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Online since: November 2011
Authors: Hong Bin Wang, Zhen Xiang Liang, Jun Jie Zhou, Ding Biao Wang
            
                Based on the method of CFD, a study on the structure parameters that affect the performance of chevron-type corrugated plate were carried out by simulating with the CFD software Fluent.
CFD technology has made a milestone for the research of plate heat exchanger. 2D CFD simulations with depth-averaged equation as a fast modeling tool were used by comparing 30 different geometries, and conclusion was drawn that pressure drop is more sensitive for geometrical modifications as the temperature change [3].
Y Cai, et al [4] carried out simulation on the actual model at a workstation.
Numerical simulation methodology The mathematical modeling involves the prediction of flow and heat transfer behaviors.
“Computational Fluid Dynamics - CFD software Principle and Application,” Beijing: Tsinghua University Press .2004,pp :128-129.
            
    CFD technology has made a milestone for the research of plate heat exchanger. 2D CFD simulations with depth-averaged equation as a fast modeling tool were used by comparing 30 different geometries, and conclusion was drawn that pressure drop is more sensitive for geometrical modifications as the temperature change [3].
Y Cai, et al [4] carried out simulation on the actual model at a workstation.
Numerical simulation methodology The mathematical modeling involves the prediction of flow and heat transfer behaviors.
“Computational Fluid Dynamics - CFD software Principle and Application,” Beijing: Tsinghua University Press .2004,pp :128-129.
Online since: February 2012
Authors: Jun Cheng Lv, Mao Qian Zhu, Xiang Bo Zhong
            
                Thermal Load Analysis   
The thermal load and stress of exhaust manifold are worked out by means of CFD-FEM coupling.
However, because the boundary meshes of CFD model and FEM mesh do not match with each other, before FEA task, it is necessary to map the thermal convection data on the CFD boundary to the FEM mesh by certain algorithm.
CFD Calculation and Results.
[4] Li Z.A., CFD Application on Design for Exhaust Manifold [J], Automotive Engineering, 2009, (12): 52-55
[6] Yang W.L., Numerical Simulation of Thermal Load on Engine Exhaust Manifold [J] ,Huazhong Science and Technology University Journal,2006,34 (12): 98-100 [7] Wang L.X., Analysis and Improvement for crack on Engine Exhaust Manifold [J], Shanghai Automotive,2007, (12):15-18
            
    However, because the boundary meshes of CFD model and FEM mesh do not match with each other, before FEA task, it is necessary to map the thermal convection data on the CFD boundary to the FEM mesh by certain algorithm.
CFD Calculation and Results.
[4] Li Z.A., CFD Application on Design for Exhaust Manifold [J], Automotive Engineering, 2009, (12): 52-55
[6] Yang W.L., Numerical Simulation of Thermal Load on Engine Exhaust Manifold [J] ,Huazhong Science and Technology University Journal,2006,34 (12): 98-100 [7] Wang L.X., Analysis and Improvement for crack on Engine Exhaust Manifold [J], Shanghai Automotive,2007, (12):15-18
Online since: May 2011
Authors: Zhe Zhang, Fu You Xu, Xu Yong Ying, Yong Gang Tan
            
                Large Eddy Simulation of Aerodynamic Forces on a Bridge Pylon 
Xuyong Yinga, Fuyou Xub, Zhe Zhang and Yonggang Tan
Faculty of Infrastructure Engineering, Dalian University of Technology, China
ayingxuyong@sina.cn, bfuyouxu@hotmail.com
Key words: Large eddy simulation (LES), Aerodynamic force, Pylon, Computational fluid dynamic (CFD), Reynolds averaged Navier-Stokes equations (RANS)
Abstract.
Accurate prediction of wind loads on such structures using computational fluid dynamics (CFD) is becoming increasing significant.
The techniques of CFD, such as large eddy simulation (LES), Reynolds averaged Navier-Stokes equations (RANS) model etc., have been widely used in wind engineering.
Thus, the results of the numerical simulation can be considered reliable.
From the present study, it is believed that the CFD simulation applying LES turbulence model can be successfully applied to the prediction of wind loads on a bridge pylon, whose wind tunnel tests are expensive.
            
    Accurate prediction of wind loads on such structures using computational fluid dynamics (CFD) is becoming increasing significant.
The techniques of CFD, such as large eddy simulation (LES), Reynolds averaged Navier-Stokes equations (RANS) model etc., have been widely used in wind engineering.
Thus, the results of the numerical simulation can be considered reliable.
From the present study, it is believed that the CFD simulation applying LES turbulence model can be successfully applied to the prediction of wind loads on a bridge pylon, whose wind tunnel tests are expensive.
Online since: September 2013
Authors: Ming Gu, An Min  Fu, Peng Huang
            
                The release angles  in these simulations were varied in intervals to give all unique combinations.
Improvement of the model Parametric study of damping coefficients In [11], a series of 2D free-flight simulations were performed at a Tachikawa number,, of 8.3 with the CFD-RBD model.
The improved model is referred to as QS (quasi-steady model) while the CFD-RBD model of [12] is referred to as CFD.
Simulation of 6DOF motion of 3D flying debris.
On the Use of Quaternions in Simulation of Rigid Body Motion.
            
    Improvement of the model Parametric study of damping coefficients In [11], a series of 2D free-flight simulations were performed at a Tachikawa number,, of 8.3 with the CFD-RBD model.
The improved model is referred to as QS (quasi-steady model) while the CFD-RBD model of [12] is referred to as CFD.
Simulation of 6DOF motion of 3D flying debris.
On the Use of Quaternions in Simulation of Rigid Body Motion.
Online since: February 2013
Authors: Ge Zhang, Hong Chun Yang, Wen Ding Wei
            
                azhangger@foxmail.com, bscorpionyhc@163.com, c474903127@qq.com
Key words: Flavor, toothpaste, perception, CFD, tidal volume, respiration 
Abstract.
The dynamic concentration of investigated flavor limonene under certain tidal volume was obtained with computational fluid dynamics (CFD) technology.
The flow and flavor field in the larynx, oral cavity and nasal cavity of human was studied with 3D simulation technics.
Figure 1 Schematic of simulation domain For the flavor transfer model, the boundary condition at the larynx bottom is complicated.
Mesh independence was checked out by ensuring calculated results change little under finer meshes during simulations.
            
    The dynamic concentration of investigated flavor limonene under certain tidal volume was obtained with computational fluid dynamics (CFD) technology.
The flow and flavor field in the larynx, oral cavity and nasal cavity of human was studied with 3D simulation technics.
Figure 1 Schematic of simulation domain For the flavor transfer model, the boundary condition at the larynx bottom is complicated.
Mesh independence was checked out by ensuring calculated results change little under finer meshes during simulations.
Online since: July 2022
Authors: Fabrice Schmidt, Rémi Gilblas, Yannick Le Maoult, Anh Duc Le
            
                A recent application of Computational Fluid Dynamics (CFD) to calculate the air flow field in an IR oven can be found in [9].
In this work, we propose a CFD approach for simulation of both natural and forced convection that occur inside an industrial oven, aiming to more precise prediction of the convective heat transfer along the preform height.
Heating simulation.
In order to evaluate the proposed approach, CFD simulations are compared with classical heat transfer coefficient correlation for vertical thin cylinder proposed in [10].
Both the natural and forced convective conditions that occur inside the industrial oven are considered using a CFD approach.
            
    In this work, we propose a CFD approach for simulation of both natural and forced convection that occur inside an industrial oven, aiming to more precise prediction of the convective heat transfer along the preform height.
Heating simulation.
In order to evaluate the proposed approach, CFD simulations are compared with classical heat transfer coefficient correlation for vertical thin cylinder proposed in [10].
Both the natural and forced convective conditions that occur inside the industrial oven are considered using a CFD approach.
Online since: October 2011
Authors: Shen Jie Zhou, Feng Ling Yang, Fan Jin Hu, Lei Shi
            
                The 3D flow field generated by two-stage impellers in the agitation of xanthan gum, a pseudoplastic fluid with yield stress, was simulated using the commerical CFD package.
Murthy and Jayanti [9] studied the mixing of power-law fluids with an anchor impeller using CFD modeling.
Numerical simulation Xanthan gum solution in water at 1.5% mass concentration is used in this work.
Simulations are considered converged when the scaled residuals for each transport equation are below 1×10−4.
Conclusions Computational fluid dynamics simulations are performed to study the mixing performance of two-stage impellers in the agitation of xanthan gum.
            
    Murthy and Jayanti [9] studied the mixing of power-law fluids with an anchor impeller using CFD modeling.
Numerical simulation Xanthan gum solution in water at 1.5% mass concentration is used in this work.
Simulations are considered converged when the scaled residuals for each transport equation are below 1×10−4.
Conclusions Computational fluid dynamics simulations are performed to study the mixing performance of two-stage impellers in the agitation of xanthan gum.
Online since: September 2014
Authors: Yu Wang
            
                Study on the Smoke Flow Regulation in Underground Space 
Based on the CFD Simulation
Yu  Wang 
Dept. of Safety Engineering, Technology Institute of Sichuan Normal University, Chengdu, China
cawn229@sohu.com
Keywords: Underground space; smoke movement regulation; FDS field simulation
Abstract.
Based on the analysis of the characteristics and reasons of the fire in the underground buildings, and with a (or a half) basement of the library in a university as its study object, the FDS of the CFD software is used to carry on a field simulation by setting two fire scenarios and five measuring points.
What is more, the state parameters of each location in the fire simulation process can be got with the help of numerical modeling study [9, 10].
The study method of this paper is FDS (fire dynamics simulation), a tool for fire dynamics simulation developed by the Tekes of the United States, and a model of Computational Fluid Dynamics (CFD) to simulate the fluid flow of the fire drive.
Moreover, in the concise analysis of the evacuation of the basement, only the best safety evacuation time has been found through the simulation.
            
    Based on the analysis of the characteristics and reasons of the fire in the underground buildings, and with a (or a half) basement of the library in a university as its study object, the FDS of the CFD software is used to carry on a field simulation by setting two fire scenarios and five measuring points.
What is more, the state parameters of each location in the fire simulation process can be got with the help of numerical modeling study [9, 10].
The study method of this paper is FDS (fire dynamics simulation), a tool for fire dynamics simulation developed by the Tekes of the United States, and a model of Computational Fluid Dynamics (CFD) to simulate the fluid flow of the fire drive.
Moreover, in the concise analysis of the evacuation of the basement, only the best safety evacuation time has been found through the simulation.
Online since: March 2014
Authors: Chong Yau Wong, Joan Boulanger, Gregory Short
            
                This is achieved through physical erosion experiments and Computational Fluid Dynamics (CFD) simulations which are well suited to interpret the effect of particle dynamics and fluid mechanics on erosion in multiphase flows.
This paper will employ both physical multiphase erosion experiments and CFD simulations to address this gap in the literature.
CFD Campaign CFD Modelling Details.
The simulations follow the recommended practices in multi-phase flow specifically (ANSYS, 2012), and CFD in general.
This shows that the current CFD erosion methodology to account for transient flow features requires further model refinement as it relates to low-Stokes number particle simulations.
            
    This paper will employ both physical multiphase erosion experiments and CFD simulations to address this gap in the literature.
CFD Campaign CFD Modelling Details.
The simulations follow the recommended practices in multi-phase flow specifically (ANSYS, 2012), and CFD in general.
This shows that the current CFD erosion methodology to account for transient flow features requires further model refinement as it relates to low-Stokes number particle simulations.
Online since: April 2012
Authors: Suo Huai Zhang, Ming Wei Wan
            
                To establish a CFD model of far infrared tunnel, get numerical simulation dates of far infrared tunnel by using Fluent soft, compared with experimental dates.
CFD simulation Physical model and meshing.
Figure 2 Gird of 2D modle Compare simulation results with experimental data.
Conclusions By using Fluent software at the numerical simulation of far-infrared tunnel, get the simulation dates, and then compared with the experimental datas.
Multi-belt dryer CFD simulation and wind field test [J], Drying technology and equipment, 2007, 5 (1) :15-21
            
    CFD simulation Physical model and meshing.
Figure 2 Gird of 2D modle Compare simulation results with experimental data.
Conclusions By using Fluent software at the numerical simulation of far-infrared tunnel, get the simulation dates, and then compared with the experimental datas.
Multi-belt dryer CFD simulation and wind field test [J], Drying technology and equipment, 2007, 5 (1) :15-21