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Online since: August 2013
Authors: Gui Qin Li, Peter Mitrouchev, Sheng Cai Zhang, Li Xin Lu, Cheng Gang Wang
Therefore, in order to make the simulation conditions more in line with the actual situation, a part of the area outside the analysis region is increased in the air curtain to simulate the free environment boundary.
The size of the increased simulation area is to be adjusted according to the numerical results.
Governing equations The outlet is treated as a simple opening in the traditional CFD.
,A two dimensional CFD model of a refrigerated display case,ASHARETARNSATINOS,4018,88一94
,CFD Simulation of Refrigerated Display
Online since: November 2012
Authors: Guo Guang Chen, Hong Tang, Hui Zhu He
An aero-thermo-elasticity method applied on the supersonic aircarft model TANG Hong 1,2,a ,CHEN Guoguang1 ,HE Huizhu 1,2 1College of Mechatronic Engineering, North University of China, China 2 Jinxi Industries Group, Taiyuan, China axichenght@126.com Keywords: Coupling; Aerothermoelasticity; Supersonic; Aircraft; CFD;CSD; Flutter; heat transfer Abstract.
In this paper, an ATE analysis of aircraft adopted by computational fluid dynamics/computational structural dynamics (CFD/CSD) methods, and compared with the traditional analysis, to provide analytical tools for the supersonic aircraft design.
Aileron buzz simulation using an implicit multiblock aeroelastic solver.
Vio, Grigorios Dimitriadis, "Aeroelastic system identification using tran-sonic CFD data for a wing/store configuration," Aerospace Science and Technology Vol.11,2007: 146-154
Online since: June 2014
Authors: Hai Ming Fu, Yu Fu, Fang Xu
Overall pressure drop of pleated aerosol filters The pressure drop of pleated air filters could be expressed as: (5) (6) Since The pleat angle in equation (6) could be expressed as : Therefore: (7) Where, is permeability of filtration medium,; is tilt angle of filtration medium, is face flow velocity, PRESSURE DROP SIMULATION IN PLEATED FILTRATION MEDIUM Fluid field flow was simulation calculated by CFD software package in this paper.
In order to save computer resources, from the 80 pleats to select the four parts of them to conduct simulation.
Comparison of simulation results and experimental results was shown in table 1.The results of the simulation were different from the results of literature [3], but the simulation results were relatively close to results of experimental tests, it indicating that the simulation method of this paper was acceptable.
The simulation results of RSM turbulence model were in agreement with results of experimental test. 4.
Minimization of Resistance in Pleated-Media Air Filter Designs: Empirical and CFD Approaches.
Online since: August 2011
Authors: Cun Xiang Liu, Jun Hui Zhang, Da Xu Zhao
Tests and simulations provide strong proofs for the structure design and motion control of the robot.
CFD (Computational Fluid Dynamics) software package is used to pre-process (including geometric modeling and mesh generation), calculate and analyze the flow field force acting on robot [7].
The dynamics equation based on space operator algebraic (SOA) method is established, and flow field acting on the robot pre-calculated by CFD software package, on this basis, the dynamic behavior of the in-pipe robot has been analyzed.
Numerical Simulation and Experimental Study for Vascular Interventional Treatment by Bifurcated Artery[D].
Collaborative Simulation Based on MATLAB/Simulink and FLUENT. 2007, 19(1) 1824-1827, 1856(in Chinese).
Online since: September 2013
Authors: Xu Su, Miao Wang, Jie Nan Dong, Tong Chen, Xiao Xu Li
Numerical optimization of oilfield heating furnace research Jienan Dong *1,a ,Xu Su*2,b,Tong Chen 3,c,Miao Wang4,d,Xiaoxu Li 5,e 1,2,4,5Northeast Petroleum University, China 3Daqing Oilfield Natural Gas Company, China a592153337@qq.com,b392884016@qq.com,ctrqchent@petrochina.com.cn, d55836068@qq.com,e1300555999@qq.com Keywords: Oil Field Heating Furnace, Numerical Calculation,Chemical Reaction Flow Abstract.In this paper,using numerical simulation tools PHOENICS for numerical simulation study is made on furnace gas burning in the hearth, and analyses furnace oil furnace temperature distribution in the flow field characteristics the internal flow field of oil field heating furnace hearth temperature distribution characteristics.
Table 1 Inlet boundary conditions Load condition air mass flow (m3/h) gas flow (m3/h) gas Temperature gas pressure kPa 20% 31 300 21 4.2kPa 60% 90 900 100% 150 1500 Numeric Simulation Results and Analysis 20% load condition.
(4) Because of the complexity of the problem, software functions and the limitations of computer performance, making some calculation results of the numerical simulation and the actual situation has certain deviation.
Computational Fluid Dynamics (CFD) and its application in engineering [J].
Multiple Block Grid Generation in the Interactive Environment [J]. 1990 [6] Fujunwang.Computational fluid dynamics analysis-CFD Software Principles and Applications [M].
Online since: October 2011
Authors: Wei Dong Shi, Yan Xu, Wei Li, Ting Jiang, Tong Tong Li
Analysis on Effects of the Blade Wrap Angle and Outlet Angle on the Performance of the Low-specific Speed Centrifugal Pump Wei Li a, Weidong Shi b, Ting Jiang c, Yan Xu d, Tongtong Li e Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Jiangsu 212013, China alwjiangda@ujs.edu.cn, bwdshi@ujs.edu.cn, cjiangtingdz@126.com, dxuyan15694@163.com, dlitongtong2010@126.com Key words: Centrifugal pump, Blade Wrap angle, Blade outlet Angle, CFD Abstract.
Numerical simulation of the internal flow within the centrifugal pump with the specific speed of 60 at different blade wrap angle and outlet angle is carried out.
This paper is based on the study of the efficient non-overload Submersible Sewage Pump, combined with the traditional hydraulic design and CFD simulation analysis on the flow field [5-7], using the commercial software FLUENT to simulate the flow field and predicting performance of the centrifugal pump with the specific speed of 60 in different blade outlet angle and wrapping angle.
is the flow-head curve, is the flow-power curve, is the flow-efficiency curve Fig.4 External characteristics prediction with different outlet angle is the flow-head curve, is the flow-power curve, is the flow-efficiency curve Fig.5 External characteristics prediction with different wrap angle Conclusions In this paper, numerical simulation of internal flow field and performance prediction of six design methods of submersible sewage pump have been obtained by selecting the amended k-ε two-equation turbulence model using the commercial CFD software Fluent , the results show that: (1) Under the constant wrap angle, the outlet angle and the impeller wake zone is small, the hydraulic performance is relatively good; under the constant outlet angle, that appropriately increase the wrap angle can reduce the solid particles on the impact of the blade outlet, reduce wear and improve the overall efficiency of the pump.
Online since: February 2014
Authors: Zhi‘en Liu, Yu Xu
CFD Analysis of the EGR Cooler’s Heat Transfer Performance Zhi’en Liu 1, a, Yu Xu 1, b Wuhan University of Technology School of Automobile, Wuhan, China 430070; a lzen@whut.edu.cn, b smile4xy@sina.com Keywords: EGR cooler; Heat-flux coupling; temperature field; Abstract.
A CFD simulation of the performance of an EGR cooler was carried out.
This model based on decomposition methods was applied to the temperature field simulation under different EGR cooler rate and the simulation results were in good agreement with the experimental results.
Pic.7 Simulation result of the EGR gas-outlet part.
We got the average temperature of the outlet through simulation.
Online since: December 2013
Authors: Mohammad Mobassher Bin Tofa, Adi Maimun, Yasser Mohamed Ahmed, Saeed Jamei, Ab Saman Kader, Hassan Abyn
Chaplin et al. [5] reviewed and compared Some existing CFD codes for riser VIV analysis Experimental details for a long riser under a variety of current conditions were presented by Trim et al. [6].
Chaplin et al. [5] reviewed Some existing CFD codes for analyzing VIV for practical riser.
Holmes et al. [8] used a fully 3D simulation approach to analyze riser VIV.
[7] Holmes, S., Oakley, O.H., Constantinides, H. (2006), “Simulation of Riser VIV Using Fully Three Dimensional CFD Simulations,” OMAE 2006-92124, 25th International Conference on Offshore Mechanics and Artic Engineering, Hamburg, Germany
Mukundan, H, Triantafyllou, M.S. (2006), “Riser Modal Identification in CFD and Full-scale Experiments”, Journal of Fluids and Structures, Vol 22, pp 905-917
Online since: September 2008
Authors: Naomi Kato, Hiroyoshi Suzuki
Next, it presents the development of CFD-based motion simulator for guidance and control of PLATYPUS[4].
We have developed a CFD-based motion simulator for guidance and control of PLATYPUS.
Point to Point (PTP) Control Simulation using Fuzzy Control Algorithm.
We analyzed fluid-structure interaction using FEM program and CFD program iteratively at each step.
Fukui: Motion Simulation of an Underwater Vehicle with Mechanical Pectoral Fins Using a CFD-based Motion Simulator, Int.
Online since: December 2013
Authors: Yi Fan Wu, Guo Lei Zhu, Hai Jin Cheng, Yu Han Zhao
Numerical simulation of corrugated depth on the performance of plate heat exchanger Yuhan Zhao, Yifan Wu, Haijin Cheng, Guolei Zhu Shanghai University of Engineering Science, China yuhanooo@hotmail.com Keywords: corrugation depth, plate heat exchanger, numerical simulation Abstract.
In this paper the numerical simulation is performed by using the CFD soft FLUENT.
In the following sections, numerical simulations will be explored on the flow resistance and heat transfer performance of the plate heat exchanger.
Numerical simulations on flow and heat transfer characteristics The sketch of the plate heat exchanger is shown in Fig. 1.
Simulation of stirred yoghurt processing in plate exchangers, Journal of Food Engineering, 2005, 69: 281-290
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