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Simulation of a wall jet flow over a rectangular cavity Fatima Madi Arous1, a, Amina Mataoui1, b, Abdellali Terfous2, c and Abdellah Guenaim2, d 1 LMFTA, Faculty of Physics, University of Sciences and the Technology Houari Boumediene; 16111, Bab Ezzouar, Algiers-Algeria. 2 LGCO, INSA; 24 bd. de la Victoire, 67084 Strasbourg, France.
The simulation of a turbulent wall jet flow over a rectangular cavity is realised by the low Re stress-omega model.
FLUENT 6.3 CFD code was used as the solver.
(4) CFD computations with the Reynolds stress transport equations maintain the production term in its exact form [12]
U=Ui ; V=0 ; k=ki  p=k= ω=0 p=0 p=0 Wall conditions Computational domain G F E D H B C C ' B' A Fig. 2: Boundary Conditions Results and Discussion Characterization of the incoming flow In order to verify the similarity of the wall jet incoming flow, we began this study by a simulation of a wall jet.

The Three-dimensional Unsteady Numerical Analysis of the Internal Flow Field of the New Control Valve Qu Dongyuea, Xu Jialeib , HuangYangyangc and Xie Xiaozengd College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, China aqudongyue@hrbeu.edu.cn, bxujialei1991@126.com,chuangyangyang1314@yeah.net dxiexiaozeng@hrbeu.edu.cn Keywords: control valve; unsteady flow; numerical simulation; pressure fluctuation Abstract.
This paper take the new valve as the research object, by computational fluid dynamics (CFD) software, the numerical simulation of the internal steam steady state flow field of valve normal work a typical opening in the process of opening is made, and obtain the internal flow field visualization distribution and flow characteristics of control valve.
The current domestic study of control valve stay in level of conventional engineering imitation and prototype performance, few numerical simulation of unsteady flow in the valve, and abroad for the vibration of the control valve adopted a negative test method to solve, not from the viewpoint of fluid dynamics to study the unstable flow control valve.
Choice the total pressure and static export as its import and export boundary conditions in the process of numerical simulation.
So in the next will mainly proceed transient simulation of 10% opening under pressure ratio is 0.585.

Fax: +86-10- 61772031 E-mail address: cqdong1@163.com Keywords: numerical simulation, grate combustion, dust removal.
According to simulation and practical experience, it is indicated that the mixing plays a key-role in the combustion of the furnance [5].
A commecial code FLUENT is used as the CFD solver [7].
The commercial code FLUENT has been employed to perform the simulation of gas flow in boiler.
Simulation has been performed to confirm the effectiveness of the device and the most favorable air ratio.

Simulation and experiment results are also presented to illustrate performance of a specific designed thruster.
We hope to provide useful ideas for propulsion system designed special for M-ROV by some simulation and experiment results.
A further investigation through CFD simulation by COSMOSFloworksTM can be used to compare performance of different lines of contours.
All the initial parameters are shown in Table 2. 2) Detailed design of the propeller based on the results from the preliminary design, using the momentum theory, lifting line / surface theory or the surface element theory, and the general circulation model, the geometric model is determined, such as angle of the screw thread. 3) Final design for the propeller based on the detailed design of the propeller and the theory which is used in step two, the performance of the propeller is verified by CFD.

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)

Simulations were performed with a radius ratio = 0.714.
To evaluate the heat exchange inside finned air-gap, computational fluid dynamics (CFD) is a powerful method to predict the complex flow problems, especially our case.
Grid Generation The mesh was created using ICEM CFD.
Before starting the simulation of the configuration of our study, several grids were tested in order to generate a good mesh.
Hudon, CFD analysis of turbulent convective heat transfer in a hydro-generator rotor-stator system, Applied Thermal Engineering. 130 (2018) 17–28

The simulation result of velocity contour is shown in Fig. 3.
The simulation results can be validated by experiment data provided by Leach et al. (1966).
The data obtained by simulation is useful for deciding lateral step between each trajectory.
The simulation results is consistent with experimental study in literature, hence, the proposed simulation methodology is helpful for predicting the flow behavior of jets used in WJISMF.
Numerical simulation of high speed turbulent water jets in air.

Nasif [3] developed L shaped heat exchanger and obtain its effectiveness by using CFD simulation.
Behnia, CFD simulation of air to air enthalpy heat exchanger, Energ Convers Manage. 74 (2013) 377–385.

(a) rectangular acvity (b) streamlined acvity 1 (c) streamlined acvity 2 Fig. 2 Two-dimonsional simplified models of sensitive cavity of three structures Solve with Finite Element Method The FLOTRAN CFD analysis of ANSYS software is an advanced tool used to study two-dimensional and three-dimensional flow field, which can be used to analyze the movement of air in cavity [4].
This simulation typically comprises modeling, loading and solution
Summary ANSYS-FLOTRAN CFD software is used to calculate two-dimensional flow field distribution of different thermal wires position in fluidic gyroscope sensitive element with rectangular cavity and two streamlined cavity structures.
Wang: Numerical Simulation Technology of Practical Engineering and its Practice (Northwestern Polytechnical University Press, Xi’an 1999).

This paper presents results obtained from the application of a computational fluid dynamics (CFD) code Fluent 6.3 to modelling of temperature in propane flames with air preheat.
Both experimental works and numerical simulation showed that increasing the temperature of the combustion air significantly increases the flame temperature.
In this paper, the application of PDF and EDM combustion modelling approach to the simulation of turbulent non-premixed propane flames with air preheat is presented.
Although Hjertager et al. [9] reported that the standard EDM model is not suitable for liquid-phase reactions; it has found extensive application in the simulation of turbulent reacting flows.
Solberg: CFD Modelling of Fast Chemical Reactions in Turbulent Liquid Flows, Computers and Chemical Engineering Vol. 26 (2002), p. 507-515 [9] I.R.