scholarly journals The Influence of Side Friction on Speed-Mixed Flow Behavior on Arterial Roads in Tourism Area in Bali

2022 ◽  
Vol 10 (1) ◽  
pp. 27-44
Author(s):  
D. M Priyantha Wedagama ◽  
I Wayan Suweda ◽  
N. L. G Astariyani
Keyword(s):  
Flow Behavior ◽  
Mixed Flow ◽  
Side Friction

scholarly journals Investigation Concerning the Fluid Flow in the Mixed-Flow Diffuser

1971 ◽  
Author(s):  
Shinji Honami ◽  
Keizo Tsukagoshi ◽  
Toshimichi Sakai ◽  
Ichiro Watanabe
Keyword(s):  
Boundary Layer ◽  
Fluid Flow ◽  
Velocity Profile ◽  
Flow Behavior ◽  
Three Dimensional ◽  
Pressure Gradients ◽  
Flow Mechanism ◽  
Mixed Flow ◽  
Three Dimensional Flow ◽  
Layer Flow

Velocity profile measurements were performed on the flow in a mixed-flow diffuser with walls having equal cone angles. The aim of the present study is to understand the flow behavior and the relation between the flow patterns and the diffuser losses. The boundary layer flow accompanied by separation on the inner wall and the velocity normal to the diffuser walls were measured in detail to examine the three-dimensional flow behavior in the mixed-flow diffuser. Comparing with the radial diffuser, the mixed-flow diffuser had a more complicated flow mechanism as it had the pressure gradients of transverse and normal directions.

scholarly journals Numerical Investigation of Flow Characteristics of Molten Steel in the Tundish with Channel Induction Heating

Metals ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1937
Author(s):  
Bin Yang ◽  
Hong Lei ◽  
Yingshi Xu ◽  
Kun Liu ◽  
Peng Han
Keyword(s):  
Fluid Flow ◽  
Flow Pattern ◽  
Numerical Investigation ◽  
Induction Heating ◽  
Molten Steel ◽  
Flow Behavior ◽  
Plug Flow ◽  
Flow Characteristics ◽  
Main Flow ◽  
Mixed Flow

In the continuous process, fluid flow is an important physical phenomena in the tundish, as it affects the process of heat transfer, bubble motion and inclusion collision-coalescence and grow up. This paper undertakes a detailed numerical investigation of fluid flow characteristics in the tundish with and without induction heating. The individual unit method and the volume subtraction model are applied to analyze the flow characteristics. A quantitative evaluation method of flow characteristics is proposed to investigate the flow characteristics. In the tundish with and without induction heating, firstly, the main flow behavior of molten steel is mixed flow in the receiving chamber; secondly, the main flow behavior of molten steel is plug flow in the channel; lastly, the main flow pattern is mixed flow, and the minor flow pattern is plug flow in the discharging chamber. The method of the volume subtraction model is an effective way to analyze the flow characteristics in the tundish with channel induction heating.

A Study on the Flow Pattern Within the Centrifugal and Mixed-Flow Impellers

1971 ◽  
Author(s):  
Shinpei Mizuki ◽  
Toshimichi Sakai ◽  
Ichiro Watanabe
Keyword(s):  
Experimental Data ◽  
Flow Pattern ◽  
Surface Pressure ◽  
Flow Behavior ◽  
Inviscid Flow ◽  
Flow Patterns ◽  
Blade Surface ◽  
Mixed Flow ◽  
Analytical Results ◽  
Good Coincidence

An Investigation of the flow patterns within the centrifugal and mixed-flow impeller channel were performed. The velocity distributions within the impeller channel and blade surface pressure of the centrifugal and mixed-flow impellers were closely examined by experiment and the flow behavior within these impellers were clarified. The incompressible and inviscid flow within the impellers having straight radial blades were also derived analytically. The present authors assumed an outermost boundary of the relative eddy at the impeller exit periphery and corrected the analytical results. The corrected analytical results thus obtained showed good coincidence with the experimental data.

Predictive Erosion Model for Mixed Flow Centrifugal Pump

2019 ◽  
Vol 141 (9) ◽  
Author(s):  
Sahand Pirouzpanah ◽  
Abhay Patil ◽  
Yiming Chen ◽  
Gerald Morrison
Keyword(s):  
Solid Phase ◽  
Phase Particle ◽  
Flow Behavior ◽  
Mixed Flow ◽  
Ansys Fluent ◽  
Erosion Model ◽  
Electrical Submersible Pumps ◽  
Operating Lifetime ◽  
Design Type ◽  
Two Stages

Electrical submersible pumps (ESPs) are widely used in upstream oil production. The presence of a low concentration solid phase, particle-laden flow, in the production fluid may cause severe damage in the internal sections of the pump which reduces its operating lifetime. To better understand the ESP pump's endurance, two different designs of commonly used mixed flow ESPs were studied numerically to determine the pump's flow behavior at its best efficiency point. Computational fluid dynamics (CFD) analysis was conducted on two stages of one design type of pump's primary flow path employing Eulerian–Granular scheme in ANSYS FLUENT. The key parameters affecting the erosion phenomena within the pump such as turbulence kinetic energy, local sand concentration, and near wall relative sand velocity were identified. The predictive erosion model applicable to pumps was developed by correlating the erosion key parameters with available experimental results. It is concluded that the use of an erosion model on the second design of ESP proves the model's versatility to predict the erosion on different designs of ESPs.

Flow behavior of granular material during funnel and mixed flow discharges: A comparative analysis

2021 ◽  
Author(s):  
Dancheng Zhang ◽  
Shijie Dong ◽  
Hui Guo ◽  
Xiaodong Yang ◽  
Lijie Cui ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Granular Material ◽  
Flow Behavior ◽  
Mixed Flow

Investigation on the control of multiphase flow behavior in a continuous casting tundish during ladle change

2020 ◽  
Vol 117 (6) ◽  
pp. 619
Author(s):  
Rui Xu ◽  
Haitao Ling ◽  
Haijun Wang ◽  
Lizhong Chang ◽  
Shengtao Qiu
Keyword(s):  
Multiphase Flow ◽  
Flow Behavior ◽  
Rolled Strip ◽  
Impact Zone ◽  
Steel Cleanliness ◽  
Carry Over ◽  
Slag Carry Over ◽  
Hot Rolled ◽  
Turbulence Inhibitor ◽  
The Impact

The transient multiphase flow behavior in a single-strand tundish during ladle change was studied using physical modeling. The water and silicon oil were employed to simulate the liquid steel and slag. The effect of the turbulence inhibitor on the slag entrainment and the steel exposure during ladle change were evaluated and discussed. The effect of the slag carry-over on the water-oil-air flow was also analyzed. For the original tundish, the top oil phase in the impact zone was continuously dragged into the tundish bath and opened during ladle change, forming an emulsification phenomenon. By decreasing the liquid velocities in the upper part of the impact zone, the turbulence inhibitor decreased considerably the amount of entrained slag and the steel exposure during ladle change, thereby eliminating the emulsification phenomenon. Furthermore, the use of the TI-2 effectively lowered the effect of the slag carry-over on the steel cleanliness by controlling the movement of slag droplets. The results from industrial trials indicated that the application of the TI-2 reduced considerably the number of linear inclusions caused by ladle change in hot-rolled strip coils.

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