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Online since: April 2014
Authors: Yong Hong Li, Yong Huang, Ji Chuan Su
Spalart-Allmaras one-equation turbulent model was used for simulations.
CFD analysis of the low-speed aerodynamic characteristics of a UCAV.
M., "Navier-Stokes Simulation of Burst Vortex Flowfields for Fighter Aircraft at High Incidence,"Journal of Aircraft, Vol. 28, No. 10, 1991, pp. 638-645
Analysis of Delta Wing Vortical Substructures Using Detached-Eddy Simulation[J].
A., Development of a Common Research Model for Applied CFD Validation Studies.
Online since: April 2014
Authors: Guo Qing Zhang, Wen Yong Xu, Zhou Li, Yang Liu
The computational fluid dynamic (CFD) software was used to calculate the velocity field in atomization chamber of spray forming equipment.
The simulation model is based on the following assumptions: (a) Nozzle structure is a circular gap.
The present simulation work has been conducted with the CFD software Fluent, some parameters are set up as follows: (a) Atomization gas: nitrogen (compressible).
Therefore, only half of an axial section of the atomization chamber needs to be calculated in a 2D simulation.
Anderson, A coumputational fluid dynamics (CFD) investigation of the wake closure phenomenon, J.
Online since: December 2011
Authors: Xiao Xia Wang, Liang Hou, Lei Gang Liu, Ze Ning Xu
This paper offers to watch the changes of flow profile within the column by the application of simulation software ANSYS CFX .Besides, according to the distribution of flow profile, the traditional column has been done a lot of dynamic simulation, especially the stigma part of the column.
The Simulation and optimization of fluid within chromatographic column.
As the boundary conditions of various parts are different, This paper uses software ICEM CFD to mesh and optimist the grid on the column, distributor, and some catheters [2], the grid sets relatively dense in the important part or the greater gradient part, and sparse in the unimportant part .
Summary (1) According to the simulation above, if the distributor’s design is improper, two conditions often occur.
Computational Fluid Dynamics-CFD software principles and applications.
Online since: June 2014
Authors: Dong Zhao, Yan Tao An, Ru Jian Ma
Internal flow field and noise of outlet blockage fault and trouble-free for control valve are studied by CFD.
In this paper, based on the analysis of easily blocked parts, the outlet blockage fault is focused to research.3D flow model of outlet blockage fault and trouble-free for control valve are established, the internal flow field and noise distribution are simulated by CFD, the results provides the theoretical foundation for further study on the blockage fault of control valve.
Fig. 2 3 d model of outlet blockage Fig. 3 Flow channel model of outlet blockage Simulation Pretreatment Before the analysis of internal flow field, flow channel model is need to meshing, and the simulation parameters should be set.
Fig. 11 Trouble-free local acoustic power Fig. 12 Outlet blockage acoustic power Conclusion Establishing the valve trouble-free and outlet blockage flow model, and applying the CFD numerical simulation of internal flow field and noise, obtained the following conclusions
References [1] Yantao An, Rujian Ma, Yong Wang, Simulation and Analysis the Internal Flow Field of Control Valve Bonnet Leakage, Applied Mechanics and Materials [J], 2013, 425, 2078-2081
Online since: March 2010
Authors: Hui He, Zhen Hua Xu, Jiang Hua Liu, Yan Song Wang
In the recent years, commercial computational fluid dynamics (CFD) software has become an important approach in the EGR cooler studies [3].
Basic background The CFD method was derived based on the fluid governing equations.
Simulation and verification Assumed Conditions.
Simulation.
The errors of the simulation results are less than 5%, which satisfy the requirement accuracy of numerical simulation.
Online since: September 2016
Authors: Bernhard A. Schrefler, Francesco Pesavento, Matteo Pachera, Pierfrancesco Brunello
For the simulation and the modeling of a fire several approaches are available [3-4], the most accurate, but computationally expensive one, is the computational fluid dynamics (CFD).
In this sense, an initial attempt applied to steel structures was done by Zhang in [5] who used the results obtained from the CFD simulation in a pure thermo-mechanical solver.
In particular, for the structural analysis a set of boundary conditions will be calculated from the CFD simulation, including both heat and mass transfer.
Further developments in this research, will include a “two ways” coupling with which the results obtained from the FEM analysis of the solid domain will be used as boundary conditions for the CFD simulation.
Fig. 7: Stress YY distribution inside the slab after 1300 s of simulation.
Online since: December 2016
Authors: Pavel Uher, Petr Blasinski, Aleš Rubina
Because conventional analytical methods for solving complicated case are insufficient, so there is selected prediction of thermal prediction by using CFD modelling.
Physics and Boundary Conditions, Pre-Processing It was necessary to create a simplified geometric model of simulated domain (see Figure 5) for CFD simulation.
Simplified geometric model for CFD.
The simulation is solved as three-dimensional, steady, stationary.
The simulation considers only overpressure ventilation at this space.
Online since: August 2017
Authors: Wen Guo Huo, Yuan Fa Ding, Lan Zhang, Xiang Dong Su
Lastly, the computational fluid dynamics (CFD) simulation was conducted to study the turbulent gas-solid two-phase flow in the wheel cavity, which can be used for the optimized design for the wheel.
CFD modeling and Simulation Modeling.
Simulation results and analysis.
Yang, The numerical simulation on internal flow field in 6U-type centrifugal pump, Machinery, 35 (12) (2008) 24-26
Wang, Computational fluid dynamics analysis: Principle and application of CFD software, Tsinghua University Press, Beijing, PRC (2004).
Online since: April 2016
Authors: Al Khalid Othman, Hushairi Zen, Mohd Azlan Ismail
ANSYS CFX software was used as the Computational Fluid Dynamic (CFD) simulation tool in this study.
Manufacturer’s Performance Data Sheet and Simulation Analysis at 8.0 l/s HBEP (m) PBEP (kW) ɳ (%) Manufacturer’s Data Sheet Simulation Results 14.00 13.37 1.70 1.45 65.00 72.42 Table 2.
The simulation performance curve yielded similar characteristics as the manufacturer’s data.
ANSYS CFX software was used as simulation tool to conduct the analysis.
Lakhera, "CFD for Centrifugal Pumps: A Review of the State-of-the-Art," Procedia Engineering, vol. 51, pp. 715-720, (2013)
Online since: November 2012
Authors: Mei Dan
Advanced CFD technique is able to simulate the movement of particles in rotating machinery[6~7], then experimental data can prove the reliability of CFD methods[8~9].
Meanwhile the CFD methods associated with erosion model can successfully predict the fluid mechanical wear and tear.
This means that the computational model geometry during simulation was invariable.
Geometric model and meshes division of impeller Computational domain of three-dimensional geometric model is build by software ICEM CFD, as shown in Fig. 1.
In all simulations, computations were performed until the residuals of mean velocities, pressure and turbulence quantities were less than 1 × 10−3.
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