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The theoretical approaches to the erosion and wetting/flowing phenomena during the laser brazing process were made by the computer simulation.
The preheating temperature profile measured in the tandem beam brazing was counted in the simulation (Fig.6(b)).
It follows that the wetting/flowing behaviors of the filler metal during the laser brazing process can be predicted by the computer simulation.
(3) The flow of the melted Au-18%Ni filler metal on a butt joint of Inconel 600 during the laser brazing process was analyzed by the computer simulation.
[10] Flow Science, Inc. customized by CFD Lab., (2005)

Numerical Simulation of Impacts of Different Types of Air Duct Outlets on Ventilation Efficiency Chunzi Nana, Jiming Ma b and Zhao Luoc State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China ancz08@mails.tsinghua.edu.cn, bmajiming@mail.tsinghua.edu.cn, cfly-lz@163.com Keywords: tunnel construction; ventilation effect; air duct outlet; numerical study.
Table 2 The amount of time cross sections of different cases need to lower the CO concentration to 0.0024% Time (s) Cross section A-A Cross section B-B Case 1 560.8 660.1 Case 2 627.8 721.2 Case 3 518.1 620.2 Conclusions According to the numerical simulation results including velocity distributions, turbulent intensities, and the exhaust effects of CO, the comprehensive analysis suggests that case 3 is the best for ventilation.
[5] Axel Bring, Tor-Goran Malmstrom, Carl Alex Boman, Simulation and measurement of road tunnel ventilation, Tunneling and Underground Space Technology, 12 (1997) 417-424
Inoue, In-situ Measurement and Simulation by CFD of Methane Gas Distribution at a Heading Faces, Shigen-to-Sozai, 114 (1998) 769-775
Liu, Simulation on ventilation airflow and CO diffusion in leading face of excavation in tunnel, Journal of Hydraulic Engineering, 39 (2008) 121-127

Earlier studies detail the calibration and validation of a three-dimensional (3D) computational fluid dynamics (CFD) model for the development of a Cold Spray Digital Twin (CSDT) [10-13].
Nagarajah. 3D CFD Multicomponent Model for Cold Spray Additive Manufacturing of Titanium Particles, in CFD Modeling and Simulation in Materials Processing 2016, Springer Cham, (2016), 213-20

In recent years, solid mechanics, nonlinear finite element analysis method is quite mature, and in fluid mechanics, nonlinear Navier-Stokes equations solving CFD technology progress very rapidly, [19-20]。
Simulation of vibrationst resses in turbine blades [R] .
Simulation of vibrationst resses in turbine blades [R] .
Finite element simulation of turbomachine blade row viscous interactions vane vibratory stress predictions[R] .
Finite element simulation of turbomachine blade row viscous interactions vane vibratory stress predictions [R] .

Simulation is carried out for Reynolds number varies from 10 to100 for the fluid as air with Prandtl number as 0.71.
About 1,71,783Tetrahedran meshes are used for simulation and mesh near to cylinder is shown in Fig. 1(b).
It is observed that the present numerical simulation shows close agreement with them.
Simulations are carried out for Re = 10, 20, 30, 40, 100.
Dhiman,Cfd analysis of momentum and heat transfer around a pair of square cylinders in side-by-side arrangement,Heat Transfer Engineering, 35 (2014) 398–411

The simulation results revealed that methyldiethanolamine (MDEA) was an efficient absorbent.
Fig. 3 and 4 illustrates CFD simulation result so that an increase in the solvent concentration results in improving reaction site and CO2 solubility.

From the simulation, the author found that the highest cell temperature is at 66° with 12.2% efficiency.
Rattanasuda and his team [9] performed an analytical study of the PV/T system’s configuration system by using computational fluid dynamics (CFD) approach.
Conclusion Various design parameters had been proposed and developed by researchers throughout the world, and these design had been demonstrated by using both simulations as well as experiments.
A., Conventional Hybrid Photovoltaic/ Thermal (PV/T) Air Heating Collector: Steady State Simulation, Renewable Energy 3 (1997) 363-385 [4] Hegazy, A.

Study on Behavior of Underwater Shock Wave in Enclosed Vessel Yusuke Seki1, a, Hiroshi Fukuoka2, b, Yoshitaka Miyafuji3, c, Hirofumi Iyama4, d, Osamu Higa3, e and Shigeru Itoh5, f 1Mechanical Engineering Regular Course, Nara National College of Technology, Nara 639-1080, Japan 2Department of Mechanical Engineering, Nara National College of Technology, Nara 639-1080, Japan 3Technical Support Section, Okinawa National College of Technology, Okinawa 905-2192, Japan 4Department of Mechanical and Intelligent Systems Engineering, Kumamoto National College of Technology, Kumamoto 866-8501, Japan 5Okinawa National Colloege of Technology, Okinawa 905-2192, Japan aa0730@stdmail.nara-k.ac.jp, bfukuoka@mech.nara-k.ac.jp, cmiyafuji@okinawa-ct.ac.jp deyama@kumamoto-nct.ac.jp, eosamu@okinawa-ct.ac.jp, fitoh_lab@okinawa-ct.ac.jp Keywords: Underwater, Shock wave, Explosion, CFD, Supersonic Flow Abstract.
The numerical simulations were carried out using LS-DYNA finite element code.

Simulation calculation is set to transient iterative calculation.
Fig.3 Effect of airflow ascend-type simulation Fig.4 Average temperature of cross section of airflow ascend-type observation surface Fig.5 Effect of airflow descend-type simulation Fig.6 Average temperature of cross section of airflow descend-type observation surface Fig.7 Effect of positive inversion ventilation mode simulation Fig.8 Average temperature of cross section of positive inversion ventilation mode observation surface Fig. 3 and Fig. 5 are simulation results of the airflow ascend-type and airflow descend-type, and Fig. 7 is a simulation effect diagram of the positive inversion ventilation mode, wherein the mode shown in Fig. 7 is in the airflow ascend-type mode.
[7] ZHAI Zhi-ping, YANG Zhong-yi, GAO Bo, et al.Simulation of solid一gas two-phase flow in an impeller blower based on Mixture model[J].
[8] YU Feng-quan.The summary of CFD simulation methods for architecture wind environment[J].
Numerical Simulation of Whole Flow Field for Centrifugal Pump with Structured Grid[J].

The renormalization group (RNG ) that was proposed by Yakhot and Orzag[10] overcome this disadvantage through improving ε equation, and provides an analytical formula for the Prandtl Number, so this model can be used in the simulation of strong swirling flow or flow with a complex wall in the spiral centralizer.
Mixture Model Mixture model is mainly used for simulation of two phase flow, it is relatively accurate when the solid particles content of less than 20% at the section.
[4] Yingfeng Meng, Zhanghua Lian, “CFD Numerical Simulation Research on Cutting-Carried Capability in Gas Horizontal drilling”, Natural Gas Industry, vol. 25, no. 7, 2005, pp. 50-52