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Online since: September 2013
Authors: Bo Ning, Lian Hai Wang, Xu Sheng Wang, Xiu Fu Song
Yan Ru-jian[6] simulated 2D regular wave and irregular wave by solving the Navier-Stokes equation in the CFD software Fluent with VOF method.
LIANG Xiu-feng,YANG Jian-min,LI xin,etc.Numerical simulation of irregular wave[J].Journal of Ship Mechanics.2010,14(5):481-486
Simulation of the Deformation and Burst of a Viscous Drop in Simple Shear Flow Through a Volume of Fluid Method[J].
Numerical simulation of wave-generation in a deep tank[J].
Numerical simulations of three-dimensional internal solitary waves within a numerical flume[J].
Online since: May 2014
Authors: Michael A. Petrov, Pavel A. Petrov
As a part of the research the numerical simulation of the process was carried out.
Through the simulation in any CFD-code, e. g.
Simulation setup General FE-code description.
Probably the reduction of time step can clear the temperature gradient pro simulation step in a run.
This fact strengths the obtained simulation results for the thermal problem, showed in Fig. 1, there the temperature values were in range 0,2 – 1°C pro simulation step.
Online since: June 2012
Authors: Zi Dong Hu, Hao Jun Hu, Yuan Han Wang
Studies on Galloping of Iced Conductor based on Tower-Line Coupling System –Aerodynamic loads Hu Haojun, Wang Yuanhan, Hu Zidong School of Civil Engineering & Mechanics, Huazhong University of Science and Technology, Wuhan, Hubei, China haojunzy@sohu.com, yhwang0062@163.com, huzd20020307@126.com Keywords: transmission tower-line system, mechanic model, aerodynamic loads, CFD Abstract.
The computational fluid dynamics module (CFX) was used for the numerical simulation of the aerodynamic characteristics of iced conductor.
Introduction Studies on galloping mainly focus on the generation mechanism, wind tunnel test and numerical simulation of galloping.
In terms of wind tunnel simulation test of iced conductor galloping, the difficulty and costs would be too large to support, thus not being studied extensively.
As for numerical simulation, the following aspects are adopted, including the simulation by computational fluid dynamics, and the simulation of galloping of iced conductors by finite element method and superposition method of mode of vibration.
Online since: July 2014
Authors: Ji Guo Zhou, Zhao Tong Hu
The Aerodynamic Characteristics of Bus in Different Lateral Locations of Steel Box-Girder Bridge Jiguo Zhou, Zhaotong Hu School of Highway, Chang’an University, Xi’an 710064, Shanxi, China Zhoujiguo_1986@126.com Keywords: vehicle-bridge system; numerical simulation; aerodynamic characteristics; critical wind speed; traffic safety Abstract: Choosing bus as the research object, the aerodynamic characteristics of bus in the coupling of wind-vehicle-bridge system were analyzed by CFD (Computational Fluid Dynamics) numerical algorithm.
Choosing the bus driving on the steel box girder bridge as the research model and applying CFD (Computational Fluid Dynamics) numerical simulation method, the main goal of this paper is to analysis the differences of aerodynamic characteristics of vehicle in different lateral lanes on steel box-girder bridge under the natural wind loads.
Online since: November 2014
Authors: Lyes Douadji, Wei Wei Du
Simulation in 2D.
a c b Figure 4: Domain of simulation.
This explains the fact that the speed of the sintering obtained during simulation CFD is higher compared to the ideal model of Lontz and the experimental tests.
The sintering speed obtained by the CFD is higher at the speeds obtained by the ideal model of Lontz and the experimental tests.
The results of simulations are the first but representative at the coalescence of two grains.
Online since: May 2014
Authors: Meng Huai Wu, Abdellah Kharicha, Andreas Ludwig, Ebrahim Karimi-Sibaki, J. Korp
Over the last decades, attempts have been made to predict the melt pool shape of an ESR ingot using CFD models [4-6].
The required modeling equations are implemented in the commercial CFD software, FLUENT-ANSYS v.14.5, using User-Defined Functions (UDF).
The simulation results were verified against experimental ingot (Fig. 2(c)).
Different interdendritic melt flow and different shape of the melt pool were predicted in the two simulations.
Holzgruber, CFD Modeling and simulation in materials processing, Wiley publication, USA, 2012, pp. 139-148
Online since: January 2015
Authors: Feng Li, Hong Liang Yu, Ping Qu, Feng Bo Zhang, Wen Juan Zhao, Jia Lin Wan
This paper built a combustion model of marine dual fuel engine by AVL FIRE software, based on the dual fuel engine emissions test data, then numerical simulation of the combustion process was carried and analyzed the characteristic in combustion process of marine dual fuel engines.
K-zeta-f two-equation turbulence model was selected to simulate cylinder flow field of the internal combustion engine in the CFD software[1].
The object of simulation was combustion process of marine dual fuel engine.
CFD in IC- engine spray and combustion simulation: Current status and future development.
Numerical Simulation of Diesel Ignited Dual Fuel Engine Based on the Finite Volume Method.
Online since: December 2013
Authors: Oliver Sommer, Daniel Moller, Günter Wozniak
Numerical thin liquid layer simulation For the numerical approach we used a commercial available CFD code, termed STAR-CCM+ from the company cd-adapco.
Figure 12: Numerical result of a typical liquid layer thickness distribution at 2 curved solid surfaces at t = 20 s Since an effective simulation means an optimal spatial and temporal resolution in combination with the real time effort of one simulation including post processing, verification simulations with different resolutions of the numeric mesh and transient time steps were performed (Fig. 13).
Since the computational resources were limited, the simulation time ended with 20 seconds in each simulation run.
This is due to the ideal initial conditions in the numerical simulation.
Furthermore, the simulation shows the liquid layer thickness distribution on the curved part of a solid, too.
Online since: October 2013
Authors: Arash Radman, Yi Min Xie, Zhi Hao Zuo, Ji Wu Tang, Xiao Dong Huang, Xiao Ying Yang
Computational Fluid Dynamics (CFD) is an emerging technique for fluid/structural analysis by numerical simulations.
CFD substantially reduces the lead time and costs in design and production compared to traditional wind-tunnel testing approach.
Despite its capabilities, CFD has not yet found many applications in civil engineering.
An attempt [15] was recently made to integrate the latest developments in BESO with CFD for the conceptual design of building structures.
The wind fluid analysis was simulated using CFD and the structural response to the wind load obtained from CFD was calculated with FEA.
Online since: November 2010
Authors: Chun Lei Shao, Bo Qin Gu, Xing Lu Huang
China a jy0321scl@163.com, b bqgu@njut.edu.cn, c xlhngd@163.com Keywords: Volute casing, Strength, Stiffness, Centrifugal pump, Numerical simulation Abstract.
The strength and stiffness of the volute casing made of PMMA used for PIV measurement were investigated by fluid-structure interaction (FSI) simulation in consideration of the impeller-volute interaction.
Because the deformation of the volute casing has a relatively small effect on the flow field in centrifugal pumps, CFD and FEA solutions can be conducted independently, with loads transferred in only one direction.
The fluid pressure and shear stress obtained by CFD analysis were loaded on the inner surfaces of volute casing and suction chamber.
The method for calculating the strength and stiffness of the volute casing by fluid-structure interaction simulation using FLUENT and ABAQUS software was proposed, and a volute casing suitable for the present research was designed.
Showing 2961 to 2970 of 5269 items