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During the simulations, the process parameters and the alloy properties have been explicitly taken into account.
Finally, results of the simulations are compared with experimental data.
Results and discussion Background: Computational modelling of casting process is part of the computer aided engineering (CAE) development, and in particular it considers computation fluid dynamic (CFD) dealing with thermal- and fluid-flow analysis.
The basic principles of the simulation set-up are the considerations of the process parameters, the material properties and of how they can be varied to obtain the optimal simulation, which is as much as close to the actual casting as possible.
As mentioned above, one of the critical points in the simulation results is represented by the mesh size.

The numerical calculation results were obtained by a computational fluid dynamics (CFD) method.
The simulation of such problems has its own set of difficulties associated with the coupling between the involved equations.
Figure 7 shows the numerical simulation diagram of the transient process at different time in a formation period of crater-like Taylor cone.
-H. (2007), "Bubble Electrospinning for Mass Production of Nanofibers", International Journal Of Nonlinear Sciences and Numerical Simulation, Vol. 8, No. 3, pp. 393-396
[18] Paik, K.J., (2010), "Simulation of Fluid–Structure Interaction for Surface Ships with Linear/Nonlinear Deformations", PhD Thesis, The University of Iowa

The fact that the test results shows that simulation of the vibration of the pump based on ANSYS can effectively predict the performance of the vibration pump.
The comparison of simulation value and experimental data indicates that this method is feasible and accurate.
High-pressure liquid in chamber Ⅰ ensures the vibration pump have a high head. 1 down cylinder 2 stator 3 rotor 4 skeleton board 5 elasticity board module 6 absorbent valve 7 retaining valve Fig.1 Structure diagram of vibration pump Fig.2 Physical picture of vibration pump Simulation ANSYS software is one kind of the FEM analysis software, and it is very practical, powerful, widespread and broad generalization.
The PIV and CFD technique will be adopted to investigate the turbulent flow fields inside the pump.

Numerical simulation and field synergy analysis of flow and heat transfer in a vibratory tube Jiuyang Yu 1, a, Lijun Liu 1,b , Wei Lin1, 2 , Qian Liu1 , Wenhao Yang 1 and Sihao Nie 1 , Yiwen Chen1 1School of Electrical and Mechanical Engineering, Wuhan Institute of Technology, 693 Xiong Qu Street,Wuhan 430073, Hubei, China 2School of Mechanical and Electrical Engineering, Wuhan University of Technology, Wuhan 430070, Hubei, China ajyyu@mail.wit.edu.cn, bnewlyn1987@163.com Keywords: Dynamic mesh; Vibratory tube; Heat transfer; Field synergy.
The characteristics of flow and heat transfer are investigated by dynamic mesh of CFD (computational fluid dynamics) software FLUENT, the velocity and temperature distributions in a vibration cycle are analyzed by field synergy theory.

These results can be potential scheme for puff field tests, wind tunnel experiments and especially for numerical simulations.
Fig. 1 General procedure to investigate hazardous gas puff dispersion Basic Dispersion Characteristic Properties and Their Algorithms Original data collection is necessary procedure no matter in field tests, or in wind tunnel tests or even in numerical simulations.
It is known that before no matter large scale field tests or scaled field tests or wind tunnel tests or even numerical simulation, it is necessary to carry out a detailed data collection and processing design.
CFD dispersion modelling for emergency preparadnes.

The simulation outcomes are displayed as stream function, isothermal contours, and local Nusselt number.
Cheng, Numerical simulation of turbulent natural convection in an enclosure with a curved surface heated from below, Prog.
Reyad, CFD simulations of lid-driven cavity flow at moderate Reynolds number, European Scientific Journal, ESJ, 9(15) (2013)
Abdulkadhim, Numerical simulation for conjugate natural convection in a partially heated rectangular porous cavity, J.
Kayode, Computational Fluid Dynamics (CFD) Analysis of Buoyancy Flow in A Differentially Heated Square Cavity, IOP Conference Series: Materials Science and Engineering, 1107 (2021)

(a) Common projectile (b) Developed diameter 148mm Fig.2 Physical models 3.2 Establishment of calculation simulation models 1) Select laminar a flow model from FLUENT, the upwind scheme is the second order upwind scheme.
Simulation results are shown in Fig.5~ Fig.6.
Fig.5Relation curve of resistance Fig. 6 Relation curve of resistance coefficient and angle of attack at Ma=0.6 coefficient and Mach number at α=4 4.2 Analysis on simulation results 1） When Mach number is fixed, the variation tendency of resistance coefficient with the angle of attack corresponding to different developed areas is basically consistent.
Conclusion In this paper, the purpose to correct trajectory is realized by means of controlling the developed area of the resistance circle, and the force situations of common standard projectile and correction projectile are calculated with CFD software.
Command Control and Simulation. 2009(6), 31(3) [8] Guanglin He, Baohua Ma, Linfeng Li, Jing Su: Damping Correction Mechanism of One dimensional Trajectory Correction Fuse [J].

The third one is simulation and discussion.
Simulation and Discussion In this section we use ESI-CFD+ software for simulation.
Giani, Thermal simulation and experimental results of a micromachined thermal inclinometer, Sensors and Actuators A, Physical. 141 (2008) 307-313

Wind-Wave Numerical Prediction Model in East China Sea XiShan Pan1,a, Ruijie Li1,b, Yang Li2,c, Chunhui Li1,d and Weiyi Zhang1,e 1Key Laboratory of Coastal Disaster and Defence (Hohai University), Ministry of Education,Nanjing, 210098, China 2Fujian Port & Waterway Survey and Design Institute, Fuzhou, 350002, China apxs0702@sina.com, brjli@hhu.edu.cn, cfd_billy@hotmail.com, d381266950@qq.com, ezwy16521@163.com Keywords: wind field; WRF model; WW3 model; wave prediction; Abstract.
As the driving force, wind plays a key role in wave calculation and numerical simulation.
So, the study on wind field simulation in Chinese sea has important practical significance.
Finally, the paper uses the calculation result by WAVEWATCHⅢ Model to analyse the simulation ability of the wave field with different wind fields condition in the East China Sea[10].
In order to reduce the influence of simulation accuracy with cold start, the proving time range is chosen from 00:00:00 to 18:00:00 of January 4th in 2009.

And then, the numerical simulation was conducted on the basis of the commercial ANSYS code.
Physical properties and parameters used in the simulation are shown in Table 2.
The simulation results are in good agreement with the experimental value.
A three-dimensional full-cell CFD model used to investigate the effects of different flow channel designs on PEMFC performance.
A simulation tool for geometrical analysis and optimization of fuel cell bipolar plates: development, validation and results.