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NUMERICAL ANALYSIS OF MATERIAL TEMPERATURE DISTRIBUTION Muaffaq Achmad Jani Information Engineering Department, Faculty of Engineering University of 17 Agustus 1945 Surabaya, Indonesia muaffaqjani@gmail.com Keywords: material temperature, numerical analysis, simulation.
Simulations performed on the heat distribution PMMA and LiNbO3 crystal with thickness of 2 to 2.5 mm. 1.
The material used for the simulation is LiNbO3 with a thickness of 2.5 mm, Heat Transfer (h = 25Watt/m2°K).
Change of temperature The simulation of the temperature distribution in the material can be seen in Figure 3.
Informasi dan Komunikasi, Vol.2, No.1 (2006) [8] Yoges S and Eckehard S., Seventh International Conference on CFD in the Minerals and Process Industries CSIRO, Melbourne, Australia (2009)

Mesh division is the basis for numerical simulation and it will directly affect the accuracy of numerical computation.
The simulation result of lift characteristics of airfoils NACA 4412 with or without modification is shown in Fig. 2.
Lift coefficient of airfoils with or without modification Angle of attack α/° Lift coefficient Cl Airfoil without modification Airfoil with simple Gurney flap Airfoil with remodeled Gurney flap Airfoil tested in NREL The simulation result of variation of drag coefficient with angle of attack of airfoils NACA 4412 with or without modification is depicted in Fig. 3.
Conclusions By using common software Fluent for CFD, numerical simulation is investigated in connection with the airfoil NACA 4412 and its modification.
The numerical simulation of aerodynamic performance of the airfoils is conducted with common software Fluent for CFD and its investigation method and result may be taken as an effective reference for the process of aerodynamic design of airfoils that suitable for wind turbines.

Fig1 Terrain analysis diagram 3.2 Analysis Simulation of Building’s Light Environment Radiance optical simulation software system uses the reverse ray tracing engine optimized by Monte Carlo algorithm.
Ecotect Analysis is a simulation tool of architectural physics with a wide analysis scope.
Daylighting analysis Illumination analysis Fig2 Light environment simulation analysis diagram 3.3 Analysis Simulation of Wind in Site Finite Volume Method of Computing Fluid Dynamic (CFD) can simulate the distribution of temperature field, air flow field and water vapor inside and outside the building.
Fig3 The wind environmental simulation diagram 3.4 Analysis Simulation of Building’s Energy Conservation Popularization of energy-efficient buildings are in prospect.
Finally, combined with typical local climate data, simulation engine is applied to conduct simulation with time.

With the results of the simulation we have done a comparative analysis on the additional vertical forces introduced by wind for the cases analyzed.
For air flow simulation are used the SolidWorks Flow Simulation software which has include the model k-ε for turbulent regime.
Stabilized values of the vertical aerodynamic forces resulting from the simulations performed for the 25 cases considered are shown in the Table. 1.
The vertical aerodynamic forces obtained during the simulation, in case of the angles analysed The aerodynamic forces vertical obtained in time of simulation airflow taking into account of the situations for the wind speed and its direction, front of the longitudinal axis are shown in Fig 6.
Rocchi, Some considerations on the aerodynamics of high speed pantograph: cfd and wind tunnel tests, BBAA VI International Colloquium on: Bluff Bodies Aerodynamics & Applications, Milano, 2008

., Taiyuan, China a gaoyuanlou@263.net, b llxbuaa@126.com, czjl1165@126.com Keywords: CFX, PVC, fluid simulation, the law of pressure and speed Abstract: When extrusion molding, the pressure fluctuations within the nose is the largest problem in the extruder production.
By CFX fluid simulation of flow field distribution in extruder based on PVC production, we obtain the law of pressure with the change of speed, which provide guidance for the control of press inside the extruder.
Simulation analysis We used Ansys CFX to simulate and analysis fluid in the extruder [2].
Simulation results are shown in Fig.1 and Fig.2.
The Computational Fluid Dynamics Analysis–CFD Software Application.

In 2002, Wang Changrui calculated the temperature field of new hydrostatic bearing based on the CFD theory by using four-node isoparametric element method, and finally verified the experiment on the reversible hydrodynamic thrust bearing experimental platform [3].
The oil film performance affected by the geometry characteristic of round chamber and viscosity change caused by viscosity, viscosity-temperature and viscosity-pressure was studied by modeling mathematical model in order to simulate the three-dimension flow in hydrostatic rotational platform and selecting laminar model, base on CFD theory, and contrasted the performance difference between newtonian fluid and non-newtonian fluid [6].
(a) The base model (b) The equipment model (c) The simulatonal model (d) The oil pad model Fig.2 The whole model of the simulation experiments Meshing of Hydrostatic Bearing Model The finite element software GAMBIT is used to generate the simulational mesh of hydrostatic mesh.
Fig.8 Relationship between rotational speed and highest temperature Conclusions (1) In this simulation experiment, finite element software FLUENT6.3 is used to obtain the temperature field of the oil pad with the software GAMBIT meshing, which is almost hard to get by real instrument for the tiny depth of the oil film.
(2) The data obtained in this simulation is almost same as that gotten by temperature sensors, which contributes to the layout of the heat transfers of the hydrostatic bearing with heat transfers.

Lu, Numerical simulation on solid-liquid two-phase flow in cross fractures, Chem.
Kumar, Investigation on Pressure Drop of Fluid-Solid Mixture Flow through Pipes Using CFD and SK Model, J.
Wang, Investigation on the Erosion Characteristics of Liquid–Solid Two-Phase Flow in Tee Pipes Based on CFD-DEM, J.
Prasad, Simulations of water flow in a horizontal and 900 pipe bend, Mater.
Mohapatra, Simulation and optimization of coal-water slurry suspension flow through 90 pipe bend using CFD, International Journal of Coal Preparation and Utilization, 41 (2021).

The use of computational fluid dynamics (CFD) can help with numerous performance analyses and assumptions leading to more accuracy predictions onto fire behavior.
Thus, computer simulations are a vital tool for fire research [1-3].
Initial fire point Fig. 1 Simulation 3D model and the second floor , third floor.
The simulation results were similar to the actual fire photo (Fig. 2 left).
From the simulation, the wooden materials keep burning till the end of the whole simulation; the CO concentration maintains around 2000 to 2500ppm.

Wang et al. [4] used CFD code to investigate the mixing characteristics under the two-dimensional, laminar, symmetric and confined opposing streams for different temperature differences of opposing jets.
In comparison with the conventional CFD methods, LBM has some advantages such as simple calculation procedure, simple and efficient implementation for parallel computation, easy and robust handling of complex geometries, and others.
To check grid independency, the averaged outlet temperature was calculated at different grid sizes and no significant difference was observed between them and due to time saving, the grid 200×320 was selected for numerical simulations.
a b Figure 1. a) The computational domain and simulation parameters, b) Comparison of velocity profile for partially filled channel with porous media between present model and [22].
According to these simulation results it was observed that model with minimum porosity has the maximum mixing rate between two entering fluid flows and maximum dimensionless entropy generation due to higher effective thermal conductivity in porous block.

For the study of atmospheric diffusion of particles, it has the following several aspects: Using high-speed photography technology to film in wind-tunnel test and then take data analysis [1]; Conduct a method combined the experimental research and numerical simulation to get movement parameters and velocity distribution function of particles under different working conditions[2]; And using CFD to simulate the migration distance and sphere of action of the radioactive particles in atmospheric area[3].
Also, it provides an effective method for how to set up safety protection distance in nearby tailings area through the simulation of radioactive operating range of tailing sand.
Zhou: Study on Numerical Simulation of Defending Effect of Windbreaks, China, (2001)
[7] J.M.Hu: Numerical Simulation and Application on Windbreak Controlling Granule Raised up at Stack, (2003), P5-46
Xie: Numerical Simulation of Atmospheric Migration of Uranium Tailings Grit Based on DPM, Hengyang, China, (2013), P96-100