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Online since: September 2013
Authors: Jing Xie, Chen Miao, Zhi Li Gao, Zi Zhen Du, Jin Lin Zhu
CFD Simulation of Insulation Performance of Air Curtain Used in the Cold Store
Miao Chena, Xie Jing※b, Gao Zhilic, Du Zizhend, Zhu Jinline
Shanghai Engineering Research Center of Aquatic Product Processing and Preservation, College of food science and technology, Shanghai Ocean University, Shanghai, 201306, China
aemail: mcaibj@sina.cn, bemail: jxie@shou.edu.cn, cemail: gaozl2007@sina.com
Keywords: Cold store; Air curtain; CFD; Numerical simulation; Performance
Abstract.
Computational fluid dynamics (CFD) is used to analyse fluid flow and heat transfer against the numerical simulation by using computer.
CFD simulation of refrigerated display cabinets[J].
Proficient in CFD engineering simulation and case of actual combat[M].
Effect of design parameters on flow and temperature fields of a cold store by CFD simulation[J].
Computational fluid dynamics (CFD) is used to analyse fluid flow and heat transfer against the numerical simulation by using computer.
CFD simulation of refrigerated display cabinets[J].
Proficient in CFD engineering simulation and case of actual combat[M].
Effect of design parameters on flow and temperature fields of a cold store by CFD simulation[J].
Online since: February 2014
Authors: Anna Sedláková, Tomáš Renčko
CFD Model of an Underfloor Air Cavity Created from Special Fittings and its Verification Using a Laboratory Model
Tomáš Renčko1,a *, Anna Sedláková1,b
1Technical University of Košice, Vysokoškolská 4, 042 00 Košice, Slovak Republic
atomas.rencko@tuke.sk, banna.sedlakova@tuke.sk
Keywords: underfloor ventilation, special shaped unit, CFD simulation, laboratory experiment
Abstract.
To assess the airflow in the air cavity, recently commonly used CFD simulations can be employed.
In this article CFD simulation of underfloor air cavity created by special fittings is verified by means of laboratory experiment.
The paper aims to highlight the possibilities of CFD computer simulation programs to assess airflow in underfloor cavities.
Šikula, CFD simulation of ventilated air cavity, Building Simulation and Environmental Engineering 2008, 5. conference, Czech Republic, 2008
To assess the airflow in the air cavity, recently commonly used CFD simulations can be employed.
In this article CFD simulation of underfloor air cavity created by special fittings is verified by means of laboratory experiment.
The paper aims to highlight the possibilities of CFD computer simulation programs to assess airflow in underfloor cavities.
Šikula, CFD simulation of ventilated air cavity, Building Simulation and Environmental Engineering 2008, 5. conference, Czech Republic, 2008
Online since: July 2012
Authors: Ming Yue Liu, Jing Hu, Zhi Guo Zhang, Xian Zhou Wang, Qin Yang
CFD simulations were conducted for different structure of the valve to verify the performance of the valve after redesign the internal flow structure.
Gamboa [4] present a method for optimizing valve shape using two-dimensional CFD in conjunction with an optimization procedure.
Zhang [7] use the CFD software to study the regulation of V-ball valve opening under different flow characteristics and numerical simulation analysis, combined with the experimental data, optimizing the of V-incision to the flow characteristics of the ideal line to improve the regulation characteristics of the valve.
The well-known CFD package, Fluent, including the Gambit grid generator, has been used to perform all the numerical computations.
CFD simulations were conducted for different structure of the valve to verify the performance of the valve after redesign the internal flow structure.
Gamboa [4] present a method for optimizing valve shape using two-dimensional CFD in conjunction with an optimization procedure.
Zhang [7] use the CFD software to study the regulation of V-ball valve opening under different flow characteristics and numerical simulation analysis, combined with the experimental data, optimizing the of V-incision to the flow characteristics of the ideal line to improve the regulation characteristics of the valve.
The well-known CFD package, Fluent, including the Gambit grid generator, has been used to perform all the numerical computations.
CFD simulations were conducted for different structure of the valve to verify the performance of the valve after redesign the internal flow structure.
Online since: December 2014
Authors: Abbas Rahimi, Andy Cordonier, Abhilash J. Chandy
This study presents statistical analysis of particle size distribution from a CFD simulation of polymer devolatilization in contactor, that uses superheated steam to isolate the polymers.
CFD simulation of polymerization In this simulation, solution of dissolved polymer in solvent (cement) flows into the contact zone through an annular slit and the superheated steam cuts into the cement flow from both a circumferential inner wall slit and a circumferential outer wall slit; the mixture of steam and developing crumb then flows to the coagulator vessel (not shown here) through the outlet (Fig. 1).
The operating conditions employed for these simulations are presented in Table 1.
(5), fDTD,T=cFD,FTfDDfT(T)
(8) fD|TD|T=T*=cFD,FT≤T*fDD
CFD simulation of polymerization In this simulation, solution of dissolved polymer in solvent (cement) flows into the contact zone through an annular slit and the superheated steam cuts into the cement flow from both a circumferential inner wall slit and a circumferential outer wall slit; the mixture of steam and developing crumb then flows to the coagulator vessel (not shown here) through the outlet (Fig. 1).
The operating conditions employed for these simulations are presented in Table 1.
(5), fDTD,T=cFD,FTfDDfT(T)
(8) fD|TD|T=T*=cFD,FT≤T*fDD
Online since: April 2014
Authors: Yin Di Zhang, Long Fei Ruan, De Hua Liu
CFD Simulation Study of Gas-liquid Flow Regimes in Inclined Wellbore
Yindi Zhang1, 2a*, Longfei Ruan1,b and Dehua Liu1,c *
1Key Laboratory of Oil Gas Production, Research Center of Yangtze University and China National Petroleum Corporation , Yangtze University, Wuhan 430100, Hubei Province, P.R.
Computational Fluid Dynamic (CFD) was used to investigate gas-liquid two phase flow regimes for the inclined wells.
The simulation results were compared with the Taitel chart.
Conclusion In this paper, CFD was used to investigate gas-liquid two phase flow regimes for the inclined wells.
Henkes, CFD for Multiphase Flow Transport in Pipelines.
Computational Fluid Dynamic (CFD) was used to investigate gas-liquid two phase flow regimes for the inclined wells.
The simulation results were compared with the Taitel chart.
Conclusion In this paper, CFD was used to investigate gas-liquid two phase flow regimes for the inclined wells.
Henkes, CFD for Multiphase Flow Transport in Pipelines.
Online since: June 2013
Authors: Tomáš Renčko, Anna Sedláková
Comparison of Two Different Underfloor Ventilation Systems Using CFD
Tomáš Renčkoa, Anna Sedláková, PhD.b
Technical University of Košice, Civil Engineering Faculty, Vysokoškolská 4, 042 00 Košice, Slovakia
atomas.rencko@tuke.sk, banna.sedlakova@tuke.sk
Keywords: Underfloor ventilation, Reinforced concrete slab, Special shaped unit, CFD simulation
Abstract.
In this article two different underfloor ventilation systems are compared using CFD simulation.
Fig.3 Ground plane of church – Variant A Fig.4 Ground plane of church – Variant B CFD simulation ANSYS CFX [14] is used to assess the underfloor ventilation model examples.
Fig.13 Streamlines of air velocity in underfloor cavity – Variant A Fig.14 Streamlines of air velocity in underfloor cavity – Variant B Summary The paper aims to highlight the possibilities of CFD computer simulation programs to assess airflow in underfloor cavities.
[6] Kalousek M., Šikula O.: CFD simulation of ventilated air cavity.
In this article two different underfloor ventilation systems are compared using CFD simulation.
Fig.3 Ground plane of church – Variant A Fig.4 Ground plane of church – Variant B CFD simulation ANSYS CFX [14] is used to assess the underfloor ventilation model examples.
Fig.13 Streamlines of air velocity in underfloor cavity – Variant A Fig.14 Streamlines of air velocity in underfloor cavity – Variant B Summary The paper aims to highlight the possibilities of CFD computer simulation programs to assess airflow in underfloor cavities.
[6] Kalousek M., Šikula O.: CFD simulation of ventilated air cavity.
Online since: January 2013
Authors: Zhu Hui, Zhi Gang Yang
Taking testing safety and ground effect simulation into account, a platform was build for scaled model testing, as Fig. 2 shown.
CFD simulation method is more and more wildly adopted to optimize the aerodynamic performance of vehicle because of the great development of hardware and software [7~10].
Guidelines for CFD Simulations of Ground Vehicle Aerodynamics[C].
Aerodynamic Drag Simulation and Validation of a Crossover[C].
The Appropriate Use of CFD in the Automotive Design Process[C].
CFD simulation method is more and more wildly adopted to optimize the aerodynamic performance of vehicle because of the great development of hardware and software [7~10].
Guidelines for CFD Simulations of Ground Vehicle Aerodynamics[C].
Aerodynamic Drag Simulation and Validation of a Crossover[C].
The Appropriate Use of CFD in the Automotive Design Process[C].
Online since: December 2013
Authors: Milan Palko
Double-skin façade in Flotran CFD
Ing.arch.
The Aerodynamic simulation with CFD (Computational Fluid Dynamics).
There is a new way based on computer simulation.
In my case, the simulation program ANSYS based upon variation method of finite elements supported by FLOTRAN CFD module has been used for this method.
In ANSYS system there are two basic elements for FLORTAN – CFD.
The Aerodynamic simulation with CFD (Computational Fluid Dynamics).
There is a new way based on computer simulation.
In my case, the simulation program ANSYS based upon variation method of finite elements supported by FLOTRAN CFD module has been used for this method.
In ANSYS system there are two basic elements for FLORTAN – CFD.
Online since: May 2011
Authors: Yu Wang, Zhen Luo
The performance curves obtained by the CFD simulation has been compared with the results obtained from the analytical method.
1.
With a reliable CFD simulation, the performance parameters of gas turbine under different altitude can be obtained and analyzed. 2.
CFD Model of Stage Considering the sufficient fidelity and correction of simulation, in this study, the 3D simulation is applied in all CFD simulation for the compressor. 1D and 2D approximations are still used for certain turbo machinery components, such as the vaneless diffuser [10].
The information about the finest mesh which used to show the results of the CFD simulation is shown in Table 1 and Table 2, respectively.
Results and Analysis The results of CFD simulations by solving the compressor stage model at different altitude with corresponding rotational speed.
With a reliable CFD simulation, the performance parameters of gas turbine under different altitude can be obtained and analyzed. 2.
CFD Model of Stage Considering the sufficient fidelity and correction of simulation, in this study, the 3D simulation is applied in all CFD simulation for the compressor. 1D and 2D approximations are still used for certain turbo machinery components, such as the vaneless diffuser [10].
The information about the finest mesh which used to show the results of the CFD simulation is shown in Table 1 and Table 2, respectively.
Results and Analysis The results of CFD simulations by solving the compressor stage model at different altitude with corresponding rotational speed.
Online since: August 2010
Authors: Shi Wei Zhang, Zhi Jun Zhang, Li Li Zhao
A New Performance Estimate Method for Design of Storage-type
Domestic Electrical Water-Heaters based on the CFD Simulation
Lili ZHAO1,a, Zhijun Zhang2,b, Shiwei Zhang2,c
1
School of Mechanical Engineering, Shenyang University, Shenyang, China
2
School of Mechanical Engineering and Automation, Northeastern University, Shenyang, China
a
zhaolili0214@163.com,
b
zhjzhang@mail.neu.edu.cn, cshwzhang@mail.neu.edu.cn
Keywords: Electric Water heater, utility efficiency, performance estimate, CFD, Simulation
Abstract: The 3D physical model of the electrical water heater was built.
The water-heater performance was resolved by computer fluid dynamics simulation (CFD).
The objective of this investigation is to develop a new performance estimate method of domestic EWHs design by CFD simulation.
When the user outlet temperature was lower 43℃ at 5L/min, the simulation was finished.
The mathematical model of hot flow was resolved by computer fluid dynamics simulation (CFD).
The water-heater performance was resolved by computer fluid dynamics simulation (CFD).
The objective of this investigation is to develop a new performance estimate method of domestic EWHs design by CFD simulation.
When the user outlet temperature was lower 43℃ at 5L/min, the simulation was finished.
The mathematical model of hot flow was resolved by computer fluid dynamics simulation (CFD).