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With the Computational Fluid Dynamics analysis techniques become more sophisticated, the study on the application for explosion based on CFD have increasingly gained wide attention in industry and academia.
P.Hoorelbeke et al. got a summary analysis for the commonly used in explosion risk assessment techniques, and gave the latest research on risk assessment of explosion using CFD technology [9].
However, there is only a little study on numerical simulation model of explosion mitigation with water spray.
The total size of simulation is 100m × 80m × 40m.
Shapes of the equipment were modified according to the need for simulation.

In order to research the law of chamber shape’s influencing on Axial Force in Hydrodynamic Coupling, flow field and axial force are numeric simulated at different chamber shapes in full filling rate by using separation solver, realizable k~ε model and PISO algorithm with CFD.
Common Chamber Shape of Variable Speed Hydrodynamic Coupling Simulation Model of Variable Speed Hydrodynamic Coupling Computational Domain.
Simulation Results Analysis.
Simulation Results Analysis Axial force of different type hydrodynamic coupling.
“Design of Variable Speed High- power Hydrodynamic Coupling Based on CFD”.

Batina developed an explicit meshless method[1] based on least-squares curve fits and introduced the new method into the practical computation for CFD in 1993.
Therefore, will be set to a value, if. 4 Numerical simulation results and analysis AIAA organized drag prediction conferences to evaluate calculation accuracy of aircraft drag prediction in CFD from 2001 to 2009 for four times.
Numerical simulation of the wing-body configuration is performed by a number of specialized research institutions and universities, including NASA, DLR, ETC., with several well-known CFD software.
Gridless method for the simulation of transonic and supersonic flows.
Application of meshless method in numerical simulation of muzzle flow field.

Research progress of EAHE all over the world  Theoretical and simulation study.
The temperature field superposition method was adopted during the simulation.
Bhutta et al. [8] introduced the application of CFD technology in the direction of simulation.It was clear that CFD can simulate well all kinds of heat transfer performance of EAHE system.
At the same time, they used the CFD technology to simulate the soil temperature field of the soil around the earth to air heat exchanger.
[15] Song Ling, Zhu Yingxin, Simulation study on cooling potential of multi-tube earth-air tunnels, J.

Study on the Numerical Simulation of Surface Flow and Heat Transfer in Inclined Wave Fin-and -tube Heat Exchanger Jun Zhai1, a, Meng Qin2,b and Fengguo Liu2,c 1North China Municipal Engineering Design & Research Institute, China 2TiaJin Institute of Urban Construction, China aZhaijun@chinagas.com.cn, btjcjqm@163.com, clfg_tj@126.com Keywords: Numerical simulation, Wave fin-and-tube, Heat transfer enhancement Abstract.
With the CFD calculation software FLUENT, numerical simulation has been conducted to study the surface flow and heat transfer in inclined wave fin-and-tube heat exchanger, including uniform angle wave fin and inclined increase-angle wave fin.
He et al. [2] performed 3D Numerical simulations on laminar heat transfer and fluid flow of plate fin-and-tube heat exchanger.The results showed that the enhancement of the convective heat transfer is inherently associated with the variation of the intersection angle.
Fig. 5 Curve between speed and heat transfer Fig. 6 Curve between speed and pressure drop Conclusions (1)Uniform angle wave fin and inclined increase-angle wave fin are numerically simulated with CFD.

This research paper presents the CFD analysis of oscillating airfoil during pitch cycle.
Density based implicit solver is used for both RANS and LES simulations with SA and K-ω SST turbulence modeling.
For turbulent model the steady state simulations are performed.
During unsteady simulation mesh is dynamics during pitch cycle and it oscillates at 0.25% of chord.
Simulation of Flow about Flapping Airfoils using Finite Element Incompressible Flow Solver,AIAA Journal, Vol. 39, pp. 253 – 260

Computational efficiency is demonstrated by CFD simulation of the starting transients in ADDA solid rocket engines and in the SEATTLER solar mirror tower.
The code is exclusively directed to unsteady flow simulations in slender channels.
Still the 1D CFD approach is well justified in both applications – the RE and the ST –mainly due to the slender aspect of the channels in both ingredients.
The simulation of tower’s unsteady behaviour is based on the unsteady equations of the gas (air) flow.
D., “Technology of CFD in space engines and solar-gravitational power plants”, International Journal on Energy Technology and Policies, ISSN 1472-8923, On-line ISSN 1741-508X, 6, 1-2(2008), p.124-142.

This paper presented simulation analysis of pressure distribution along a mixing blades propeller used in biodiesel reactor tank.
ANSYS FLUENT software was used to run the simulation.
The result obtained from the simulation is agreed well with the published data.
(a) Three bladed mixing propeller (b) Pitch turbine blade (c) Rushton blade Fig. 1: Mixing propeller in biodiesel reactor (a) Three bladed mixing propeller, pitch turbine blade (c) Rushton blade The CAD model was created in Solidwork 2012 and transferred to FLUENT workbench for boundary setup and solving the simulation.
Nienow, The effect of size, location and pumping direction of pitched blade turbine impellers on flow patterns: LDA measurements and CFD predictions, Institution of Chemical Engineers, Trans IChemE, Vol 79, Part A, November 2001

All the simulations are carried out on NACA 0018.The chord length of the aerofoil is taken as 1m.
The goal was to make the boundary layer turbulent, thus pushing the separation point further behind and allowing the airflow to remain adhesive . 4.3 Ansys ICEM CFD ANSYS ICEM CFD meshing software starts with advanced CAD/geometry readers and repair tools to allow the user to quickly progress to a variety of geometry-tolerant meshers and produce high-quality volume or surface meshes with minimal effort (figures- 4&5). 
Simulations are carried out in ANSYS FLUENT. 3D Geometry: In 3D geometry two types of dimples are used in the wing (figures-4&5).
Simulations are carried out in ANSYS FLUENT.Along with two shape of dimples, plain airfoil is also analysed to compare the result with them.
There are several important decisions that has to be made before a numerical simulation could be performed.

Computational fluid dynamics (CFD) is a branch of fluid mechanics that uses numerical methods and algorithms to solve and analyze problems that involve fluid flows.
Fig.1shows the configuration of the CFD model.
Fig. 1CFD model and mesh Fig. 2 Stream lines of flow direction The simulation results in Fig. 2 show that the velocity flow field was very symmetrical and beautiful.
Velocity distribution will be shown at line 1, line 2, line 3 and line 4 The computational fluid dynamics simulation was run with no-slip conditions at the wall and witha pressure outlet at the orifice.
In the case of 1 m diameter cylindrical vortex basin, computational fluid dynamics (CFD) and experiment using the model indicate that the suitable outlet diameter was in the range of 0.2-0.3 m.