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Online since: August 2022
Authors: R.S. Santos, Vital Araújo Barbosa de Oliveira, Thayze Rodrigues Bezerra Pessoa, Pierre Correa Martins, Anderson Melchiades Vasconcelos da Silva, Morgana Vasconcellos Araújo, Antonio Gilson Barbosa de Lima, Alanna C. Sousa, Marcia R. Luiz, Adriano S. Cabral
The geometry was built in ICEM-CFD® software which belongs to ANSYS 15.0 package.
Abdelrahman, Numerical investigations of convective heat transfer for lattice settings in brick tunnel Kiln: CFD simulation with experimental validation.
Lima, On the Use of CFD in Thermal Analysis of Industrial Hollow Ceramic Brick.
Lima, Industrial ceramic brick drying in oven by CFD.
Araújo, Numerical simulation via CFD of the drying of industrial ceramic bricks, Thesis (Doctoral in Process Engineering), Postgraduate Program in Process Engineering, Center of Science and Technology, Federal University of Campina Grande, (2019) 212f.
Online since: November 2012
Authors: Yun Yang, Jun Tao Yang, Jing Liang
Full-scale experimental and numerical simulation of fire in a High-rise Residential Building Juntao Yang1, a, Yun Yang 1,b and Jing Liang1,c 1 Shanghai Fire Research Institute of MPS, 918 Minjing Road, Shanghai 200438, China asfriyjtao@163.com, bsfriyy@gmail.com, c jing.ljlj@gmail.com Keywords: fire; high-rise residential building; fire experiment; CFD simulation Abstract.
Also the experimental data verifies numerical simulation effective.
Simulation model for class A Fig.11.
Analysis and discussion about the numerical simulation results Fig.12 is the temperatures trend chart of the measuring points in class A fire numerical simulation.
(2) The results show that there is little distance between the experiment data and numerical simulation data, which prove that study the smoke movement for lift evacuation by using CFD software FDS is practicable.
Online since: July 2015
Authors: Sumesh Narayan, Niranjwan Chettiar, Jai Nendran Goundar, Ashneel Deo
The hydrofoils were tested through computational fluid dynamic simulation.
The inlet speed is varied accordingly for different simulations.
Through repetitive iterations and rotations of the blades during simulation determined that after 3 revolutions the results become steady shown in Fig 2.
CFD results have slightly under predicted the torque, since the CFD geometry did not have an axial shaft and frame as shown in Fig. 4.
CFD predicted maximum torque of 2.9 Nm at 40 rpm.
Online since: August 2011
Authors: Peng Li, Han Chen, Xue Dong Chen
Computational fluid dynamics (CFD) was employed to numerically calculate the air flow field.
Then, the numerical simulation study was carried out with the well-known CFD soft—FLUENT to obtain the load carrying capacity, stiffness and pressure distribution in the bearing clearance.
Table 1 Parameters of different restrictors Case Bearing code Restrictor type Supply hole diameter [mm] Supply hole height [mm] Spaceing distance between supple holes [mm] 1 1X0.30 Single hole 0.30 0.35 0 2 4X0.15 2X2 four holes 0.15 0.35 0.4 3 9X0.10 3X3 nine holes 0.10 0.35 0.3 Governing Equations of CFD Simulation and the Boundary Conditions Governing Equations.
Simulation Results and Discussions Validity of the Numerical Simulation.
Fig.3 Comparison of CFD results with experimental data in [9].
Online since: January 2016
Authors: Jiří Fürst
The numerical solution is achieved with finite volume method and the rotordynamic coefficients are evaluated from several simulations with different rotor precessions.
Two typical methods used for the prediction of stiffness and damping coefficients are the 3D CFD based method (see e.g. [9], [8], [4]) and the bulk-flow model (see e.g. [10], [3]).
The simulations presented in this paper were obtained by in-house finite volume code developed specifically for the analysis of seal flows.
One can see large difference in radial component of the force between 3D CFD results and the simplified bulk-flow code.
Rotordynamics of turbine labyrinth seals: a comparison of CFD models to experiments.
Online since: August 2013
Authors: M. Minervino, R. Örlü, P.H. Alfredsson, A. Hanifi, N. Tillmark, V.I. Borodulin, A.V. Ivanov, Y.S. Kachanov, D.G. Romano
To this aim, a design procedure based on seven steps has been defined and reported below. 1) Generation of a parametric CAD model for the swept-mounted airfoil installed in the wind tunnel with flat walls. 2) CFD mesh generation associated to the CAD model. 3) CFD flow simulations for the “infinite span” WT model, replacing solid sidewalls with periodic boundaries. 4) Extraction of typical streamlines shape from the CFD solution back to the CAD environment. 5) CAD design of the contoured sidewalls based on the reference streamline. 6) CFD mesh generation for the contoured WT configuration. 7) Flow simulation for the contoured WT configuration.
CFD Simulations.
CFD evaluations have been performed using CFD++, the commercial CFD code used by Piaggio Aero Industries, which is based on the finite volume method.
Further simulations for slightly modified configuration were performed by FOI using the EDGE code [4].
[3] Metacomp Technologies Inc., CFD++User Manual – Version 8.1, pages 531-533
Online since: October 2014
Authors: Kamarul Arifin Ahmad, Syed Mohammed Aminuddin Aftab
The values of experimental study and current CFD study are found to be in good agreement.
Simulation is carried out from 0º to 20º.
While the graphs clearly follow the trend and the simulation data does match the experimental results, there is a slight variation which is due to the computational errors from the CFD codes.
Figure 2: Comparison of expt [16] and CFD simulation current study CW Fig. 3 shows the velocity contours for the AoA range 0-20º.
Both the CW experimental and simulation show stall at 15º.
Online since: January 2013
Authors: Guo Liang Tao, Peng Fei Qian, Xiao Zhu, He Zuo, De Yuan Meng
The Simulation Study of a new-type Frictionless Pneumatic Cylinder Xiao Zhu1,a, Guoliang Tao1,b,Pengfei Qian1, Deyuan Meng1, He Zuo1 1The State Key Lab of Fluid Power Transmission and Control, Zhejiang University, Hangzhou, 310027, China axiaozhu@zju.edu.cn, bgltao@zju.edu.cn Keywords: Frictionless Cylinder, Air Bearing, FEM, Simulation Abstract.
Similar work has been done by Xue-Dong Chen and Xue-Ming He [3] with the help of CFD numerical method.
Renn and Hsiao [4] made an experimental and CFD study on the mass flow rate(MFR) characteristics of orifice-compensated aerostatic bearings.
They found that MFR calculated from the theory, which assumes orifice-type restrictor as a nozzle, might cause large error, and they modified the critical-pressure ratio of the restrictor based on the results of experiments and simulations.
Experimental and CFD study on the mass flow-rate characteristic of gas through orifice-type restrictor in aerostatic bearings.
Online since: July 2015
Authors: Krishna Murari Pandey, Pinku Debnath
A three dimensional computational analysis has been done by finite volume discretization method using ANSYS Fluent 14 CFD commercial software.
The simulation boundary conditions are provided to capture the wave properties near to the Shchelkin spiral wall as shown in Fig. 3.
This grid size is maximum smallest grid size for best meshing accuracy and less time consuming simulation.
Further simulations gives constant propagation velocity at δ=0.84m iso-surface distance.
Pandey, Effect of Blockage Ratio on Detonation Flame Acceleration in Pulse Detonation Combustor Using CFD, Applied Mechanics and Materials, Vol. 656, pp 64-71, 2014
Online since: April 2013
Authors: Han Chen, Xue Dong Chen, Jin Cheng Zhu
In order to capture details of transient turbulent flow, large eddy simulation (LES) is employed.
CFD Methodology.
In this study, the computational fluid dynamics (CFD) software ANSYS-Fluent is employed, and particularly, the large eddy simulation (LES) method is used to capture the transient turbulent flow field.
The air used in the simulation is assumed to obey the ideal gas law.
In order to justify our CFD model, the existing experiment data [7] on pressure distribution in an aerostatic bearing are utilized for comparison.
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