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S.Kumar, G.Cox, et al simulated the road tunnel fire using CFD approach, built the JASMINE mathematical model, and studied the dynamic development of temperature field and the smoke concentration field in a medium tunnel fire with various longitudinal wind velocities[5].
This paper focuses on the simulation of the smoke concentration field, temperature field, and velocity field in tunnel fires.
Non-steady calculation method was adopted, and the simulation time is 600s.
Simulation results and analysis The underground highway fire of 5MW and 10 MW were simulated with the ANSYS CFX to obtain the temperature field and the smoke field in 600 seconds in the tunnel.
Exhaust port wind velocity and exhaust port size were small in this simulation.

Numerical simulation Mesh division.
Simulation analysis.
The simulation of one-way valve in 4 different openings (10mm, 24mm, 38mm, 51mm) under the steady flow field were carried out.
l The numerical simulation can determine the position of the maximum energy dissipation.
ANSYS ICEM CFDANSYS ICEM CFD example explanation of mesh division.

Unsteady Wake Effect on Film Cooled Rotating Blade Ling Zhang1, a, Shan-ru Wang 1, b and Min Lv2, c 1,2Institute for Energy and Power Engineering Northeast Dianli University, Jilin, Jilin 132012, China azhangling_2009@qq.com,b835799810@qq.com,c383610338@qq.com Keywords: Unsteady wake, Film cooling, Numerical simulation Abstract.
In this paper, CFD is performed to study cascade in 3D numerical simulation.

Influences of the height of two wall-mounted rectangle cylinders on their Flow Patterns and Drag Coefficients Haiyuan Li1,a, Dawen Xue1,b, Zhihua Chen1,c, Baoming Li1,d 1State Key Laboratory of Transient Physics, Nanjing University of Science & Technology，Nanjing，China ali_haiyuan@mail.njust.edu.cn,bdawenjs@163.com cchenzh@ mail.njust.edu.cn ,dbaomingli@mail.njust.edu.cn Keywords: large eddy simulation (LES); wall-mounted cylinder; flow past cylinder; drag force Abstract: Large eddy simulation has been applied to simulate the compressible flow past one and two wall-mounted rectangle cylinders, respectively.
Using commercial CFD code CFX4, Pharoah and Djilali[3] performed numerical simulations on steady laminar flow in channels having periodic square obstacles both with and without system rotation, and found that rotation may have net benefits on heat and mass transfer processes in obstacle filled channel.
Some numerical simulations with the use of LES on flow past wall-mounted square cylinders concentrate on the comparison and validation of the numerical schemes and methods.
Schmidt and Thiele [5] compared the numerical results for flow past a wall-mounted cube at a Re=13000 with the use of LES, detached eddy simulation (DES) and RANS in order to assess of the performance of DES, and found that the main advantage of DES arises in external flows with only a fraction of grid points compared to LES.

There are several challenges to investigate the flow characteristics around water-lifting aerator in the physical pilot model and in the stratified source reservoir, but computational fluid dynamics (CFD) method is an important and useful tool for investigating this kind of water environment problem.
Numerical Simulation Methods Model of calculated region.
A two-dimensional axisymmetrical simulation model of flow domain, and the right half of the simulation model was used.
The temperature of water-inlet of simulation domain defined by an UDF is the average value of temperature of water-outlet of simulation domian at the previous simulation time.
Methods of numerical simulation and data analyses.

Numerical Simulation of Shock Diffraction on Cartesian Grid Hong Chen1, a, Weibing Zhu1,b , Runpeng Sun1,c and Bin Zhang2,d 1 College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, China 2 College of Astronautics, Beijing University of Aeronautics and astronautics, Beijing 100083, China a ch02221@126com, b zhuweibing@hrbeu.edu.cn, c chenxing-srp@163.com d zhangbin.1983@yahoo.com.cn, Keywords: shock diffraction, Level set, cartesian grid, Ghost cell Method.
-S., Yovanovich M.M., Numerical simulation of shock diffraction on unstructed meshes [J].
In: CFD 97 Proceedings; 1997. p. 5.13–5.18

Simulation Tools for Glass Forming Processes by Drawing Christoph Berndhäuser1, a, Ulrich Lange1,b 1 Schott AG, Hattenbergstrasse 10, 55122 Mainz, Germany a christoph.berndhaeuser@schott.com, bulrich.lange@schott.com Keywords: glass forming, modeling, updraw, downdraw, float, tube drawing.
Small aspect ratios (thickness or diameter vs. length) Fig.1 are very typical for all drawing processes and can be exploited to derive simplified 2.5D models - velocity and temperature approximately uniform in each cross section - with good agreement to full numerical simulations.
Except for fiber forming model all other submodels can be done by standard CFD codes whereas the fiber model requires free surface capabilities as it is available for example in Polyflow.

Their simulation results presents only 1.2% and 1.5% of the contaminate particles remain in the men’s and women’s rooms, respectively.
Our study hope to have other solution to increase ventilation efficiency without different ACH rates; consequently, we change area of the wall-exhaust diffuser to research by using a computational fluid dynamics (CFD) software named FDS (Fire Dynamics Simulator) [9] to analysis.
Numerical simulation using Fire Dynamics Simulator (FDS) This study use a numerical simulation software named Fire Dynamics Simulator (FDS) [9] to analysis.
This simulation uses that produced smoke replace odor flow and we could observe flow pattern and smoke concentrations.
Air change rate and odor removal analysis A curve fitting performed using 3 order polynomial with numerically simulation‘s data.

�umerical Simulation Pressure Distribution.
Fig. 6 shows the comparison of pressure distribution between simulation and experiment results.
The simulation and experiment results have a big difference in Fig. 6a, Fig. 6d and Fig. 6e.
But the experiment curve and the simulation curve have deviation.
In Chinese [5] Fujun Wang, "Analysis of computational fluid dynamics ------Principle and Application of CFD software", Beijing:Tsinghua University Press (2004).

The simulation results are good agreed with the practical produce data, verifying the accuracy of the numerical simulation analysis, which provide theoretical basis and effective guidance for improving process and increasing yield in practical production.
The numerical simulation results of flow field in mold.
The numerical simulation results of temperature field in mold.
Conclusion Internal flow field and temperature field in slab casting mold was the numerical modeled and coupling analysis, using ANSYS ICEM CFD and CFX.
The numerical simulation results conform to actual production data well, and verify the accuracy of the numerical simulation, which provide the theoretical bases and effective guidances for improving process and increasing yield in practical production.