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Ltd, Shanghai, China Keywords: regenerative furnace, switching model, flow character, numerical simulation; Abstract.
So, on the basis of analyzing the burning and heat transfer mechanism, the physical and mathematical model of the heating section was built and the CFD was used to research the influence of four classical switching models on the flow profile.
Numerical simulation method Gambit 2.3 was applied to build the geometry model and mesh it.
Numerical simulation of the combustion[M].Beijing: Science Press, 1986
Numerical Simulation on the Effect of Switching Modes on the Thermal Process of a HTAC Reheating Furnac[J].

Focus on the unfavorable effects of initial operation to the performance of ground heat exchangers, a three-dimensional CFD simulation of full-scale ground heat exchanger under dynamic load was established to investigate the heat transfer performance of a 120-meter vertical U-Tube ground heat exchanger under different initial operating time.
In order to find possible reasons, a three-dimensional CFD simulation of full-scale ground heat exchanger under dynamic load was established.
Two simulations under the same annual dynamic load and different initial operating time were conducted.
This paper combined with the engineering practice and used building thermal environment simulation software DeST to calculate the dynamic load of a public building in Xi'an for the whole year.
☆ Yan Ling Guan, female, born in April 1957, Ph.D, professor, The College of Environmental Science and Engineering, Chang’an University, Xi’an, Shaanxi, 710054, China E-mail:guanyl@chd.edu.cn References [1] Ingersoll L R, O J Zobel, Ingersoll A C: Heat conduction with engineering, geological, and other applications (USA 1954) [2] Kavanaugh, S P: Simulation and experimental verification of vertical ground coupled heat pump systems (Oklahoma State University 1985) [3] Nairen Diao: Heat Transfer Analyses of Ground Heat Exchangers and Their Engineering Applications (Tsinghua University 2004) [4] Eskilson P: Thermal analysis of heat extraction boreholes( Sweden Lund University 1987) [5] Min Li, Alvin C.K.

Recently, Zhang, Li and Liao [8] have focused on the impact and deformation behaviors of spray particle by simulation.
For the FEA simulation model, the high pressure and high temperature Nitrogen gas was taken into a converging/diverging gun, also called de Laval nozzle, using Ansys/CFX® Computer Fluid Dynamics (CFD) simulation program.
For the finite element simulation, with all the previous settings and from the CFD model output parameters, the explicit dynamic analysis was run and finished normally after approximately ~0.25ms.
Fig. 3: FEM calculated strain contours in simulation.
The results show that FEM simulation and X-Ray diffraction outcomes are well comparable together (εXRD = 0.140 and εFEA = 0.169).

An Investigation into the Effect of Design Parameters on Plasma Density in DBD (Dielectric Barrier Discharges) Jong-Bong Kim1, a and Myoung-Soo Shin2,b 1Department of Mechanical and Automotive Engineering, Seoul National University of Science and Technology, Seoul, 139-743, Korea 2LED Lighting Development group, LG Innotek, Hyuam-Ro 570, Munsan-Eup, Paju-Si, Gyeonggi- Do, 413-90,1Korea ajbkim@seoultech.ac.kr, bmsoo82@lginnotek.com Keywords: DBD (Dielectric Barrier Discharges), Plasma, Simulation.
In this study, the plasma density is predicted by a coupled simulation of gas flow, chemistry mixing and reaction, plasma generation, and electric field.
The analyses were carried out using commercial software CFD-ACE [11], and analysis modules for fluid dynamics, chemical reaction and mixing, electromagnetic field, and plasma transportation were included.
The analysis is carried out using commercial software ‘CFD-ACE’.
Fig. 8 Photos of water droplet on the Polyamide film (a)before plasma treatment and after plasma treatment with electric power of (b)150 W, (c)180 W, (d)210 W, and (e)240 W Fig. 9 Measured contact angle and calculated ion density for (a) gas velocity and (b) electric power Summary A curtain type DBD plasma generator, which is often used for the surface cleaning of semiconductors, has been subjected to analyses using the commercial code ‘CFD-ACE’.

From the standpoint of CFD, this paper analyses the hydraulic clamping phenomenon and the effect of different kinds of pressure-equalizing grooves on hydraulic clamping force based on Fluent.
Fig. 5 Three-dimensional models for simulation Generate Mesh.
Then do the simulation for spool with one or three rectangular grooves.
Then do the simulation for spool with three triangular grooves.
[4] Fujun Wang: Principle and Application of CFD Software.

Also to further ensure its accuracy a CFD (Computational Fluid Dynamics) simulation will going to be conducted as a comparison test to the thermal camera attached in drone in order to monitor it’s efficiency.
However, BES (Building Energy Simulations) can provide CFD with dynamically changing boundary conditions for more extensive transient analysis.
Simulation discontinuities and researcher strategies to overcome them are next investigated in relation to the co- simulation mechanism [10].
For the purpose of further analyzing the precision of the data that will be obtained, CFD simulations of Fused High Definition RGB images and thermal images from infrared camera that was mounted to the drone will be performed.
Simulation to CFD for Verification of Results 1.

Additionally, computational fluid dynamics (CFD) analysis was also utilized to reveal the mechanism of the coolant flow behavior near the cutting zone [5].
(a) Perspective of CFD model, (b) VFOL distribution within the flank wear land Coolant Flow Visualization.
The general purpose of CFD code was utilized [5] to reveal the behavior of coolant flow around the entry of the tunnel at the minor flank face.
Stander k-epsilon model was used for describing the turbulent flow of the coolant inside the simulation area.
Finally, the actions of the coolant flow located within the width of the flank wear land were visualized by CFD analysis.

The simulation results indicate that depending on the height of the epitaxy room (h), the ∆T/mm can be changed from a negative to a positive value.
Simulation studies were also carried out to understand and optimize the gas flow and thermal behaviors.
A three-dimensional simulation of gas flow, heat transfer, radiation and magnetic field was performed to understand the gas flow behavior and thermal distribution in the reactor.
CFD-ACE+ software [6] was used for the simulation.
The three-dimensional simulation results indicate that gas flow behaviors and ∆T/mm values can be controlled depending on the h value.

In this paper, based on reducing noise and isolating vibration, the inner flow field of the centrifugal pump was emulated by CFD method.
They mainly studied by two kinds of methods: experimental and numerical simulation methods [2].
Numerical simulation of the dynamic effects due to impeller-volute interaction in a centrifugal pump[J].
Numerical simulation of unsteady flow in double-blade pump [J].
Dissertation 3-D unsteady numerical simulation and fluid-induced vibration for centrifugal pumps [D].

Investigation of Drag Reduction due to Dimpled Surfaces in Narrow Channels by Means of Flow Simulations Julian Praß1,a*, Jörg Franke2,b and Stefan Becker1,c 1Institute of Processmachinery and Systems Engineering, Cauerstraße 4, 91058 Erlangen, Germany 2Institute for Factory Automation and Production Systems, Egerlandstraße 7-9, 91058 Erlangen, Germany apr@ipat.uni-erlangen.de, bjoerg.franke@faps.fau.de, csb@ipat.uni-erlangen.de *corresponding author Keywords: CFD, RANS, Dimples, Drag Reduction Abstract.
All geometries were studied under two different flow conditions ReH ≈ 2 430 and ReH ≈ 4 860 using Reynolds averaged Navier-Stokes equations (RANS) within the commercial computational fluid dynamics (CFD) code ANSYS CFX®.
For this reason, the simulations were run until residuals fell below 10−6.
Afterwards, the average pressure difference ∆P was calculated from the last 300 iterations of each simulation which was uses as new boundary condition for a second simulation on the corresponding geometry.
This result proves the suitability of the meshes used for the simulations of dimpled walls.