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CFD Simulation of Coaxial Jet Mixer using RANS Turbulent Models Ku Zilati Ku Shaari1,a, Afiq Mohd Laziz1,b, Kerstin Heinen2,c, Mokhtar Awang1,d, Suriati Sufian1,e, Shuhaimi Mahadzir1,f 1University of Technology PETRONAS, Bandar Seri Iskandar, 31750 Tronoh, Perak, Malaysia. 2BASF SE, GCT/S – L540, 67056 Ludwigshafen, Germany akuzilati_kushaari@petronas.com.my, bafiq_laziz@hotmail.com, ckerstin_heinen@basf.com, dmokhtar_awang@petronas.com.my, esuriati@petornas.com.my, shuham@petronas.com.my Keywords: Turbulent flow, CFD, RANS model Abstract.
The simulation was done by using an open-source CFD tools called OpenFOAM.
Simulation Set-up As far as the overall flow fields are concerned, the predictive mean velocity data are obtained by CFD simulations for conventional geometrical configurations showed quantitatively good agreement with the experimental data, in use of the standard k-ε model [9].
Turbulence model in CFD, University of Ljubljana
Evaluation of OpenFOAM for CFD of turbulent flow in water turbines. 23rd IAHR Symposium – Yokohama, October 2006

Aeroelastic- Acoustics Numerical Simulation Research Xi Pei1,a , Min Xu2,b,Dong Guo3,c College of astronautics, Northwestern polytechnical University, Xi’an 710072, china apeixi5297556@163.com, bxunmin@nwpu.edu.cn, cguodong@nwpu.edu.cn Key words: Aeroelastic-Acoustic, LES, CFD/CSD/CAA coupling, Multidisciplinary Abstract.
The CFD/CSD/CAA coupling is used to simulate rockets cabin.
A new method which CFD/CSD/CAA coupled solution is present.
Fig.2 shows the mode shapes mapped into CFD surface grid.
This methodology employs CFD/CSD/CAA coupling.

In this paper, a parametric modeling and simulation method is proposed, which is based on CAD/CFD tools.
Therefore, parametric modeling and simulation technology for launch vehicle based on CAD/CFD integration is becoming research focus [5-7].
Automatic simulation for aerodynamic analysis of launch vehicle is achieved by integrating CFD tools, such as CFD-GEOM, GAMBIT, FLUENT, etc.
Mesh parameters determine the quality of mesh model, and seriously impact the accuracy and efficiency of CFD simulation.
Based on the mesh model, engineers can get aerodynamic performance of launch vehicle through CFD simulation.

Simulation of Dust Control in Coal Mining YANG Xiudong and JIN Longzhe Civil and Environmental Engineering Institute, University of Science and Technology Beijing, Beijing, China xiudongyang@yeah.net Keywords: Dust Control, Structural Engineering, Coal Mining, CFD Abstract.
Computational Fluid Dynamics(CFD)is one of the emerging fields for research in dust control area, although, application of CFD methods for solving mine ventilation problems.
Hence, the line-curtain simulation conducted in Model was satisfactory.
Table.2 CFD models evaluating leakage paths along the line curtain.
Freitas: Perspective: Selected benchmarks from commercial CFD codes.

The numerical calculation simulation based on CFD can be considered as signals obtained by ideal sensors, and there are no noise signals.
An economical, safe and dependable numerical simulation model of state monitoring and analyzing for the research of fault diagnosis theory and mechanism is provided by the propeller blade fracture fault monitoring system based on CFD.
The data signals are extracted by data acquisition system in the fault monitoring and diagnosis system of practical engineering, while the data signals are extracted by numerical simulation in the diagnosis system based on CFD.
The numerical simulation results of the fluctuating pressure of the duct inner wall monitoring points of ducted propellers are shown in Fig.2-5.
Hydrodynamic performance prediction of some propeller based on CFD[J].

This paper presents CFD analysis of shrouded diameter in aerosol sampling inlet.
The design optimization was performed with the computational fluid dynamics (CFD) code FLUENT.
The objective of the simulation is to minimizing disturbance to the aircraft which carries aerosol sampling inlet.
Simulation method The numerical model was set up and run using the Computational Fluid Dynamics (CFD) code.
ANSYS ICEM CFD grid division technology and its examples.

While, CFD fluid flow process the mechanism modeling based “virtual” system model test.
It is an effective method to use CFD executing transient simulation and to use generated data substitute the data which obtained in the actual control system.
Establish Drying Kiln Transfer Function By Combine CFD Numerical Simulation And Syster Identification Theroy Fluent software can be used in fluid, heat-transmit, chemical-reaction and other concerned field.
CFD makes numerical simulation of the control-system by established fluid-quality equation, momentum equation, energy equation, spread equation and others which reflect the nature of physical-science.
It can be seen that using CFD software under the dynamic state of the principle of combining the method of numerical simulation and system identification is validity for nonlinear.

CFD simulation on circulation within the liquid slug under Gas-Liquid Taylor flow in circular capillary Yunfeng Xie1,a, Xubin Zhang1,b, Yan Wang1c, Wangfeng Cai1,d School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China ayunfeng_xie@126.com, btjzxb@tju.edu.cn, cjoywy@126.com, dwfcai@tju.edu.cn Keywords: CFD simulation; circulation; Taylor flow; capillary.
Abstract: Computational Fluid Dynamics (CFD) was used to simulate the circulation within the liquid slug on gas-liquid Taylor flow in circular capillaries.
In this paper, the CFD simulation was adopted to study the circulation inside liquid slug during gas-liquid Taylor flow.
A finite volume based commercial CFD package, FLUENT, was adopted to carry out simulation.
CFD simulation performed under a coordinate system moving with the same velocity of gas bubble vb.

Use of CFD to Study the Resistance of Sprint Master Canoe Omar Yaakob1,2, Yasser M.
The finite volume code Ansys CFX has been used for carrying out the numerical simulations for the hull form of the canoe at the same experimental speeds.
The grid generator ICEM CFD has been used for building the grids for the RANSE code solver.
In the interface-capturing method, both air and water are considered in the simulation and treated as two effective fluids.
The grid generator of the RANSE code (ICEM CFD) was used for generating the unstructured tetrahedral grids that were required for Ansys CFX solver.

The pump performance curves are predicted based on the flow simulation, showing that efficiency rises up while the pump outlet is set at the backward stages.
Finally, CFD results are verified by comparing predicted performance curves with the experimental ones.
Fig. 1 CFD domain and tetrahedron mesh Solver and discrete scheme for governing equation.
Predictied curves, as shown in Fig. 5, are compared with test ones in order to verify valid and accurency of simulation.
(a) Head (b) Efficiency Fig. 5 Comparison between prediction and test performance curves Conclusions According to the flow field and pump performance by CFD simulation, the efficiency of multi-stage centrifugal pump drops down while the pump outlet moves to the foreward stages.