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Online since: October 2011
Authors: Hong Yan Zhang, Hai Hong Dong
Numerical simulation of two-phase liquid–liquid flow in a new static mixer structure
Hongyan Zhang 1,a, Haihong Dong2, b
1Xi′an University of Architecture and Technology, China
2 Xi′an University of Architecture and Technology, China
azhanghongyan@xauat.edu.cn, bdonghaihonga@163.com
Keywords: spiral belt with changing diameter,static mixer,mixing effect,numerical simulation
Abstract.
The numerical simulation method was used to investigate the mixing process of two-phase liquid–liquid flow in water treatment by a commercial CFD code,namely Fluent.The k-ε model and species transport model were established to research this project.
Fig.4 Comparison between CFD and EXPERIMENT The experimental data and CFD results are consistent.
Conclusion In the present study, advanced CFD techniques have been used as a tool for the research of a new mixer.
Three conclusions can be obtained through the research: (1) The results obtained from numerical simulations for two-phase liquid–liquid flow in HEV static mixer with Re=20000 have been compared with experiment data.Both are in good agreement,which prove that the method of numerical simulation is feasible
The numerical simulation method was used to investigate the mixing process of two-phase liquid–liquid flow in water treatment by a commercial CFD code,namely Fluent.The k-ε model and species transport model were established to research this project.
Fig.4 Comparison between CFD and EXPERIMENT The experimental data and CFD results are consistent.
Conclusion In the present study, advanced CFD techniques have been used as a tool for the research of a new mixer.
Three conclusions can be obtained through the research: (1) The results obtained from numerical simulations for two-phase liquid–liquid flow in HEV static mixer with Re=20000 have been compared with experiment data.Both are in good agreement,which prove that the method of numerical simulation is feasible
Online since: May 2013
Authors: Han Xiao, Jian Gang Jin, Jia Shi Tang
In this article, a certain bridge space was studied, time history curve for the room temperature was obtained by CFD simulation according to the hydrodynamic theory, and the data turned out to be reliable by being compared to the experimental outcomes.
In recent years, however, computational fluid dynamics (CFD) has shown great value as a tool to study smoke and fire movement.
Fig. 1 Geometric model for under-bridge fire simulation Parameters of the Fire Size.
Results and Validation Simulation Result.
However, at the early stage of fire, since the air ventilation and the ignition and growth of fire were considered in CFD simulation, while the experimental furnace can be rapidly heated to a predetermined rate of heat release state, hence, the numerical temperature was a little bit lower than the experimental one.
In recent years, however, computational fluid dynamics (CFD) has shown great value as a tool to study smoke and fire movement.
Fig. 1 Geometric model for under-bridge fire simulation Parameters of the Fire Size.
Results and Validation Simulation Result.
However, at the early stage of fire, since the air ventilation and the ignition and growth of fire were considered in CFD simulation, while the experimental furnace can be rapidly heated to a predetermined rate of heat release state, hence, the numerical temperature was a little bit lower than the experimental one.
Online since: February 2012
Authors: Da Ying Li
In recent years, with the extensive use of the fluid mechanical analysis software CFD, some researchers applied the CFD to solve the oil film performances for sliding bearing [5-8].
Static performances solution for hybrid oil film bearing by using CFD method CFD introduction CFD denotes computational fluid dynamics based on classic fluid dynamics and numerical discretization method and is utilized to calculate and describe the fundamental equations of fluid motion.
The results are close to that of CFD.
Simulation of pressure field in hydrostatic bearing with finite element method [J].
Numerical simulation of flow in convergent wedge gap[J].
Static performances solution for hybrid oil film bearing by using CFD method CFD introduction CFD denotes computational fluid dynamics based on classic fluid dynamics and numerical discretization method and is utilized to calculate and describe the fundamental equations of fluid motion.
The results are close to that of CFD.
Simulation of pressure field in hydrostatic bearing with finite element method [J].
Numerical simulation of flow in convergent wedge gap[J].
Online since: May 2011
Authors: Can Li, Tian Fu Deng
Numerical Simulated Method on Wind Environmental of outdoor
Can Li1, a, Tianfu Deng2,b
1 College of Civil Engineering,Hunan University of technology,Zhuzhou 412008,china
2 Shanghai Research Institute of Building Sciences, Shanghai, 201108, China
alc19992@126.com, bdengtianfu@126.com
Keywords: wind environment; numerical simulation; CFD; district planning
Abstract.
The steady-state three-dimensional turbulent airflow fields were analyzed by computational fluid dynamic (CFD) method for the two cases.
Compared with the model experiment, the CFD has advantages as lower cost, shorter time, and easily obtained information about the flow field, and the sensitivity analysis of the parameter change is easily, so simulation of more complicated real flow is also easily realized.
The simulation results showed good agreement with the test data[12].
Application of CFD tools for indoor and outdoor environment design.
The steady-state three-dimensional turbulent airflow fields were analyzed by computational fluid dynamic (CFD) method for the two cases.
Compared with the model experiment, the CFD has advantages as lower cost, shorter time, and easily obtained information about the flow field, and the sensitivity analysis of the parameter change is easily, so simulation of more complicated real flow is also easily realized.
The simulation results showed good agreement with the test data[12].
Application of CFD tools for indoor and outdoor environment design.
Online since: October 2014
Authors: Wirachman Wisnoe, Azman Bakri, Mohd Amal Asrol Omar
This is found from the computational fluid dynamics (CFD) simulation of SERVCO fume cupboard using κ-ω turbulence model.
Introduction The computational fluid dynamics (CFD) simulation of SERVCO fume cupboard using κ-ω turbulence model suggested that recirculation region behind the sash is the potential contributor to the leakage of the contaminants due to its large size and its location near to outside air [1, 2].
In this paper, the effect of shape of baffle openings on flow distributions of a SERVCO fume cupboard will be presented as a result of computational fluid dynamics (CFD) simulation using κ-ω turbulence model.
CFD Set-up.
Fouad, CFD simulation of fractal-shaped orifices for flow measurementimprovement, Flow Measurement and Instrumentation, Vol. 36 (2014) 14-23
Introduction The computational fluid dynamics (CFD) simulation of SERVCO fume cupboard using κ-ω turbulence model suggested that recirculation region behind the sash is the potential contributor to the leakage of the contaminants due to its large size and its location near to outside air [1, 2].
In this paper, the effect of shape of baffle openings on flow distributions of a SERVCO fume cupboard will be presented as a result of computational fluid dynamics (CFD) simulation using κ-ω turbulence model.
CFD Set-up.
Fouad, CFD simulation of fractal-shaped orifices for flow measurementimprovement, Flow Measurement and Instrumentation, Vol. 36 (2014) 14-23
Online since: June 2012
Authors: Ying Chao Zhang, Fang Zhao, Shu Xin Shao, Guang Yin Jin
Aerodynamic Drag Reduction Design of Concept Sports Car
Ying-chao Zhang1, a, Fang Zhao1, b, Shu-xin Shao1, c
and Guang-yin Jin2, d
1State Key Laboratory of Automotive Simulation and Control, Jilin University, China
2China FAW Company Limited R&D Center, Jilin, China
ayingchao@jlu.edu.cn, bzfzhaofang@gmail.com, cshaoshuxinjlu@163.com,
dgabrielking@126.com
Keywords: Sports car, shape optimization, CFD, Aerodynamics, drag reduction.
Simulations analysis of the aerodynamic for a sports car modeling before and after optimization was introduced in the paper by using commercial CFD code--STAR-CCM+.
These results can provide the basis for the modeling design and further optimization. 1 Introduction In the past few decades, with the rapid development of computer technology, CFD technology is widely applied into automotive design.
(2) Using CFD technology can we get comparative analysis and forecast performance of different schemes in the early stages of the design.
Numerical simulation based on aerodynamics in car design is a rapid, simple and effective design method [5]. 5 References [1] Fu LM, in: Aerodynamics of Road Vehicles [M].
Simulations analysis of the aerodynamic for a sports car modeling before and after optimization was introduced in the paper by using commercial CFD code--STAR-CCM+.
These results can provide the basis for the modeling design and further optimization. 1 Introduction In the past few decades, with the rapid development of computer technology, CFD technology is widely applied into automotive design.
(2) Using CFD technology can we get comparative analysis and forecast performance of different schemes in the early stages of the design.
Numerical simulation based on aerodynamics in car design is a rapid, simple and effective design method [5]. 5 References [1] Fu LM, in: Aerodynamics of Road Vehicles [M].
Online since: September 2013
Authors: Mohd Mustafa Al Bakri Abdullah, Mohamed Mazlan, A. Rahim, W. Razak, M.R. Mohd Sukhairi, M.A. Iqbal
The simulation setup for 4 and 8 PLCC packages are shown in figure 1.
A combined model is combination between PLCC packages and motherboard that been used during the simulation.
It is tolerable as slight difference in shape may not affect the simulation result.
The simulation results are obtained first with 4 PLCC’s and then with 8 PLCC’s and presented accordingly.
In the simulation model, the arrangement of the packages begins with the PLCC 1 located in front of motherboard followed by 2, 3 and 4.
A combined model is combination between PLCC packages and motherboard that been used during the simulation.
It is tolerable as slight difference in shape may not affect the simulation result.
The simulation results are obtained first with 4 PLCC’s and then with 8 PLCC’s and presented accordingly.
In the simulation model, the arrangement of the packages begins with the PLCC 1 located in front of motherboard followed by 2, 3 and 4.
Online since: October 2013
Authors: Shen Gen Tan, Fu Cheng Zhang, Xun Hao Zheng, Jun Chen
The RANS equations for incompressible flow is solved with a Realizable k-ε turbulence model using the commercial CFD code STAR-CCM+.
CFD model Computation regions and boundary conditions.
Conclusions CFD analysis of the coolant mixing within the upper plenum of a PWR is conducted by solving the steady RANS equations for incompressible flow with Realizable k-ε turbulence model utilizing the commercial CFD code STAR-CCM+.
Part 1: Computational fluiddynamics(CFD) simulations.
Kang, CFD analysis for full vessel upper plenum in Maanshan Nuclear Power Plant, Nucl.
CFD model Computation regions and boundary conditions.
Conclusions CFD analysis of the coolant mixing within the upper plenum of a PWR is conducted by solving the steady RANS equations for incompressible flow with Realizable k-ε turbulence model utilizing the commercial CFD code STAR-CCM+.
Part 1: Computational fluiddynamics(CFD) simulations.
Kang, CFD analysis for full vessel upper plenum in Maanshan Nuclear Power Plant, Nucl.
Online since: September 2014
Authors: Przemyslaw Szulc
The Main Assumptions of the Numerical Model
CFD simulations are widely used to confirm engineer calculation and reduce the costs of the whole process of the design.
For numerical investigation of the analysed structures commercial CFD software ANSYS FLUENT was used, and for a mesh generator - ANSYS ICEM CFD.
The simulations were made by means of MRF model.
The simulations were made mainly as unsteady.
The results of CFD simulations show that the active discs have impact on fluid like in a classical centrifugal pump - increases the moment of momentum.
For numerical investigation of the analysed structures commercial CFD software ANSYS FLUENT was used, and for a mesh generator - ANSYS ICEM CFD.
The simulations were made by means of MRF model.
The simulations were made mainly as unsteady.
The results of CFD simulations show that the active discs have impact on fluid like in a classical centrifugal pump - increases the moment of momentum.
Online since: February 2019
Authors: R.S. Santos, Morgana Vasconcellos Araújo, A.G. Barbosa de Lima, W.R. Gomes dos Santos, R. Moura da Silva, J.B. Silva do Nascimento
Drying of Industrial Hollow Ceramic Brick: A Numerical Analysis
Using CFD
M.
Then, aim of this work is to predict the drying of an industrial hollow ceramic brick in an oven by CFD.
The geometry and mesh were constructed using ICEM CFD 15.0 software.
Simulation and Experimentation of Drying Ceramic Bricks (In portuguese).
Simulation and Experimentation of Red Ceramic Drying in Industrial Thermal Systems.
Then, aim of this work is to predict the drying of an industrial hollow ceramic brick in an oven by CFD.
The geometry and mesh were constructed using ICEM CFD 15.0 software.
Simulation and Experimentation of Drying Ceramic Bricks (In portuguese).
Simulation and Experimentation of Red Ceramic Drying in Industrial Thermal Systems.