain selection and grid division.
The grid division software has many kinds, such as: Gambit, TGrid, GeoMesh and ICEM-CFD etc.
Because Gambit meshes support better for the numerical simulation software Fluent, the Gambit was choired for meshing [4].
In addition to the ground, other surface into triangular mesh spacing of 100m, surface mesh is finish, the tetrahedral unit grid division on the simulation, grid generation using Tgrid.

Numerical Simulation on Process of Flow and Heat Transfer in Upright Magnesium Reducing Furnace Feng Junxiao1,a, Cheng Qibo1,a and Yu Sijing2,b 1School of Mechanical Engineering, USTB, Beijing, China 2 Zhengzhou Magnesium Science and Technology Co.
Ltd, Henan, China a jxfeng@ustb.edu.cn, b yusijing@163.com Keywords: mathematical model; numerical simulation; upright magnesium reducing furnace; flow field; temperature field Abstract.
And numerical simulation is performed further with the commercial software FLUENT.
In order to study the impact of reducing pot standard on the product cost, the numerical simulation of different standards of reducing pot has been done.
“A Brief Introduction to Fluent-a General Purpose CFD Code,” Journal of Hydrodynamocs, vol.16, 2001, No.2, pp.254-258

The measurements performed with diagnostics available in the facility, provide the boundary conditions to run numerical simulations and to validate mobilization models .
The authors have also the capability to acquire, elaborate and analyze the images of dust mobilized in the chamber during the pressurization thorough optical techniques and, last but not least, they have the skills to perform numerical simulations of different phenomena.
Gaudio, Safety analysis in large volume vacuum systems like tokamak: Experiments and numerical simulation to analyze vacuum ruptures consequences, Adv.
Richetta, “Large eddy simulation of loss of vacuum accident in STARDUST facility,” Fusion Eng.
Richetta, Loss of vacuum accident (LOVA): Comparison of computational fluid dynamics (CFD) flow velocities against experimental data for the model validation, Fusion Eng.