The Numerical Simulation Research on Garbage Particles in Airflow Field of Horizontal Air-Separator under Different Conditions

2012 ◽  
Vol 518-523 ◽  
pp. 2263-2266
Author(s):  
Xin Le Yang ◽  
Shuo Yang
Keyword(s):  
Numerical Simulation ◽  
Velocity Field ◽  
Flow Field ◽  
Pressure Field ◽  
Internal Flow ◽  
Simulation Method ◽  
Separation Principle ◽  
Simulation Research ◽  
Airflow Field ◽  
Back Mixing

In air-separator’s operating condition, separation trajectory of air-separator’s internal garbage particles was obtained through comparison of ordinary and improved air-separator’s internal flow field in the numerical was simulated by FLUENT soft software and garbage particles’ flow rules and separation principle was revealed. The results show that velocity field and pressure field of improved horizontal air-separator’s changes smoothly and phenomenon of chaos and back-mixing can be avoided, furthermore, it realizes effective sorting for three different quality garbage particles. The numerical simulation method in this paper provides theoretical and technical way for optimizing the air-separator’s internal structure and improving air-separator’s performance.

Flow Field Analysis of Conducting Trunk of Comb-Type Cotton Picker

2012 ◽  
Vol 468-471 ◽  
pp. 1749-1752
Author(s):  
Chun Yao Wang ◽  
Xue Nong Wang ◽  
Fa Chen ◽  
Yue Liu ◽  
Jiu Peng Chi ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Velocity Field ◽  
Flow Field ◽  
Field Analysis ◽  
Distribution Characteristics ◽  
Pneumatic Conveying ◽  
Simulation Research ◽  
Cotton Picker ◽  
Different Types ◽  
Flow Field Analysis

This article uses the flow field numerical simulation technology, it does simulation research for the flow field of the whole pneumatic conveying cotton trunk, through studying different types of jet orifice of the conveying trunk of comb—type cotton picker, finding out the influence of jet orifice width on pressure and velocity field, further understanding flow field distribution characteristics of the internal pneumatic cotton conveyance system, and providing necessary basis for the machine.

Numerical Simulation of Interior Flow Field of Reactor Coolant Pump under Station Blackout Accident

2012 ◽  
Vol 455-456 ◽  
pp. 1002-1008 ◽  
Author(s):  
Yi Ming Xu ◽  
Shi Ming Xu
Keyword(s):  
Numerical Simulation ◽  
Flow Field ◽  
Internal Flow ◽  
Simulation Method ◽  
Governing Equations ◽  
Coolant Pump ◽  
Reactor Coolant ◽  
Internal Characteristic ◽  
Station Blackout ◽  
Interior Flow

Numerical simulation is used for researching the transient characteristic and internal characteristic of the reactor coolant pump under station blackout accident. The simulation method has been presented by analyzing difference scheme for governing equations. The analytical model of reactor coolant pump flow field has been established by analyzing adequately the influence of varying rotation speed to the pump external characteristic. Finally, the pump internal flow characteristic is exposed.

Numerical Simulation of Internal Flow Field in Blast Furnace Slag Dry Granulating Device

2019 ◽  
Vol 944 ◽  
pp. 1199-1207
Author(s):  
Rui Yun Wang ◽  
Jin Yu Yin ◽  
Su Ping Cui
Keyword(s):  
Numerical Simulation ◽  
Blast Furnace ◽  
Flow Field ◽  
Blast Furnace Slag ◽  
Internal Flow ◽  
Simulation Method ◽  
Cooling Effectiveness ◽  
Field Uniformity ◽  
The Impact ◽  
Furnace Slag

In this paper, CFD numerical simulation method was adopted to study the internal flow field of experimental dry granulating device of blast furnace slag and to research the impact of equipment structure and wind speed on cooling effectiveness. Main content included the internal flow field uniformity under different blade type and number of inlets. The results showed that the internal flow field in strip-blades device was more uniform than fan-shaped blades device. With the increase of air inlets quantity, the internal flow field in device became more uniform and stable, especially when there were 8 air inlets in the equipment.

Numerical Simulation and Experiment Research of the Whole Flow Field inside a Multi-Blade Centrifugal Fan

2012 ◽  
Vol 468-471 ◽  
pp. 2255-2258
Author(s):  
Feng Gao ◽  
Wei Yan Zhong
Keyword(s):  
Numerical Simulation ◽  
Flow Field ◽  
Field Model ◽  
Pressure Field ◽  
Internal Flow ◽  
Centrifugal Fan ◽  
Simulation And Experiment ◽  
Overall Performance ◽  
Unsteady Numerical Simulation ◽  
Cfd Method

The full flow field model of a widely used multi-blade centrifugal was built, using the CFD method, the steady and unsteady numerical simulation of the inner flow in the fan at different working conditions are presented. The numerical simulation results were validated by contrasting to the experiment results. The results displayed the characteristics of the velocity field, pressure field and pressure fluctuate in the centrifugal fan. The results can provide basis for optimizing the fan design and the internal flow, and have important value of engineering applications in the increase of the overall performance in operation.

3-D Numerical Simulation of the Flow Field of Cutthroat Flume

2014 ◽  
Vol 488-489 ◽  
pp. 1227-1230
Author(s):  
Qing Lan Qi ◽  
Qian Huo ◽  
Qing Qing Ye ◽  
Jun Zhang
Keyword(s):  
Numerical Simulation ◽  
Velocity Field ◽  
Flow Field ◽  
Theoretical Basis ◽  
Flow Measurement ◽  
Optimization Design ◽  
Simple Structure ◽  
Pressure Field ◽  
Irrigation District ◽  
Irrigation Districts

For cooperating with automation of flow measurement in irrigation districts, the method of flow measurement needs to be improved. Considering that sedimentation may appear at most channels and comparing with common water measure equipment, cutthroat flume measuring flume become the most suitable flow measurement structure adopted in irrigation districts with the advantages of the simple structure, the lower upstream backwater, not easy to silt the flume and so on. In the background of the cutthroat flume of one channel in the Ye River irrigation district of Shijiazhuang and on the basis of RNG k-εturbulence model, the 3-D numerical simulation of the flow field of cutthroat flume is carried out to obtain the distribution of velocity field and pressure field. By comparing the calculation value of nodal velocity with the measured value of nodal velocity, the reliability of the result of numerical simulation is proved. The above conclusions provide theoretical basis for further optimization design of cutthroat flume.

Numerical Simulation and Comparison on the Inner-Flow Field in Hydraulic Feedback Pump

2013 ◽  
Vol 483 ◽  
pp. 219-222
Author(s):  
Shu Qin Xiao ◽  
Duan Yin Zhu ◽  
Shuang Quan Liu
Keyword(s):  
Numerical Simulation ◽  
Velocity Field ◽  
Flow Field ◽  
Pressure Field ◽  
Oil Production ◽  
Structure Type ◽  
Sucker Rod ◽  
Import And Export

Existing hydraulic feedback pump from the structure type can be divided into three kinds, big on the small,small on the big,big up and down. This paper focuses on the inner-flow field of three structural pumps about oil import and export of analyzing and comparing the velocity field and pressure field, chooses more suitable for hollow sucker rod oil production of hydraulic feedback pump.

Research on CFD Simulation of the Cement Slurry Mixer

2012 ◽  
Vol 621 ◽  
pp. 196-199
Author(s):  
Shui Ping LI ◽  
Ya Li Yuan ◽  
Lu Gang Shi
Keyword(s):  
Flow Field ◽  
High Performance ◽  
Cfd Simulation ◽  
Structural Parameters ◽  
Internal Flow ◽  
Simulation Method ◽  
Cement Slurry ◽  
Fluid Machinery ◽  
Computational Fluid Dynamics Cfd ◽  
Machinery Design

Numerical simulation method of the internal flow field of fluid machinery has become an important technology in the study of fluid machinery design. In order to obtain a high-performance cement slurry mixer, computational fluid dynamics (CFD) techniques are used to simulate the flow field in the mixer, and the simulation results are studied. According to the analysis results, the structural parameters of the mixer are modified. The results show the mixer under the revised parameters meet the design requirements well. So CFD analysis method can shorten design period and provide valuable theoretical guidance for the design of fluid machinery.

Sign in / Sign up

Export Citation Format

Share Document