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Through CFD numerical simulation, the flow field characteristics, flutter derivatives and critical flutter speed of origin and tuyere models are obtained.
Through CFD numerical simulation, the flow field characteristics, flutter derivatives and critical flutter speed of different models is obtained.
CFD Simulation To investigate a flutter stability control measure for a fabricated steel truss bridge, a typical cross-section is selected.
And its flutter stability is simulated with CFD method and CFD-ACE+ software technology platform.
Pure Vertical Bending Motion Simulation Results Analysis.

Ins., Wuhan, China, 430064 aza2002@163.com, bemcry@163.com, ckzwhust@gmail.com, dlixianling1983@126.com Keywords: riblet surface, internal flow, drag reduction, CFD.
Computational fluid dynamics (CFD) numerical simulation is adopted to analyze the drag reduction ability of triangular riblet on tube internal flow.
Based on the simulation analysis, the drag reduction mechanism of riblet surface is studied.
A direct numerical simulation of laminar and turbulent flow over riblet- mounted surfaces [J].
Direct numerical simulation of turbulent flow over riblets [J].

With the aid of 3-D CFD simulation, researchers have the means other than optical measurement to thoroughly understand the regularities of fuel-air mixture formation process.
CFD Grid Generation.
The CFD model was created and solved with AVL-FIRE v2008 CFD software package.
Fig. 11 CFD model with new piston head.
With the aid of 3-D CFD simulation, authors found out the possible problems of fuel/air mixing process and reasons of them.

Introduction The flow past a marine propeller is one of the challenging problems in Computational Fluid Dynamics (CFD).
The simulation is carried out in the commercial software STARCCM+.
Bong-Jun Chang [2] employed a finite volume CFD method in conjunction with the standard k-ε turbulence model (Launder & Spalding, 1974) for an unstructured mesh.
Fig. 4 Grid independence test for Kt and Kq Steady analysis The CFD simulation is carried out for steady case with various turbulence models as shown in Table 1.
“Application of CFD to P4119 Propeller”, 22nd ITTC Propeller RANS/Panel Method Workshop, France, 1998

The Laminar Flow Simulation of Variable Diameter GFRP Pipe with Transition Region Yaxuan Wang 1, a, Jing Ji2, b and Shu Zhang 2, c 1College of Engineering Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang, 163319, China 2College of Civil Architecture Engineering Northeast Petroleum University, Daqing, Heilongjiang, 163318, China aE-mail:jijing1977@163.com, bJlqjjdoudou@163.com , cdqzhangshu@126.com Keywords: GFRP, FLOTRAN CFD, Laminar flow, Diversion pipes, ANSYS finite element.
A typical analysis of FLOTRAN CFD includes seven steps: ①The area of problem analysis must be clear; ②The state of the fluid should be defined; ③The finite element analysis grid should be generated accurately; ④Boundary conditions should be exerted on the model; ⑤ The analysis parameters of FLOTRAN CFD are set; ⑥Solving; Reading Results in Post-processing.
The analysis type is designated for FLOTRAN CFD.
Fig.3 Boundary constraint of finite element model for P-2 pipe Analysis of Finite Element Results Figure 4 shows the velocity distribution of four diversion pipes gotten by the finite element simulation.
Conclusions It adopts the FLOTRAN CFD model in ANSYS finite element software to analyze laminar flow of four diversion pipes with transition zone, introduces the process of the finite element analysis in detail, and obtains velocity distributions of four diversion pipes.

The combustion process and emission characteristics of DI diesel were calculated using CFD software – FIRE.
In addition to the traditional test methods, numerical simulation the combustion process of internal combustion engine based on experiment is also a powerful measure [2].
Software FIRE is an engine CFD software developed by AVL company, it is believed as the best software in the world in analyzing engine model and solving engine problems which are related to CFD [4].
In numerical simulation of chemomotiveforce reaction process, average chemical reaction rate is the center issue.
CFD Studies of Combustion and In-Cylinder Soot Trends in a DI Diesel Engine – Comparison to Direct Photography Studies, SAE 2000-01-1889, 2000 [3] Borghi R, Delamare L, Gonzales M.

CFD software is used for simulation of the five different models of DSF.
The skins can raise the air temperature during summer due to high temperature outside, therefore it is necessary to thoroughly design and simulate using a model with CFD simulation.
Building Simulation Wind speed contour (m/s) Temperature Contour (Kelvin) Fasad+grill & panel (Open Cavity) Fasade + Grill (Open Cavity) Ventilation Pattern (Open Cavity) Ventilation Clear (Open Cavity) Close Cavity Figure 2: Comparison of CFD simulation results in five models DSF; contours of wind speed and temperature contours, shows that the patterned facade with an open cavity is the smallest, and that the two facades grill & panels, 3.fasad air grill, 4 plain facade ventilation, 5 closed.
Results and Discussion Comparison of 'CFD’ Simulation Results Heat transfer Variations on DSF ventilation cause a different temperature condition inside the building.
CFD simulations on various types of DSF are showed different relationships between air flow in the DSF cavity and air temperature inside the building.

In this paper, the passing ability of the detector in the vertical segment of a pipe was studied using CFD simulations.
In this paper, CFD (Computational Fluid Dynamics) methode is used to calculate the force to the detector by the pipeflow.
Numerical model and simulation results Problem statement.
Simulation results and analysis.
Polidori, Turbulence Model Choice for the Calculation of Drag Forces When Using the CFD Method, Journal of Biomechanics. 43 (2010) 405-11 [7] B.

Especially since the high speed computer appeared, study of numerical simulation appears more realistic.
This article mainly discuss the application of CFD software FLUENT in goaf gas seepage field.
CFD software can be regarded as numerical simulation for the flow under the control of a basic equation (mass conservation equation, momentum conservation equation, energy conservation equation, components mass conservation equation).
The simulation for basic situation model.
While CFD simulation can help to formulate rational test plan, which could reduce the manpower investment in the test, and revision useful information for designing scheme and the formulation of new methods.

The distribution performance of original style was studied with CFD numerical simulation method and an improved distributor was proposed in this paper.
Structure schematic diagram of two distributors Numerical procedure A commercial CFD code Ansys14.5 provided by Asia-Pacific was used to calculate.
The unstructured tetrahedral grids were generated by the ICEM CFD and the boundary layer near the wall was set.
When residual value was less than1.0×10-5, the simulation was converged.
Numerical simulation of distributor in a hydrotreating reactor.