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A Novel Simulative-Experimental Approach to Determine the Permeability of Technical Textiles Tim Schmidt1,a*, Florian Schimmer1,b, Aaron Widera2,c, David May1,d , Nicole Motsch1,e and Constantin Bauer2,f 1Institut für Verbundwerkstoffe GmbH, Erwin-Schrödinger-Str. 58, 67663 Kaiserslautern, Germany 2Math2Market GmbH, Richard-Wagner-Straße 1, 67655 Kaiserslautern, Germany atim.schmidt@ivw.uni-kl.de, bflorian.schimmer@ivw.uni-kl.de, caaron.widera@math2market.de, ddavid.may@ivw.uni-kl.de, enicole.motsch@ivw.uni-kl.de and fconstantin.bauer@zf.com Keywords: simulation, simulative-experimental approach, digital twin, CFD, calibrated simulation Abstract.
Figure 2: Visualization of the process for the model generation using micro-computer tomography Simulation.
Hydrodynamic compaction does not take place during simulation in FlowDict.
Simulation based on Digital Model and Digital Twin.
Verleye et al., “Permeability of textile reinforcements: Simulation, influence of shear and validation,” Comp.

Numerical simulation of MHD rectangular duct flow with FCI based on magnetic induction method Tianneng Xu1, a, Jie Mao1, b, Huachen Pan1, c 1HANGZHOU ZHEJIANG 310018, HANGZHOU DIANZI UNIVERSITY axutianneng@163.com, bmaojie@gmail.com, chuachen_pan@yahoo.com Keywords: MHD effect; Magnetohydrodynamic; FCI; rectangular duct flow.
The report of case with PEH is rarely seen since it probably requires a full 3D simulation to describe the flow velocity and electric current distributions around each hole.
In this paper, a commercial computational fluid dynamic (CFD) software FLUENT is used to simulate the MHD problem.
Numerical Simulation The structural material of rectangular duct is stainless steel, whose electrical conductivity is σw = 1.4×106 S/m.
Several velocity and pressure diagrams were obtained from the numerical simulation results of case1 and case2.

The internal flow of jet fan has been simulated using FLUENT software.By changing the length of exit duct and the angle of the exit cowl,a series of numerical simulation research has been done.The calculation results show that the length of exit duct and structure of exit cowl has obvious influence on jet fan aerodynamics performances and reasonable export structure can effectively improve jet fan aerodynamic performances.
In order to find jet fan outlet structure reasonable parameters and range of options, numerical simulation research has been done by changing the length of exit duct and the angle of the exit cowl.
Fig.3 is the relationship between flow rate Q and L/D, and data Q are export from the numerical simulation results.
Conclusion The internal flow of jet fan has been simulated using CFD technology.
Naser.Simulation of airflow and pollution levels caused by severe traffic jam in a road tunnel[J].Tunnelling and Underground Space Technology,2010 25:70-77 [4] Chen Kai, Pan Di-lin,Internal Flow Field Analysis of Jet Fans and The Influence of Hub Ratio,FENGJIJISHU[J].2013 (1) 15-21 [5] Pan Di-lin,Aerodynamics Performances of Tunnel Jet Fan,Materials Science and Engineering[J].2013 310-314

Residence time.Patrick Muscat et.al.using CFD platform in cement production line of 5000 t/d ammonia injection and selective catalytic reduction of NOx reduction simulation to researchthe denitration effect different positions, combination with the installation of different injection area,studied the rising flue SNCR device installed in rotary kiln, decomposition furnace wall.
Daniel; CFD-modelling of Selective Non-Catalytic Reduction of NOx in grate-kiln plants[J].

A simplified approach is proposed in order to reduce the computational effort of the simulations.
A decoupled thermo-structural simulation of the assembled actual engine during operating conditions has been performed.
The combustion gas pressure has been evaluated via 1D-CFD simulation of the whole engine and validated versus the experimental data obtained during bench tests of the engine equipped with a spark plug combustion pressure sensor.
Giacopini, “Multiphase CFD-CHT optimization of the cooling jacket and FEM analysis of the engine head of a V6 diesel engine,” Appl.
Kawabata, “Study of the simulation of piston skirt contact,” vol. 15, pp. 15–19, 1994

For example, in today’s automotive industry, state-of-the-art software tools are used with simulation techniques such as Finite Element Methods (FEM), Computational Fluid Dynamics (CFD), Multibody Simulation (MBS), Crash Simulations and Topology Optimization techniques, all of which reduce the overall development time and improve the accuracy and safety.
Alongside this, CFD simulations are also used to compute different wind loads on the structure.
Britter, CFD simulations of a tunnel fire—Part I, Fire Safety Journal.26.1 (1996) 35-62
Britter, CFD simulations of a tunnel fire—Part II, Fire Safety Journal. 26.1 (1996) 63-90
Sargent, Verification and validation of simulation models, in Simulation Conference, IEEE, 2007, pp. 124-137.

This study applied CFD software to analyze the effect of variations of gap thickness and rotating speed on the pressure in the gaps of the bearings and the stiffness of the spindle.
Analytical Approach Based on the finite volume method, this study utilized the laminar flow module of the CFD software, FLUENT, to solve the three dimensional Navier-Stokes equations to compute the pressure of air flow in the bearing gaps and the housing gaps in an aerostatic spindle.
To simplify the simulation, the following assumptions were made for the flow field: (1).
Simulation models To reduce the size of the mesh, only the front portion of the aerostatic spindle module, as shown in Fig. 1, was considered in building the models for analysis.
Rao: Simulation based on FLUENT and experimental research of porous aerostatic bearing, Master Thesis, Harbin Institute of Technology, China (2006) [3] J.M.

Through the simulation result we can learn that adaptive control is batter than the PID control.
The simulation model is shown in Figure2.
The simulation results is shown in the figure 3a) and 3b).
The simulation result is relatively ideal, when sinusoidal signal and step signal is input.
The CFD analysis of main valve flow field for double-nozzle flapper servo valve[J].

Numerical Simulation and Structure Optimization of the Main-Control Reversing Valve of Electrical-Hydraulic Hammer Shiwen DU a Yongtang LIb School of Material Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, Shanxi, 030024,China a tykddsw@126.com , bliyongtang@tyust.edu.cn Keywords: numerical simulation Hydro-finite element CFD Electrical-hydraulic hammer Abstract: Based on viscosity hydrodynamics and hydro-finite element theory, flow field of the main-control reversing valve of electrical-hydraulic hammer was simulated.
Oil fluid parameters, coefficient of viscosity µ=0.018N.s/m2, density 900kg/m3; payload type is transient flow. 3.1 Simulation of steady-state hydraulic force It is difficult to control the manipulation process of main-control reversing valve of 15KJ electrical-hydraulic hammer, according to analysis, which results from the resistance deriving from axial force of steady-state hydraulic force inside valve cavity.
Obviously at this time there are a number of axial velocity components at the valve port, which can compensate steady-state hydraulic force. 3.2 Simulations of inlet throttle and outlet throttle of slide valve There are two slide valve structures, and one is outlet throttle slide valve, and the other is inlet throttle slide valve.
Dynamic Simulation of Commutation Process of Minitype Hydraulic Directional Value.
Vol.34(2002):P489 [2] Mahesh C and Kwon T H, Accuracy and Efficiency of Multi-variant Finite Element For Three-Dimensional Simulation of Viscous in Compressible Flows.

A novel air purifier for trace SO2 removal and simulation of the purification effect Donglai Xie1, a, Jinhui Luo1, b 1 School of Chemistry and Chemical engineering, South China University of Technology (SCUT), NO.381, Wusan Road, Guangzhou, China 510641 adlxie@scut.edu.cn, bluo.jinhui@mail.scut.edu.cn Keywords: Air purifier, SO2, Design test, Numerical simulation Abstract.
Table. 1 Test results of different absorbing liquid to absorb SO2 Absorbing liquid H2O NaOH Na2CO3 Concentration (mol/L) 0.0001 0.0001 In-flow (m3/h) 70/80/90/100/110 70/80/90/100/110 70/80/90/100/110 Absorbing time (h) 0.5 0.5 0.5 Inlet SO2 concentration (ppm) 1/5/10 1/5/10 1/5/10 Outlet concentration (ppm) 0 0 0 Simulation of the air purifier ANSYS FLUENT is a fully functional, well-adapted and widely applied commercial CFD software in solving various flow problems, based on Finite Volume Method[7].
The purification effect of different amount of gas is simulated with FLUENT-software, the concentration in different monitoring surface and different zone were taken as the evaluation index of the result of the simulation.
Vol. 36 (2010), p. 179 [7] Jiang Li: Numerical Simulation on heat transferand flow resistane performance and fouling characteristics of spiral grooved tube (In Chinese).