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Using ANSYS-FLOTRAN CFD software, the finite element simulation is conducted by a series of procedures, such as two-dimensional model building of fluidic gyroscope, meshing, loads applying and equation solving, we calculate the two dimensional airflow distribution of rectangle chamber and streamline chamber in sensitive element of fluidic gyroscope.
In order to reveal the flow field distribution of fluidic gyroscope sensitive element, to improve the structure of sensitive element, In this paper, we use the FLOTRAN CFD analysis of ANSYS software to have a comparative study in the two different sensitive cavity structures, so as to attempt to find a better structure of sensitive element chamber which can improve the resolution of fluidic gyroscope.
(a) Rectangular cavity (b) Streamlined cavity Fig. 2 Two-dimensional simplified model of sensitive cavity of two structures Solve with finite element method The FLOTRAN CFD analysis of ANSYS software is an advanced tools used to study two dimensional and three dimensional flow fields, the simulation typically comprises modeling, loading and solving [3-4].
Select FLOTRAN CFD analysis of ANSYS software.
Wang: Numerical simulation of practical engineering in ANSYS (Northwestern Polytechnical University Press, China 1999)

The preheating period of honeycomb was simulated by means of computational fluid dynamics (CFD) software; the outlet temperature, temperature at lengthways of gas, and temperature at lengthways of honeycomb were obtained.
In this work, a three-dimensional numerical simulation model for a honeycomb regenerator used for a HiTAC burner was developed.
In the numerical simulation the ceramic honeycomb is square channel, of which cross-section is shown in Fig.1.
Results and analyses For a 3-D numerical simulation model, the structure and meshes were constructed by GAMBIT, and then numerical solution was obtained from the commercially available CFD code FLUENT to investigate the thermal dynamic behavior of the honeycomb regenerator starting-up process.
However the simulation did not consider this factor, there might be somewhat error between the actual value and the calculated value of the honeycomb wall temperature.

Using ANSYS-FLOTRAN CFD software, finite element simulation was conducted by a series of procedures, such as two-dimensional model building, meshing, applied loads and equation solving, we calculated the flow distribution in the sensitive component of fluidic gyroscope with single nozzle and nozzle array.
Fig. 2 Nozzle schematic diagram of fluidic gyro FLOTRAN CFD analysis capabilities in ANSYS is an advanced tool which is used to analyze two-dimensional and three-dimensional fluid flow distribution, and also can be used to simulate the movement of airflow in the sensitive chamber [4].
This simulation usually consists of three steps: modeling, applied load and calculation
Table 2 Airflow velocity at the thermal resistor wires with nozzle array structure ωj(rad/s) v m/s) 0 0.01 0．05 0.25 L R L R L R L R vX -0.17080E-01 0.17081E-01 -0.17089E-01 0.17071E-01 -0.17127E-01 0.17034E-01 -0.17314E-01 0.16847E-01 vy 0.40811 0.40811 0.40810 0.40813 0.40802 0.40820 0.40766 0.40856 1.25 6.25 12.5 20 vX -0.18245E-01 0.15911E-01 -0.22817E-01 0.11213E-01 -0.28421E-01 0.52058E-02 -0.34889E-01 -0.19745E-02 vy 0.40586 0.41036 0.39684 0.41923 0.38548 0.43012 0.37197 0.44269 Conclusions Using ANSYS-FLOTRAN CFD software, finite element simulation was conducted by a series of procedures, such as two-dimensional model building of fluidic gyro, meshing, applied loads and equation solving, we calculated the airflow distribution in the sensitive component of fluidic gyro with single nozzle and nozzle array.
[4]Guoqiang Wang: Numerical Simulation Technology of Practical Engineering and its Practice (Northwestern Polytechnical University Press, Xi’an 1999).

Based on the theory of two-phase fluid, CFD is employed to simulate the snow drifting effect under the wind load.
The numerical simulation of snow drifting belongs to the gas-solid two-phase fluid issues.
The CFD simulation adopts the mixture model.
Computational fluid dynamics analysis-principle and application of CFD software[M].
Tow-equation model for numerical simulation on snow drifting[J].

Simulation results allow to predict the optimum number of induced fractures.
Results A series of simulation studies were conducted to analyse the production performance of hydraulically fractured horizontal wells.
We define the dimensionless compressibility CFD which is: fres f xk wk CFD ⋅ ⋅ = kf : Fracture permeability.
When CFD = 300, the optimal number of fractures is10 and 8 will be recommended for CFD = 100.
Our simulations have shown that the optimal number of fractures is even smaller as the conductivity is lower.

We have used the 2D Finite Element Method for calculating the characteristics of brushless DC (BLDC) motor, computing fluid mechanics (CFD) as numerical analysis for blade design.
We have used the 2D Finite Element Method for calculating the characteristics of brushless DC (BLDC) motor, computing fluid mechanics (CFD) as numerical analysis for blade design.
The blade's performance in design step can achieve computing fluid mechanics (CFD) as numerical analysis.
After the boundary conditions are specified and the solution models are selected, the iterations are performed in SC/Tetra (commercial CFD simulation software).
The fan blade's performance in design step could achieve computing fluid mechanics (CFD) as numerical analysis.

Using ANSYS program, the finite element simulation based on thermoelectric coupling is conducted by a series of procedures, such as three-dimensional model building of airflow level posture sensor according to the actual size of the proportion, network modifying, loads applying and equation solving.
The numerical results show that compared with two-dimensional modeling, the simulation result of three-dimensional modeling and thermoelectric analysis methods are more comprehensive and accurate, which provides more reliable basis for practical research of the airflow level posture sensor.
Selection of analyzing types: the choice of FLOTRAN CFD analysis capabilities of ANSYS software. 1) Definition of unit types: choice is FLUID142 unit with shape of four nodes.
Observing temperature and flow field distribution in closed chamber requires the use of section observation function of ANSYS-FLOTRAN CFD software, through the translation of coordinates inside the cavity observe corresponding temperature field and velocity vector field.
[3] Guoqiang.Wang, “Numerical simulation and practice on ANSYS,” [M].

Fluid-solid Coupling with STAR-CCM+ STAR-CCM+ is a CFD software that has been used widely in engineering.And it has more convenient pretreatment function.
By using STAR-CCM+, the heat transfer conditions between cylinder head and water jacket in coupling transfer simulation process can be got by the software based on the flow conditions of cooling water in real time, thus lowers the solving difficulty of boundary conditions, makes simulation process fit actual working conditions of engine.
Consequently, the development costs and risks are lowered effectively in the early stages of engine design, CFD Simulation Process of Cylinder Head 3-D Model Material of cylinder head of the high-speed gasoline engine is casting aluminum alloy.
Automotive Diesel Engine Water Jacket CFD Analysis, J.
The numerical simulation and optimiza of internal combustion engine operating process, M .

Using ANSYS-FLOTRAN CFD software, the finite element simulation was conducted by a series of procedures, such as two-dimensional model building of fluidic gyro, meshing, loads applying and equation solving, we calculated the airflow distribution in sensitive chamber of fluidic gyro with different outlet apertures.
Fig. 1 Operation principle of fluidic gyro Solution of the Finite Element Method FLOTRAN CFD analysis capabilities in ANSYS is an advanced tool which is used to analyze two-dimensional and three-dimensional fluid flow distribution, and also can be used to simulate the movement of airflow in the sensitive chamber.
This simulation usually consists of three steps: modeling, applied load and calculation
(a) dc =1mm (b) dc =2mm (c) dc =3mm Fig. 3 Relative pressure distribution in the sensitive chamber with different outlet diameters Conclusions Using ANSYS-FLOTRAN CFD software, finite element simulation was conducted by a series of procedures, such as two-dimensional model building of fluidic gyro, meshing, applied loads and equation solving, we calculated the flow distribution in sensitive chamber of fluidic gyro with different outlet apertures.

A Research on Separation mechanism of Cylindrical Hydrocyclone Xiaojiang Lu, Xiang Yang College of Mechanical Engineering, Tianjin University of Science and Technology, Tianjin，300222，China xiaojianglu@tust.edu.cn, xiangyang@tust.edu.cn Key Words：Cylindrical Hydrocyclone; separation; numerical simulation; geometric parameters.
Using the Fiber Quantity Analyzer (FQA) for analysis of the paper pulp fiber moving in the Cylindrical Hydrocyclone, making use of the way of Limited Element Analysis and Calculation Fluid Dynamic for the numerical simulation of the velocity distribution of moving process.
Experiment data and numerical simulation Experiment data .
Think that the wall can't permeate, the wall moving velocity is zero, making use of the square distance in function in wall to compute the wall shear stress, the kinetic energy of turbulent flow, the spreads rate of turbulent flow near wall etc.. 2)The mathematics model establishes To the incompressible Newtonian fluid, the cylindrical coordinate equation of three-dimensional flow can written as： （1） （2） （3） 3)CFD numerical simulation Combine above mathematics model with experiment data, the CFD method was used to simulate velocity distribution in hydrocyclon, results obtained show as figure 1, and the separation efficiency curve such as figure 2 show.
Simulation of non-Newtonian flow in a hydrocyclone [J].