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For this reason, the need for simulation of entire phenomenon is necessary.
Up to now, Computational Fluid Dynamic (CFD) has concentrated one’s attention to grid-based method, which two different frames namely: Lagrangian grid and Eulerian grid.
They are very popular method in numerical simulations to solve different problems in science and engineering.
Fig. 8 Results of numerical simulation about tsunami generated by submarine slide Conclusion The development of mesh free methods offers a reliable approach to tackle the simulation of such difficult problems.
Chadwick, Simulation of wave overtopping by an incompressible SPH model, Coastal Eng. 53 (2009) 723-735

Green Simulation and the Corresponding Modeling Method In the design field, product design is a very complicated work.
Take green building for example, green simulation and the corresponding modeling method is illustrated.
Now these problems have been fully taken into account in the design stage through fine analysis technique based on the computer numerical simulation.
green building construction plans architectural design electrical equipment professional design main structure professional design equipment construction simulation equipment operation simulation structural stress calculation structural construction simulation wind environment simulation energy consumption simulation light environment simulation acoustic environment simulation emergency processing simulation Fig.3 The computer-aided decision-making system of green building Green Monitoring and the Corresponding Monitoring Content In the past, people put more emphasis on the end of the pollutant control and treatment, while the whole process monitoring and prevention of pollutants are ignored.
Xiang, Application of numerical simulation technology in the design of green building, Focus of attention, 11(2013):26-31 [5] Z.

Study and Simulation for Optimization Plan of the Liquamatic Fire Water Cannon with Self-swinging Device Ji Zhou1, 2, a, Guorong Li2, b 1Zhejiang Shuren University, Hangzhou, Zhejiang Province, 310015, China 2Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia Autonomous Region, 014010, China acappi@163.com, bligr11@163.com Keywords: Fluid field simulation, Liquamatic fire water cannon, Self-swinging, Structural parameters.
In this paper, fluid field simulation was conducted with the fire water cannon, which is one of the most commonly used equipments in fire fighting.
These simulation results will provide useful theoretical guidance for design of other types of fire water cannon.
The opening of nozzle can be adjusted by a handle operation, which can determine direct jet or spray jet. 1.monitor head 2.handle operation device 3.outlet pipe 4.location and locking device 5.inlet pipe 6.connecting rod 7.disk drive 8.bevel gear 9.driven shell 10.impeller 11.monitor feet 12.monitor base 13.feet mechanism Fig. 1 Structure of the liquamatic Fire water cannon with self-swinging device Simulation Analysis of Structural Parameters on Jet Characteristics Fluent software, as one of the general CFD softwares, is used to simulate complex flow, ranging from incompressible fluid to highly compressible fluid [4].
Fig. 2 Circular flow channel model Fig. 3 Square flow channel model Fig.4 and Fig 5 show the velocity flow simulation under different cross-sectional shape of the monitor body.

Introduction The conventional computational fluid dynamics (CFD) methods are based on direct discretization of the Navier–Stokes equations.
The kinetic methods for CFD, however, are derived from the Boltzmann equation.
Due to their mesoscopic nature, kinetic methods are particularly appealing in modeling and simulations of complex fluids ‎[1].
In addition the results of the unsteady Couette flow simulation between two cylinders have been discussed.

Sometimes, such a software allows simulation and highlighting the behavior of the product during its use.
We can start the simulation and calculation of stress.
As a result, we get a lot of simulation outcomes and indications.
Today, many leading corporations of the world consider that they must have simulation and design software from ANSYS.
It first realized innovations such as performing analysis on a personal computer (PC), integrated problem solving fluid dynamics (CFD) and a multi-purpose package for solving complex problems in physics and mechanics.

According to numerical simulation result, the main factors in swirl number are camber and angle of attack, the greater angle of attack, the greater the camber ,the stronger swirl will be.
This paper use commercial software ICEM CFD build the three-dimensional meshing, and FLUENT as solver, it takes second-order upwind scheme as calculation method and RNG k-ε model as turbulence model.
Numerical Simulation and Experimentation Research on Vortex Enhancing Combustion of Solid Fuel Ramjet[D].
Simulation test of NACA airfoil used on mining axial-flow fan[J].
Numerical Simulation and Test Research on the Hydraulic Performance of Down hole Mud Turbine[J].

A three-dimensional coupled fluid-thermal finite element simulation model has been developed to provide analyzing distribution of velocity and temperature of nine-spacer nozzle by using FEM simulation of FLOTRAN module in ANSYS 6.0.
Accurateness means that a result from simulation could be directly used to design or optimize flow field of a real nozzle’ shape, besides to discuss.
So accounting of nozzle’s flow field will yield more accurate simulation results of coupled fluid-thermal finite element simulation model.
Conditions of Simulation for the Finite Element Analysis Fig. 2.
Multiphase Phenomena and CFD Modeling and Simulation in Materials Processes Symposium. (2004), p. 325-34

It provides a computational fluid dynamics (CFD) calculation method mainly based on the turbulence model of so-called large eddy simulation (LES).
The simulation results showed reasonable agreement with post accident reports.
Yu: Dynamic Simulation of Backdraft Phenomena in a Townhouse Building Fire.
Chien: Using fire dynamic simulation (FDS) to reconstruct an arson fire scene.
Xin: Experimental study and numerical simulation for a storehouse fire accident.

This paper is an attempt to analyze the steady and dynamic behaviors of an aerodynamic micro air journal bearing numerically using CFD common software FLUENT.
Grid meshing Since the structure of the air journal bearing is axial symmetry, 2D simulation is enough to analyze the dynamic property of the air bearing.
This can be verified by the simulation data.
So, the rotor system is in a stable state.Summary The effect of the main parameters of air journal bearing including the clearance, gear number, gear height and rotational speed of rotor on the load capacity is analyzed by simulation.
According to the simulation results, the optimum clearance is 15µm, gear number and height is 18 and 30µm.

Wang Xinhua [5] proposed it could improve the reliability of the design by using two-dimensional CFD simulation for designing oil pad and a new type oil pad with oil groove was presented by using this method.
Numerical Simulation Research of Round Hydrostatic Oil Pads Based on CFD