TY - JOUR
T1 - Visualization and measurement of turbulent flow inside a Submerged Entry Nozzle and off the ports
AU - Real-Ramirez, C. A.
AU - Carvajal-Mariscal, I.
AU - Miranda-Tello, J. R.
AU - Gonzalez-Trejo, J.
AU - Gabbasov, R.
AU - Sanchez-Silva, F.
AU - Cervantes-de-la-Torre, F.
N1 - Publisher Copyright:
© 2021
PY - 2021/7
Y1 - 2021/7
N2 - This work presents the results of the analysis of the turbulent flow inside a Submerged Entry Nozzle and outside the ports of a model using visualization and PIV techniques. The Submerged Entry Nozzle model consists of a vertical, constant diameter tube with two rounded exit ports found at the bottom with a downward angle of 15◦ each. The visualization method is the first step in analyzing the characteristics of the port’s internal and external flow. To enhance the visualizations, a LED light source is employed to illuminate the Submerged Entry Nozzle, which reduces the reflections in the images. Also, a transparent cell consisting of a cubic volume with reduced dimensions was used to capture images from the high-speed camera and to record the flow pattern. To calculate the fluid velocity within the Submerged Entry Nozzle and close to the exit ports, laser-illuminated Particle Imaging Velocimetry was used. We confirm the previously reported formation of vortical structures closed to the exit ports that interact with each other altering the swirl motion of the exit flow, previously reported. Visualization and Particle Imaging Velocimetry results were compared with the numerical simulations results. Experimental scaled model and Computational Fluid Dynamics results were used to enhance the findings of the Submerged Entry Nozzle internal flow. On the other hand, physical model and Smoothed-Particle Hydrodynamics results were used to expand the information of the jet flow outside the exit ports. Both physical and numerical results display a high turbulent flow behavior close to and off the exit ports of the Submerged Entry Nozzle. Experimental and numerical methods may be used together to develop a method to design a better Submerged Entry Nozzle and increase the quality of the steel slab.
AB - This work presents the results of the analysis of the turbulent flow inside a Submerged Entry Nozzle and outside the ports of a model using visualization and PIV techniques. The Submerged Entry Nozzle model consists of a vertical, constant diameter tube with two rounded exit ports found at the bottom with a downward angle of 15◦ each. The visualization method is the first step in analyzing the characteristics of the port’s internal and external flow. To enhance the visualizations, a LED light source is employed to illuminate the Submerged Entry Nozzle, which reduces the reflections in the images. Also, a transparent cell consisting of a cubic volume with reduced dimensions was used to capture images from the high-speed camera and to record the flow pattern. To calculate the fluid velocity within the Submerged Entry Nozzle and close to the exit ports, laser-illuminated Particle Imaging Velocimetry was used. We confirm the previously reported formation of vortical structures closed to the exit ports that interact with each other altering the swirl motion of the exit flow, previously reported. Visualization and Particle Imaging Velocimetry results were compared with the numerical simulations results. Experimental scaled model and Computational Fluid Dynamics results were used to enhance the findings of the Submerged Entry Nozzle internal flow. On the other hand, physical model and Smoothed-Particle Hydrodynamics results were used to expand the information of the jet flow outside the exit ports. Both physical and numerical results display a high turbulent flow behavior close to and off the exit ports of the Submerged Entry Nozzle. Experimental and numerical methods may be used together to develop a method to design a better Submerged Entry Nozzle and increase the quality of the steel slab.
KW - Visualization technique
KW - computational fluid dynamics
KW - particle Imaging velocimetry
KW - smoothed-particle hydrodynamics
KW - turbulent flow
UR - http://www.scopus.com/inward/record.url?scp=85114687568&partnerID=8YFLogxK
U2 - 10.31349/REVMEXFIS.67.040601
DO - 10.31349/REVMEXFIS.67.040601
M3 - Artículo
AN - SCOPUS:85114687568
SN - 0035-001X
VL - 67
JO - Revista Mexicana de Fisica
JF - Revista Mexicana de Fisica
IS - 4
M1 - 040601
ER -