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As a new method of fluid flow , computational fluid dynamics (Computational Fluid Dynamics, CFD) in various industrial areas to be more widely used, at present , CFD methods have started to become enlarged engineering plant optimization and quantitative design tools.
We can use existing models and CFD software flow jet pump the fluid simulation to simulate and study the different working media , was pumping gas state, the pump outlet conditions , gas mixing conditions and other factors on the jet pump performance effects and in-depth analysis of fluid flow within the jet pump status , according to the simulation results , and then the steam jet pump design optimization.
Pianthong.CFD analysis of ejector in a combined ejector cooling system[J].
Validation of the CFD results[J].
Investigation on hydrodynamics and mass transfer characteristics of a gas-liquid ejector using three-dimensional CFD modeling[J].

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.

All simulations were carried out using the Ansys CFX ® commercial code.
The CFD numerical package was used for the present calculations.
For the simulation, time was optimized, and the time steps were modified during the simulation.
Hydrodynamcs of Oil-Water with Leakage by CFD.
Sarmento, Multiphase Flow on Curved Conections Coupled to Pipe With Leaks: Modeling and Simulation.

The application of CFD to complex problems has a big importance in providing engineering solutions no mattering the size of project.
The advance in the power of computer processing allows that complex equations associated with CFD can be solved in lower timescales.
Simulations were done in two stages.
The maximum simulation time was 20 seconds with a time step of 0,01s.
The simulation occurred for around 2 hours and 20 minutes for the Case 1 and around 22 hours for Case 2.

A three dimensional computational simulation was done using unsteady green-gauss cell based solver for adopting the combustion simulation.
The performance of single phase detonation engine using divergent nozzle at the exit section of detonation tube was studied using CFD [6].
The theory and numerical simulation of deflagration flame acceleration in an obstacles channel was studied by Damir Valiev et. al.
The simulation predictions show that turbulence production increases with increasing obstacle BR [16].
The hydrogen and air initial inlet temperature are 298 K and 1242 K and Mach number are 1.45 and 1.12 for computational simulation.

Our design was then analysed by using computerised fluid dynamic (CFD) simulation software called STAR-CCM+ which is widely used in automotive simulation.
Based on simulation, we can see that the velocity and pressure profile is distributed differently on entire body.
Simulation of chasis strength was done by using SimDesigner V5R14.
First, based on CFD simulation shown, we manage to get a desirable result in terms of aerodynamic characteristics with Cd = 0.31.
Second, using SIMDesigner simulation on chassis strength, we get maximum bending strength 179 MPa with maximum displacement of 0.3088 mm.

Design and Numerical Simulation of Convergent Divergent Nozzle Ramji V1, Mukesh R2, Inamul Hasan3 1 Assistant Professor, ACS College of Engineering, Bangalore, India. 2 Associate Professor, ACS College of Engineering, Bangalore, India. 3Assistant Professor, ACS College of Engineering, Bangalore, India. 1ramji149@yahoo.com, 2vsmprm@gmail.com, aero.inamulhasan@gmail.com Keywords: De Laval Nozzle, Hypersonic, Method of Characteristics, Contour Nozzle, Turbulence, CFD analysis Abstract.
The obtained contours were results obtained by the simulation in fluent and the values of mach number at the exit obtained through computational simulation was found to be close to the theoretical values and the small discrepancy in values of simulation for the viscous flows can be explained by the isentropic assumptions involved in the theoretical values.
Govinda Rao, Cfd Analysis of Convergent- Divergent Supersonic Nozzle, IJCER , Vol 3 Issue 5, May 2013 [9] Madhu B P , Vijaya Raghu B, Numerical Simulation of Supersonic Expansion in Conical and Contour Nozzle, IJERT, Vol. 3 Issue 6, June - 2014 [10] Gutti Rajeswara Rao, U.S.
Lakshman, Flow Analysis in a Convergent-Divergent Nozzle Using CFD, IJRME Vol 1 Issue 2, October- December 2013 [11] Ekanayake, E.
Sudharshani, Numerical Simulation of a Convergent Divergent Supersonic Nozzle Flow, RMIT University, Melbourne, Australia.

The simulation results are in good agreement with experimental results.
With the development of CFD software, more and more CFD software are utilized to optimized the design of SCR system[3-8].
In this paper, CFD modeling is used to numerically simulate the flow field and NH3 distribution of 100MW coal-fired power station.
NH3 concentration distribution of first catalyst bed inlet Comparison Between CFD and Test Results Cold experimental results are shown as tab.1 and tab.2.
Simulation results and experimental results are in good agreement.

CFD simulation technology can predict fan performance，and reduce the number of trials and sample programs, which provide the basis for fan design improvement.
This article focuses on the simulation of the aerodynamic performance of the fan, softwareFluent was adopted to establish CFD model of the axial fan aerodynamic performance.
The grid generated in ICEM CFD.
In the CFD calculation of fan simulation, the pressure value at Pe3 in Fig. 1 should be the pressure of inlet, which will weak the impact of rectifier grille and improve the accuracy of model.
(4) In the CFD calculation of fan simulation, the pressure value at Pe3 in Fig. 1 should be the pressure of inlet, which will weak the impact of rectifier grille and improve the accuracy of model.