scholarly journals Particle resolved direct numerical simulation of a liquid–solid fluidized bed: Comparison with experimental data

2017 ◽  
Vol 89 ◽  
pp. 228-240 ◽  
Author(s):  
A. Ozel ◽  
J.C. Brändle de Motta ◽  
M. Abbas ◽  
P. Fede ◽  
O. Masbernat ◽  
...  
Keyword(s):  
Experimental Data ◽  
Numerical Simulation ◽  
Direct Numerical Simulation ◽  
Fluidized Bed ◽  
Comparison With Experimental Data

scholarly journals Numerical Simulation of the Full-Polarimetric Emissivity of Vines and Comparison with Experimental Data

2009 ◽  
Vol 1 (3) ◽  
pp. 300-317 ◽  
Author(s):  
Alberto Martinez-Vazquez ◽  
Adriano Camps ◽  
Juan Manuel Lopez-Sanchez ◽  
Mercedes Vall-llossera ◽  
Alessandra Monerris
Keyword(s):  
Experimental Data ◽  
Numerical Simulation ◽  
Comparison With Experimental Data

Direct Numerical Simulation of Particle Heat and Mass Transfer in a Fluidized Bed

2014 ◽  
Author(s):  
Zhi-Gang Feng ◽  
Adam Roig
Keyword(s):  
Heat Transfer ◽  
Numerical Simulation ◽  
Direct Numerical Simulation ◽  
Fluidized Bed ◽  
Immersed Boundary Method ◽  
Fluid Velocity ◽  
Temperature Fields ◽  
Immersed Boundary ◽  
Boundary Method ◽  
Study Heat Transfer

We have developed a Direct Numerical Simulation combined with the Immersed Boundary method (DNS-IB) to study heat transfer in particulate flows. In this method, fluid velocity and temperature fields are obtained by solving the modified momentum and heat transfer equations, which result from the presence of heated particles in the fluid; particles are tracked individually and their velocities and positions are solved based on the equations of linear and angular motions; particle temperature is assumed to be a constant. The momentum and heat exchanges between a particle and the surrounding fluid at its surface are resolved using the immersed boundary method with the direct forcing scheme. The DNS-IB method has been used to study heat transfer of 1024 of heated spheres in a fluidized bed. By exploring the rich data generated from the DNS-IB simulations, we are able to obtain statistically averaged fluid and particle velocity as well as overall heat transfer rate in a fluidized bed.

scholarly journals Direct Numerical Simulation of separated turbulent flow in axisymmetric diffuser

2021 ◽  
Vol 2103 (1) ◽  
pp. 012214
Author(s):  
A S Stabnikov ◽  
D K Kolmogorov ◽  
A V Garbaruk ◽  
F R Menter
Keyword(s):  
Experimental Data ◽  
Numerical Simulation ◽  
Direct Numerical Simulation ◽  
Turbulent Flow ◽  
Turbulence Model ◽  
Eddy Viscosity ◽  
Separated Flow ◽  
Model Improvement ◽  
Good Agreement

Abstract Direct numerical simulation (DNS) of the separated flow in axisymmetric CS0 diffuser is conducted. The obtained results are in a good agreement with experimental data of Driver and substantially supplement them. Along with other data, eddy viscosity extracted from performed DNS could be used for RANS turbulence model improvement.

Soft Tissue Strain and Facet Face Interaction in the Lumbar Intervertebral Joint—Part II: Calculated Results and Comparison With Experimental Data

1983 ◽  
Vol 105 (3) ◽  
pp. 210-215 ◽  
Author(s):  
A. F. Tencer ◽  
T. G. Mayer
Keyword(s):  
Experimental Data ◽  
Numerical Simulation ◽  
Soft Tissue ◽  
Ligamentum Flavum ◽  
Compressive Strain ◽  
Shear Resistance ◽  
Facet Joints ◽  
Lateral Bending ◽  
Tissue Strain ◽  
Comparison With Experimental Data

A numerical simulation of soft-tissue strain and facet face interaction in the lumbar intervertebral joint under load was performed. The results, compared with a previous experimental sectioning study, showed that disk fiber strain was the main mechanism in shear resistance, except posterior shear, where the facets were main load bearing members. In axial compression, compression of the annulus was found, with a significant decrease in compressive strain resulting from annulus bulging, but no contact was found in the facet joints. The posterior ligaments, except for the facet capsules and ligamentum flavum, were found to be active only in flexion and lateral bending, while the facets and the disk both played major roles in resisting axial torsion moments.

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