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Besides, SST and DES turbulence model are used for steady and unsteady simulations.
Recently, with the development of computer power many CFD approaches have been developed to predict these flows.
Along with the development of the computer power, there has been a great improvement in the numerical simulation and more general CFD approaches have been developed to analyse the cavitation flows.
-L., and Delannoy, Y., 2003, “Numerical Simulations in Unsteady Cavitating Flows,” Int.
Multi-phase CFD analysis of natural and ventilated cavitation about submerged bodies.

Analysis of process For the One-way fluid-solid coupling problem of hydrodynamic coupling, it needs to simulate the CFD numerical of the hydrodynamic coupling flow field, then extract the blade pressure value, and the pressure is applied to the blade structure through interpolation, then make the finite element analysis on the blade.
Figure 1 Analysis of process Mathematical models CFD numerical simulation.
With the braking condition and 80% liquid filling rate, the flow field numerical analysis is performed while using CFD software, export the flow pressure value of turbine blade coupling surface.

Simulation of New Wet Duster’s Nozzle Based on Fluent Shanshan Tanga, Kaisong Wangb, Chaokun Weic, Tengfei Mad School of Mechanical Engineering, Anhui University of Science and Technology, Huainan, China a1323823076@qq.com,b6668978wks@126.com,cweichaokun@126.com,d15395403497@163.com Keywords: coal dust; dust collector; nozzle; Fluent simulation Abstract.
Fluent software is a relatively popular software package in international commercial CFD (computational fluid dynamics) at present.
Fig.6 Wall pressure distribution Fig.7 Wall velocity vector distribution Conclusion In this paper, through the simulation analysis of nozzle, surface pressure and velocity distribution of the basin in different areas can be seen.It is that high pressure area in left and low pressure area in right; the speed at the exit is the fastest while the pressure here is the minimum.These research not only provide a reference for nozzle structure optimization,but also have important significance for wet duster’s future improvement.
FLUENT - fluid simulation calculating examples and engineering application(Beijing institute of technology press, China, 2010) [8] FLUENT Incorporated FLUENT User’s Guide: Getting Started[M].FLUENT Incorporated,1998
Based on Fluent since into the numerical simulation of rotary jet nozzle [J].

The Aerodynamic Characteristics of Bus in Different Lateral Locations of Steel Box-Girder Bridge Jiguo Zhou, Zhaotong Hu School of Highway, Chang’an University, Xi’an 710064, Shanxi, China Zhoujiguo_1986@126.com Keywords: vehicle-bridge system; numerical simulation; aerodynamic characteristics; critical wind speed; traffic safety Abstract: Choosing bus as the research object, the aerodynamic characteristics of bus in the coupling of wind-vehicle-bridge system were analyzed by CFD (Computational Fluid Dynamics) numerical algorithm.
Choosing the bus driving on the steel box girder bridge as the research model and applying CFD (Computational Fluid Dynamics) numerical simulation method, the main goal of this paper is to analysis the differences of aerodynamic characteristics of vehicle in different lateral lanes on steel box-girder bridge under the natural wind loads.

Over the last decades, attempts have been made to predict the melt pool shape of an ESR ingot using CFD models [4-6].
The required modeling equations are implemented in the commercial CFD software, FLUENT-ANSYS v.14.5, using User-Defined Functions (UDF).
The simulation results were verified against experimental ingot (Fig. 2(c)).
Different interdendritic melt flow and different shape of the melt pool were predicted in the two simulations.
Holzgruber, CFD Modeling and simulation in materials processing, Wiley publication, USA, 2012, pp. 139-148

Computational Fluid Dynamics (CFD) is an emerging technique for fluid/structural analysis by numerical simulations.
CFD substantially reduces the lead time and costs in design and production compared to traditional wind-tunnel testing approach.
Despite its capabilities, CFD has not yet found many applications in civil engineering.
An attempt [15] was recently made to integrate the latest developments in BESO with CFD for the conceptual design of building structures.
The wind fluid analysis was simulated using CFD and the structural response to the wind load obtained from CFD was calculated with FEA.

Simulation in 2D.
a c b Figure 4: Domain of simulation.
This explains the fact that the speed of the sintering obtained during simulation CFD is higher compared to the ideal model of Lontz and the experimental tests.
The sintering speed obtained by the CFD is higher at the speeds obtained by the ideal model of Lontz and the experimental tests.
The results of simulations are the first but representative at the coalescence of two grains.

This paper built a combustion model of marine dual fuel engine by AVL FIRE software, based on the dual fuel engine emissions test data, then numerical simulation of the combustion process was carried and analyzed the characteristic in combustion process of marine dual fuel engines.
K-zeta-f two-equation turbulence model was selected to simulate cylinder flow field of the internal combustion engine in the CFD software[1].
The object of simulation was combustion process of marine dual fuel engine.
CFD in IC- engine spray and combustion simulation: Current status and future development.
Numerical Simulation of Diesel Ignited Dual Fuel Engine Based on the Finite Volume Method.

Three-dimensional numerical simulation of SMD of the droplets in the inlet port of a gasoline engine was employed using the CFD software.
The simulation results show that the most influential parameters on SMD of the droplets are intake temperature and fuel temperature.
Gosman, “Development of Methodology for Spray Impingement Simulation,” SAE Paper 950523, 1995
Chu, “Flow Characteristics in Intake Port of Spark Ignition Engine Investigated by CFD and Transient Gas Temperature Measurement,” SAE Paper 961997, 1996

Chow [4] uses CFD method to simulate the smoke control effectiveness by air curtain for spaces adjacent to atria which indicates air curtain having a good performance in smoke control.
Although it is easy to simulate with CFD method, both situation are considered.
Parameter Settings Fig. 2 Air curtain on the door Fig. 3 Thermcouples distribution in the simulation Fig. 2 shows the dimensions of the simulation area are 20.2×1.6×2.3 (m) while the air curtain is 1.4×0.1×0.1 m.
The air curtains used in the simulation are installed 15m away from the fire source.
The simulation result shows that the air curtain has a good fire and smoke control in long tunnels.