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Online since: December 2023
Authors: Chang Jiu Li, Sen Hui Liu, Mahrukh Mahrukh, Li Zhang
The present paper focuses on a novel Computational Fluid Dynamics (CFD) modeling of mass transfer mechanisms of an inflight molten metal droplet leading to droplet oxidation control during APS.
In these simulations to estimate the oxygen absorption three different size particles of 30mm, 40mm, and 50mm are used.
These CFD computations include Hill’s vortex dynamics in the molten metal droplet to examine how Hill’s vortex control the onsite oxidation of NiAlC molten droplets during APS processes [5], [15], [16].
The domain geometry considered in the numerical simulations was 2D axisymmetric.
For further characterizing it can be seen from Fig. 3b that the experimental result of the carbon content in the coatings is consistent with that of the simulation, proving the credibility of the simulation result.
Online since: November 2012
Authors: Lei Liao, Jing Yu Wang, Xing Jun Hu, Zhi Zhang, Feng Tao Ren
The flow field of two cars was simulated numerically in the CFD commercial software of Cradle through computer when lane-changed overtaking based on the overlapping grid and the k-ω SST Turbulence model, and then the aerodynamic characteristics of two cars were obtained.
Dynamic simulation Research of Aerodynamic Characteristics during overtaking and crossing.
On CFD and Transient Flow in Vehicle Aerodynamics.
Development of Underbody Aerodynamic Simulation Using Automatically Generated Tetrahedral and Prismatic Cells.
Transient Aerodynamic Simulation in Crosswind and Passing an Automobile.
Online since: December 2023
Authors: Siti Machmudah, Mohammad Irwan Fatkhur Rozy, Nurdiana Ratna Puri, Arthanta Cracian, Umar Said, Rico Aditya, Achmad Luthfi, Muhamad Emaldi, Devita Adela, K. Kusdianto, Suci Madhania, Sugeng Winardi
Numerical models were developed using ANSYS CFD software, and model predictions were found to match experimental data for temperature and stress profiles.
Method Simulation using Computational Fluid Dynamics (CFD) to determine the effect of C-rate on the temperature of the NMC 18650 battery has been conducted.
The simulation was also continued by variating the type of the coolant using air and water.
s reference journals to determine the simulation's validity.
Jilte, “Three-dimensional CFD study on heat dissipation in cylindrical lithium-ion battery module,” Mater.
Online since: August 2005
Authors: M. Rohde, O. Baldus, D. Dimitrova, S. Schreck
Numerical Simulation of Laser Induced Modification Processes of Ceramic Substrates M.
In order to get more insight in the dominant process parameters, further simulations have been performed with variation of the laser power density.
The results of the simulation have been confirmed by experimental data.
The results of the simulation of the one-step injection process are shown in fig. 5.
Summary and Conclusion A numerical model has been presented for the simulation of laser induced surface modification processes of ceramics.
Online since: May 2011
Authors: Xin Gang Zheng, Ying Shu Liu, Wen Hai Liu, Hui Zhang, Yong Ling Li
The two-dimensional simulation is found to be very useful for a better understanding of the dynamic adsorption and separation process in an adsorber.
Furthermore, Mohamadinejad et al. [6] used a similar model as Germerdonk’s on the CO2 sorption simulation, where they clearly indicated the breakthrough concentration near the bed wall shortened in time relative to the center of the packed column.
Hence, an additional sink term is added in the momentum equation and the momentum source term is as follows: (5) The energy balance (6) The equation of state (7) Porosity (8) 2.3 Method of solution The simulation is conducted by using the CFD software Fluent where the above equations are solved numerically by the method of control volume.
The simulation visualized the processes of separation occurring inside the adsorber.
Although, only the first cycle of the separation process has been simulated by using the CFD software in this study, it does show its potential in improving an understanding of adsorption separation process and thereby to further improve the separation performance.
Online since: January 2012
Authors: Yuan Fu Cao, Ti En Zhang, Xiao Liu
Because the velocity at this point is unknown, the CFD simulation of jacket is carried out to determine the velocity of point 5 in different conditions.
Simulation of Cylinder Head Jacket.
The CFD simulation is carried out.
CFD Homogeneous Mixing Flow Modelling to Simulate Subcooled Nucleate Boiling Flow [J].
Online since: July 2014
Authors: Ramashankar Paswan, Kumar Sujit, Santosh Kumar Mishra, Jayanta Das, Ajit Kumar, N. Kumar
LITERATURE REVIEW Three dimensional CFD analysis and experimental test of flow force acting on the spool of solenoid operated directional control valve was explained by[1].It has been observed that Solenoid direct operated spool type directional control valves are often used in various machines and equipment.
To confirm the obtained results of CFD calculations a device for measuring forces acting along the axis of the spool was prepared.
Modelling, simulation and control of high speed nonlinear hydraulic servo system was explained by [8].
Lisowski 2013“Three dimensional CFD analysis and experimental test of flow force acting on the spool of solenoid operated directional control valve” Energy Conversion and Management 70 (2013) 220–229
[8] Dechrit Maneetham 2010“Modelling, simulation and control of high speed nonlinear hydraulic servo system” World Journal of Modelling and Simulation Vol. 6 (2010) No. 1, pp. 27 – 39.
Online since: June 2016
Authors: Sterian Danaila, Constantin Leventiu, Florian Vladulescu, Dragos Isvoranu
Consequently, the normalised RMSE errors for the two chemical equations reaction rates top 100% and building a reduced order model was not feasible based on the available CFD data.
The turbulence model used is the detached eddy simulation model (DES) [11].
The boundary conditions were the same as in the previous simulation [8].
The simulation can be performed either with a commercial or in-house code.
Consequently, the still large errors in the reconstruction of some of the variables (vorticity, CO mass fraction and shear strain rate), a reduced order model is not yet feasible based on the available CFD data.
Online since: May 2009
Authors: Qiao Ling Yuan, Shi Ming Ji, Li Zhang, Bin Gong, Y. Pan
Fig.2 Flow passage model Pressure and velocity simulation Making use of CFD[13] fluid analysis software, the simulation results of the pressure and simulation distribution are as follows: Fig.3 Residual curves RSM residual or maximum residual reflect the disparity between flow field and the simulative flow field, the smaller the residual, the better it is.
Through the simulation of the experiment, the residual is kept in an allowable range, so we can make a good interation calculation.
Fig.5 Velosity vector map From the CFD velocity simulations figure5, we can see that the velocity fluctuation in the pipeline doesn't vary much.
[13] Z.Z.Han, J.Wang,X.P.Lan: Fluid Engineering Simulation Calculation Examples and Application (Being Institute of Technology Press, 2004)
Online since: September 2019
This is followed by Chapter 3, by Fernandes Magalhães et al. who present a hydrodynamic study of the water/oil separation process in a hydrocyclone by Computational Fluid Dynamics (CFD).
This is followed by Chapter 6, by Verusca de Oliveira Lopes et al. who present an analysis of the performance of a concentrating hydrocyclone in the separation of ore and water by CFD.
In the fluid dynamics simulation, the Eulerian-Lagrangian approach and the Ansys Fluent software were used.
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