scholarly journals Effect of Side Blowing on Fluid Flow and Mixing Phenomenon in Gas-Stirred Ladle

Metals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 369
Author(s):  
Rong Cheng ◽  
Liangjin Zhang ◽  
Yanbin Yin ◽  
Jiongming Zhang
Keyword(s):  
Fluid Flow ◽  
Velocity Distribution ◽  
Flow Rate ◽  
Average Velocity ◽  
Mixing Time ◽  
Water Velocity ◽  
Horizontal Flow ◽  
Scale Model ◽  
Stagnant Region ◽  
Bottom Blowing

To investigate the gas agitation characteristics of side blowing, the fluid flow and mixing phenomenon in a 1:3 scale model ladle of a 150 t industrial gas-stirred ladle with bottom and side plugs were studied by using physical and numerical modelings together. Side blowing enhanced the horizontal flow of water in the model ladle. Compared with bottom blowing, side blowing that is close to the ladle bottom with more than two plugs increases the average velocity of water, which represents the agitation power, improves the uniformity of water velocity distribution, reduces the stagnant region rate, and shortens the mixing time. The mixing time of dual bottom plugs is almost 1.5 times of that of four side plugs at 116 mm under the same flow rate. The mixing time is not only influenced by the agitation power but also by the uniformity of water velocity distribution. Although the agitation power of four side plugs at 450 mm under the flow rate of 1.8 m3/h is about 1.5 times of that at 116 mm with 0.6 m3/h. The mixing time of the 1.8 m3/h flow rate is about 1.2 times of that of the 0.6 m3/h because of the different water velocity distributions.

Mixing of Fluids in Tanks by Gas Bubble Plumes

1987 ◽  
Vol 109 (2) ◽  
pp. 186-193 ◽  
Author(s):  
A. M. Godon ◽  
J. H. Milgram
Keyword(s):  
Flow Rate ◽  
Gas Flow ◽  
Mixing Time ◽  
Empirical Relationship ◽  
Scale Model ◽  
Gas Bubble ◽  
Gas Flow Rate ◽  
Dimensionless Variable ◽  
Bubble Plumes ◽  
The Relationship

The need to rapidly mix treating agent into the oil of a ruptured ship tank motivated scale model experiments of mixing in square-bottomed tanks by gas bubble plumes, The mixing time is primarily governed by the gas flow rate, the plume length and the tank base dimensions; and is quite insensitive to tank height. An empirical relationship between the degree of mixing and a single dimensionless variable is developed and an explanation of the relationship in terms of the fundamentals of the flow is provided.

scholarly journals Steady flow of high-paraffin bituminous binder in cylindrical tube in terms of Herschel – Bulkley fluid

2021 ◽  
Vol 23 (4) ◽  
pp. 79-99
Author(s):  
Oleg V. Matvienko ◽  
Alyona E. Litvinova
Keyword(s):  
Fluid Flow ◽  
Pressure Drop ◽  
Velocity Distribution ◽  
Radial Velocity ◽  
Steady Flow ◽  
Hydraulic Resistance ◽  
Flow Rate ◽  
Effective Viscosity ◽  
Cylindrical Tube ◽  
Fluid Flow Rate

This paper deals with the flow of bitumen binder in a cylindrical tube described by the Hershel-Bulkley fluid. The dependence is suggested for the fluid flow rate and the pressure drop. Dependences are also determined for the radial velocity distribution and effective viscosity. It is found that at a low pressure drop, the non-Newtonian properties of the medium lead to a significant hydraulic resistance due to the internal structure. With an increase in the pressure drop, the hydraulic resistance of the flow decreases.

Study on Mixing Time in Bottom-Blowing Ladle with Immersed Tube

2013 ◽  
Vol 750-752 ◽  
pp. 400-403
Author(s):  
Qing Hua Qi ◽  
Ming Gang Shen ◽  
De Hui Zhang ◽  
Tao Wu
Keyword(s):  
Flow Rate ◽  
Molten Steel ◽  
Steel Surface ◽  
Mixing Time ◽  
Water Model ◽  
Refractory Materials ◽  
Steel Making ◽  
Large Flow Rate ◽  
Bottom Blowing ◽  
Large Flow

As large flow rate of argon blowing in the process of bottom argon blowing ladle will cause severe fluctuations and sprays of molten steel, making the slags surface boiled and steel secondly oxidized, melting the refractory materials in the ladle, the flow rate of bottom argon blowing is limited, which will affect the efficiency of stirring. A 1:7 ratio ladle water model is established in the lab, and we will discuss how the diameter (d) of immersed tube, inserting depth (h) and the rate of bottom argon blowing affect the mixing time. The results show that the fluctuations on the steel surface can be diminished by the variations of diameters of immersed tube and inserting depth, the mixing time can be shorted by the increased flow rate of bottom argon blowing.

Time-dependent drainage of an Eyring film of variable thickness adhering to a vertical plate

2014 ◽  
Vol 92 (11) ◽  
pp. 1441-1445 ◽  
Author(s):  
A.M. Siddiqui ◽  
A. Walait ◽  
T. Haroon ◽  
A.R. Ansari
Keyword(s):  
Thin Film ◽  
Velocity Profile ◽  
Velocity Distribution ◽  
Flow Rate ◽  
Variable Thickness ◽  
Average Velocity ◽  
Vertical Plate ◽  
Time Dependent ◽  
Vorticity Vector ◽  
Flow Variables

In this paper, we investigate the time-dependent drainage of a thin film of Eyring fluid of variable thickness, flowing down a vertical plate. The exact solutions for the velocity distribution, flow rate, mean thickness, average velocity, vorticity vector, and stress are obtained. Graphical results are presented and discussed for various flow variables like the velocity profile and the variable thickness.

STUDY OF WATER FLOW RATE IN THE GATES OF HYDROPOWER AND IRRIGATION FACILITIES

2016 ◽  
Vol 6 (2) ◽  
pp. 135-139
Author(s):  
Muradulla M. MUKHAMMADIEV ◽  
Shavkat I. KLYCHEV ◽  
Kurbon S. DZURAEV ◽  
Farkhodzhon E. MADALIEV ◽  
Sulton BEKMURODOV ◽  
...  
Keyword(s):  
Water Flow ◽  
Flow Rate ◽  
Average Velocity ◽  
Vertical Section ◽  
Water Flow Rate ◽  
Experimental Studies ◽  
Water Velocity ◽  
Vertical Speed ◽  
Average Water ◽  
Water Rate

The results of the calculated and experimental studies of water velocity distribution in the central vertical crosssection of flow in the plane of the shutter are introduced. Shutter model allowing to investigate the water rate for conventional planar gate and the gate to the guide flap is presented. It is shown that the relative coordinate section characterizing the average water flow rate is not independent on the height of the water level and the shutter opens, but only on their ratio. Experimental graphical dependence of the average velocity of the water in the central vertical section shutter and coordinates of its position are introduced. Experiments showed that the water flow in the gates has a vertical speed component.. The obtained results enable us to develop methods for measuring the water flow in the gate.

scholarly journals Fluid Flow Characteristic of EAF Molten Steel with Different Bottom-Blowing Gas Flow Rate Distributions

2020 ◽  
Vol 60 (9) ◽  
pp. 1957-1967
Author(s):  
Zeshi Yang ◽  
Lingzhi Yang ◽  
Ting Cheng ◽  
Feng Chen ◽  
Fuqiang Zheng ◽  
...  
Keyword(s):  
Fluid Flow ◽  
Flow Rate ◽  
Molten Steel ◽  
Gas Flow ◽  
Flow Characteristic ◽  
Gas Flow Rate ◽  
Bottom Blowing

Application of Cross-correlation Analysis Method for Measurement of the Fluid Flow Rate Based on X-ray Radiation

2019 ◽  
Vol 11 (1) ◽  
pp. 01025-1-01025-5 ◽  
Author(s):  
N. A. Borodulya ◽  
◽  
R. O. Rezaev ◽  
S. G. Chistyakov ◽  
E. I. Smirnova ◽  
...  
Keyword(s):  
Fluid Flow ◽  
Correlation Analysis ◽  
Flow Rate ◽  
Cross Correlation ◽  
Fluid Flow Rate ◽  
Analysis Method ◽  
X Ray ◽  
Cross Correlation Analysis ◽  
Correlation Analysis Method

Study of fluid flow through a channel deformed by piezoelement

2018 ◽  
Vol 13 (3) ◽  
pp. 1-10 ◽  
Author(s):  
I.Sh. Nasibullayev ◽  
E.Sh Nasibullaeva ◽  
O.V. Darintsev
Keyword(s):  
Fluid Flow ◽  
Pressure Drop ◽  
Boundary Conditions ◽  
Flow Rate ◽  
Contact Surface ◽  
Piezoelectric Element ◽  
Neumann Boundary ◽  
Differential Pressure ◽  
Physical Parameters ◽  
Flow Through

The flow of a liquid through a tube deformed by a piezoelectric cell under a harmonic law is studied in this paper. Linear deformations are compared for the Dirichlet and Neumann boundary conditions on the contact surface of the tube and piezoelectric element. The flow of fluid through a deformed channel for two flow regimes is investigated: in a tube with one closed end due to deformation of the tube; for a tube with two open ends due to deformation of the tube and the differential pressure applied to the channel. The flow rate of the liquid is calculated as a function of the frequency of the deformations, the pressure drop and the physical parameters of the liquid.

Flow Features Analysis of Throttle Notches of Proportional Direct Valve

2011 ◽  
Vol 189-193 ◽  
pp. 2285-2288
Author(s):  
Wen Hua Jia ◽  
Chen Bo Yin ◽  
Guo Jin Jiang
Keyword(s):  
Fluid Flow ◽  
Dynamic Behavior ◽  
Flow Rate ◽  
Discharge Coefficient ◽  
3D Models ◽  
Operating Conditions ◽  
Flow Models ◽  
Flow Features ◽  
Rate Discharge ◽  
Spool Valve

Flow features, specially, flow rate, discharge coefficient and efflux angle under different operating conditions are numerically simulated, and the effects of shapes and the number of notches on them are analyzed. To simulate flow features, 3D models are developed as commercially available fluid flow models. Most construction machineries in different conditions require different actions. Thus, in order to be capable of different actions and exhibit good dynamic behavior, flow features should be achieved in designing an optimized proportional directional spool valve.

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