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Numerical simulation results give a better approximation to practical reproduction, successful prediction of weld shape, weld defects and peak temperature.
In order to study the microstructure changes associated with FSW, thermal modeling is a central part of FSW process simulation [2-3].
Despite the complex flow pattern, extensive research has been carried out and focused on thermal modeling of FSW, which is considered the basis of all the models of the process i.e. mechanical, computational fluid dynamics (CFD) and other coupling models.
Numerical simulations have been carried out to reveal the effect of process parameters on the temperature fields.
Numerical simulation results give a better approximation to practical reproduction, successful prediction of weld shape, weld defects and peak temperature.

The numerical simulation provides information about volume fraction, pressure and velocity distribution of the phases (resin and air) inside the porous media.
For the numerical analysis was created a structured mesh with 17,532 elements and 23,876 nodes using ANSYS ICEM CFD software version 12.0.1.
To perform the numerical simulations was used the ANSYS CFX 12.1 with a time step of 0.05 s.
Results and Discussions The volume fraction variation of the experiments and simulations were analyzed and compared.
It is observed that the flow fronts forms a circle, however in the simulation the permeated region forms a more defined circle than the experimental.

Ansys simulation.
Simplify profile as two-dimensional model in the following simulation.
Simulation of temperature field and analysis of influencing factors for a square tube aluminum profile in spray cooling.
Research of effects of jet pressure and jet distance on H-beam temperature field by numerical simulation.
Computational Fluid Dynamics-CFD Software Principle and Application .

The efficiency and performance of the HVAC system in the isolation room can be improved by using CFD simulation, as shown by several studies [10], [13], [14].
Sikarwar, Design and simulation of isolation room for a hospital, no.
Biswas, “A novel CFD analysis to minimize the spread of COVID-19 virus in hospital isolation room,” Chaos, Solitons and Fractals, vol. 139, p. 110294, 2020, doi: 10.1016/j.chaos.2020.110294

Simulation of Drill Pipe Lateral Vibration Due to Riser’s Oscillation Nabil Al Batatia, Fakhruldin M Hashimb and William Paoc Department of Mechanical Engineering, Universiti Teknologi PETRONAS, Malaysia abil_mt04@yahoo.com, bfakhruldin_mhashim@petronas.com.my, cwilliam.paokings@petronas.com.my Keywords: Marine riser, Drill pipe, Lateral Vibration, Vortex Shedding.
The results were compared with the experimental and simulation data from the open literature.
In this research, the vortex shedding was analyzed using a 2D fluid dynamic simulation in segmented depth from 1 meter to 500 meters on turbulent current model with a viscosity of 0.0015 N s/m2.
Riser Operating Condition Depth (m) Re Operation Pressure ( Pa ) Velocity ( m/s) 1 1,065,644 1762.44 1.86 60 836,473 704434.00 1.46 100 624,490 1106510.00 1.09 500 486,988 5127230.00 0.85 The result of CFD analysis is the drag coefficient of the riser, the drag coefficient can be transformed into drag force using equation (2) and will be inputted as mechanical force in the mechanical vibration analysis (2) where is the drag force, is the fluid density, is the drag coefficient, is the cross sectional area and is the velocity.

Solar Performance of a Dome-covered House Yaolin Lin1, a, Wei Yang1,b and Radu Zmeureanu2,c 1 Wuhan University of Technology, Wuhan, China 2Concordia University, Montreal, Canada ayaolinlin@gmail.com, byangv1984@163.com, cradu.zmeureanu@concordia.ca Keywords: Solar Energy, Thermal Model, Computer Simulation, Dome Abstract.
The results of the model are also verified by simplified models and CFD model, which implemented in commercial software, as well as experimental measurements with Singh et al. [12] and simulation results from Luttman-Valencia [13].
The simulation on the annual weather data shows an average reduction of heating load is 92.9% in Montreal and 56.3% in Yellowknife.
The simulation results predicted significant reduction on the heating load of the house when a dome is used compared with the case of an unprotected house in Canada.

Computational Fluid Dynamics Analysis of Working Fluid Flow and Machining Debris Movement in End Electrical Discharge Milling and Mechanical Grinding Compound Machining Renjie Jia, Yonghong Liub, Chao Zhengc, Fei Wangd, Yanzhen Zhange, Yang Shenf and Baoping Caig No.66, Changjiangxi Road, Economic and Technological Development Zone, Qingdao City Shandong Province, China ajirenjie202@yahoo.cn, bliuyh@upc.edu.cn, c287163671@qq.com, dwangfei208@sina.com, eyanzhen010@163.com, f492653030@qq.com, gcaibaoping987@163.com Keywords: computational fluid dynamics, numerical simulation, gap flow field, compound machining Abstract.
Establishment of the Simulation Model for the Gap Flow Field Establishment of the Geometrical Model and Meshing for the Gap Flow Field.
Wang, Analysis of Computational Fluid Dynamics-Principle and Application of CFD Software, second ed., Tsinghua University Press, Beijing, PR China, 2004

Simulations exhibits and quantify the response of the capillary motion to the thermal conditions.
Axisymmetric domain is considered for numerical simulation.
Simulations show that in a capillary tube flow and transfers depend on the condition imposed on the side walls.
Conclusion A computational model successfully used for CFD problems involving liquid bridge is extended to capillary tube configurations.
The simulation allows the access to the interfacial temperature and to characterise its interaction both with Ma convection and heating profile for conditions close to operating parameters used experimentally.

The macro-scale analysis are conducted by using Finite Element Method(FEM) based on the Computational Fluid Dynamics(CFD).
Finally the cavity flow simulations are conducted with different Re number.
The cavity flow simulation with different changeable viscosity and Reynolds number are conducted by considering the meso-macro multi scale analysis.
A.J.Chorin,Numerical Simulation of the Navier-Stokes Equations, Math.

Because it is necessary to minimize the computational domain to a minimum for computational reasons, key elements in the numerical simulation is the treatment of reflection from model structures such as a breakwater or sea wall.
In the paper, CFD software FLUENT is used as the foundation to develop the numerical wave flume.
Numerical simulation of progressive wave and standing wave was carried out to cheek if the module works well.
Numerical Simulation of Wave Impact on the Slab.