Study of fluid flow and residence-time distribution in a continuous slab casting mould

1991 ◽  
Vol 62 (11) ◽  
pp. 496-500 ◽  
Author(s):  
Dharmendra Gupta ◽  
S. Subramaniam ◽  
A. K. Lahiri
Keyword(s):  
Fluid Flow ◽  
Residence Time ◽  
Time Distribution ◽  
Residence Time Distribution ◽  
Continuous Slab ◽  
Slab Casting

Analysis Of Residence Time Distribution Of Fluid Flow By Axial Dispersion Model

2010 ◽  
Author(s):  
Sugiharto ◽  
Zaki Su’ud ◽  
Rizal Kurniadi ◽  
Abdul Waris ◽  
Zainal Abidin ◽  
...  
Keyword(s):  
Fluid Flow ◽  
Residence Time ◽  
Time Distribution ◽  
Residence Time Distribution ◽  
Dispersion Model ◽  
Axial Dispersion ◽  
Axial Dispersion Model

scholarly journals Effect of Thermal Buoyancy on Fluid Flow and Residence-Time Distribution in a Single-Strand Tundish

Materials ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 1906
Author(s):  
Dong-Yuan Sheng ◽  
Pär G. Jönsson
Keyword(s):  
Fluid Flow ◽  
Residence Time ◽  
Molten Steel ◽  
Time Distribution ◽  
Residence Time Distribution ◽  
Volume Fraction ◽  
Heat Losses ◽  
Single Strand ◽  
Cfd Model ◽  
Thermal Buoyancy

Natural convection of molten steel flow in a tundish occurs due to the temperature variation of the inlet stream and heat losses through top surface and refractory walls. A computational fluid dynamics (CFD) model was applied to study the effect of thermal buoyancy on fluid flow and residence-time distribution in a single-strand tundish. The CFD model was first validated with the experimental data from a non-isothermal water model and then applied to both scale-down model and prototype. The effects of flow control devices, including weir, dam and turbulence inhibitor, were compared and analyzed. Parameter studies of different heat losses through the top surface were performed. The results show that thermal buoyancy has a significant impact on the flow pattern and temperature distributions of molten steel in the tundish. The increase of heat loss through the top surface shortens the mean residence time of molten steel in the tundish, leading to an increase in dead volume fraction and a decrease in plug flow volume fraction.

scholarly journals A novel technique for residence time distribution (RTD) measurements in solids unit operations

2021 ◽  
Vol 32 (2) ◽  
pp. 611-618
Author(s):  
Atena Dehghani Kiadehi ◽  
Mikel Leturia ◽  
Franco Otaola ◽  
Aissa Ould-Dris ◽  
Khashayar Saleh
Keyword(s):  
Residence Time ◽  
Time Distribution ◽  
Residence Time Distribution ◽  
Novel Technique ◽  
Unit Operations
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