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Aerodynamic characteristics of the wing NACA5312 in ground effect are investigated with the numerical simulation method.
The N-S equations and the k-ε turbulence model are solved by the finite volume method in CFD software.
Model and Grid The shape of three-dimensional WIG is generally complex, and the simulation of ground effect also needs to consider the interaction between ground and aircraft, so the numerical simulation of the computational grid is very complex and the number is very large[5].
Numerical simulation of enhancing aerodynamic characteristics of WIG by modified airfoils.
Numerical Simulation on 3D Multi-element Wings in Ground Effect.

Based on the heat and mass transfer theory and characteristics of the CFD software, a three-dimensional numerical simulation platform had been developed to study the thermal performance in a natural draft wet cooling tower.
Therefore, a three-dimensional numerical simulation platform was developed to study the heat exchange and flow situation of cooling tower.
It uses three dimensional numerical simulation platform is used to simulate the two group working simulations.
The computing values of the simulation platform are found to be in good agreement with the design data.
The simulation platform could provide forceful support to the research of cooling tower.

Basisning on two-phase flow theory and using the FLUENT fluid analysis software to do numerical simulation in High pressure abrasive water jet.
(2) The simulation results shows that: Increasing the density of the fluid has obvious improvement effect on the velocity and cutting forces.
Computational fluid dynamics: The principle and application of CFD software [M].
Structural parameters of jet nozzle affect jet flow field simulation and research [J].Coal mine machinery,2012, 63（03）:1003-0794
Simulation and Analysis for Abrasive Water Jet Cutting Process Parameters[J].

Numerical simulation method was adopted in this paper to investigate the effect of fin arrangement.
The fins in Fig.4 were simplified to facilitate the numerical simulations which would result in the error for the simulation results.
Numerical simulation results This paper carried out the performance simulations using CFD code Fluent.
And for the two fin arrangements y direction and z direction, the simulation results were obtained and contrasted.
Simulation and performance evaluation of finned-tube CO2 gas coolers for refrigeration systems [J].

A thorough assessment of performance was made possible by using rapid-prototype models and numerical simulation and the intake port steady flow.
In this paper, use of AVL Fire, unite the modern method of numerical simulation and the intake port steady flow, in a new diesel intake port example, carry out forecast design.
Flow coefficient is a very important parameter, because of its veracity , the design basis of the no swirl vertical intake port, three-dimensional model, CFD model, mathematics model and the project of the intake port steady flow, the simulate results are fund very closed with experimental results. we can prove the feasibility of the forecast design of diesel engine intake port based on numerical simulation.
Further analysis of other flow parameters also be got, and provide a reliable basis for simulation.
Figure 3: Directed port CFD-model Figure 4: Measured v Computed Flow coefficient The DoE results were analyzed using multiple regression to determine the most significant parameters and interactions.

These models often limit the accuracy of CFD simulations.
The simulations were performed using the CFX software from ANSYS, Inc.
Figure 1 Discrete hole geometry Grid Distribution Using ANSYS ICEM-CFD, an unstructured tetrahedral grid is applied to the hole computation domain.
In the areas where the disparity in the flow parameter is high, the fine grids are used for accurate simulation.
Numerical simulation of film cooling effectiveness in a rotating blade at high blowing ratios.

The simulation model shows a good agreement with experimental results.
The simulation analysis of 4H-SiC epitaxial growth is performed using commercially available CFD-ACE+ software and its add-on software CVDSim SiC Edition.
It confirms the accuracy of the simulation model.
experiment 1000 rpm simulation 1000 rpm simulation 50 rpm Slope 0.5 Growth rate µ P1/2 Fig. 3 Relation between epitaxial growth rate and reactor pressure.
simulation 1000 rpm simulation 50 rpm experiment 50 rpm experiment 1000 rpm Fig. 4 Distribution of epitaxial growth rate in a radial direction for a 150 mm diameter wafer.

The impregnation stage is simulated by means of a CFD multiphase model, evaluating the pressure and velocity field in the liquid resin.
Finally, contact conditions, stresses and strains are derived applying computational simulation and analytical models, in order to predict the final pulling force.
The inherent literature pointed out actual contributes, in terms of process knowledge, achievable by means of process modelling and simulations [3-7].
The impregnation stage is simulated by means of a CFD multiphase model, evaluating the pressure and velocity field in the liquid resin.
Results and Discussions The simulation of the pultrusion process for a UD fiber glass/polyester composite rod with circular cross section is performed.

Simulation results indicate that NOx is formed mainly in the high temperature region near the boiler inlet where the mixing caused by swirler is strong.
Nguyen et al. [4] studied the NOx controlling in a municipal solid waste incinerator by SNCR using urea-water solution by means of computational fluid dynamics (CFD) simulation, which is validated with on-site experiments.
At normalized stoichiometric ratio (NSR) = 1.8, 70% NO reduction is obtained from on-site experiments, while 66% NO reduction is from the CFD simulation.
For physical models, by considering the accuracy and stability of the models and by referring to the evaluation of other researchers, the standard k-ε Model, P-1 radiation model, eddy-dissipation-concept model [7], and the Ostberg and Dam-Johansen’s two-step scheme [8] are adopted for turbulence, radiation, combustion and SNCR simulations, respectively.
Simulation results indicate that NOx is formed mainly in the high temperature region near the boiler inlet where the mixing caused by swirler is strong.

The author analyzed the deformation characteristics and the closed configuration of the self-supporting cracks in complex stress state through numerical simulation method, established a self-supporting crack wall combination indoor preparation methods and conductivity test methods, and finally established water fracturing reservoir screening methods on the basis of dimensionless conductivity.
(2) In which, Cfd is dimensionless fracture conductivity; Kf is formation permeability, μm2; K is formation fracture permeability, μm2; Lf is fracture length, m; Wf is fracture width, m.
Considering the effect of fracture pollution, optimized Cfd is 1.26.
Table 1 Dimensionless conductivity Cfd Well number Depth (m) Young's modulus (MPa) Core permeability (10-3μm2) Effective closure pressure (MPa) Fracture length (m) Flow capacity (μm2-cm) If appropriate gu708 2161 5453 0.18 30 160 20.68 7.18 yes chao103 984 4546 0.26 16 120 14.82 4.75 yes xing11 1112 4701 21.25 15 28 7.21 0.12 no yuan264 1647 7140 0.085 23 160 26.62 19.57 yes Table 2 shows, high elastic modulus, low permeability reservoir as gu708, chao103 and yuan264 are suitable for water fracturing.