Multi-scale modeling of an amine sorbent fluidized bed adsorber with dynamic discrepancy reduced modeling

2017 ◽  
Vol 2 (4) ◽  
pp. 550-560 ◽  
Author(s):  
Kuijun Li ◽  
Priyadarshi Mahapatra ◽  
K. Sham Bhat ◽  
David C. Miller ◽  
David S. Mebane
Keyword(s):  
Fluidized Bed ◽  
Kinetic Models ◽  
Large Scale ◽  
Chemical Kinetic ◽  
Process Models ◽  
Multi Scale ◽  
Scale Modeling ◽  
Reduced Modeling ◽  
Multi Scale Modeling

Inaccuracy in chemical kinetic models is a problem that affects the reliability of large-scale process models.

Multi-Scale Modeling of Wind-Wave Interaction in the Presence of Offshore Structures for Renewable Energy Applications

2010 ◽  
Author(s):  
Yi Liu ◽  
Di Yang ◽  
Xin Guo ◽  
Lian Shen
Keyword(s):  
Immersed Boundary Method ◽  
Large Scale ◽  
Wind Wave ◽  
Offshore Structures ◽  
Local Scale ◽  
Immersed Boundary ◽  
Multi Scale ◽  
Scale Modeling ◽  
Boundary Method ◽  
Multi Scale Modeling

We develop a multi-scale modeling capability for the simulation of wind and wave coupling dynamics, with a focus on providing environmental input for wind and wave loads on offshore structures. For the large-scale wind–wave environment, large-eddy simulation for the wind turbulence and high-order spectral simulation for the nonlinear ocean waves are dynamically coupled. For the local-scale air and water flows past the structure, we use a hybrid interface capturing and immersed boundary method. Coupled level-set/volume-of-fluid/ghost-fluid method is used to capture the wave surface. Immersed boundary method is used to represent the structure. The large-scale wind–wave simulation provides inflow boundary conditions for the local-scale air–water–structure simulation. Our simulation captures the dynamic evolution of ocean nonlinear wavefield under the wind action. The wind field is found to be strongly coupled with the surface waves and the wind load on a surface-piercing object is largely wave-phase dependent.

Advanced Steel Design by Multi-Scale Modeling

2010 ◽  
Vol 654-656 ◽  
pp. 41-46 ◽  
Author(s):  
Bruno C. De Cooman ◽  
H.K.D.H. Bhadeshia ◽  
Frédéric Barlat
Keyword(s):  
Large Scale ◽  
Lattice Stability ◽  
Scale Production ◽  
Critical Material ◽  
Present Contribution ◽  
Reliable Determination ◽  
Multi Scale ◽  
Scale Modeling ◽  
Multi Scale Modeling ◽  
Steel Design

The present contribution highlights the approach to multi-scale steel design used at the Graduate Institute of Ferrous Technology (GIFT). Multi-scale modeling combining ab-initio methods, molecular dynamics, crystal plasticity modeling etc. enables GIFT researchers to gain a better fundamental understanding of phase and lattice stability, magnetic properties and basic mechanical constants. In addition, these methods allow for the reliable determination of critical material parameters. The opportunities for the development of new steel grade is thereby greatly enhanced and, when these new materials-oriented methods are combined with the more traditional engineering modeling methods, the challenges related to the large scale production of new steel grades can also be addressed.

Multi-Scale Modeling of Cementitious Materials (Briefing Chart)

2014 ◽  
Author(s):  
M. M. Shahzamanian ◽  
T. Tadepalli ◽  
A. M. Rajendran ◽  
W. D. Hodo ◽  
R. Mohan ◽  
...  
Keyword(s):  
Cementitious Materials ◽  
Multi Scale ◽  
Scale Modeling ◽  
Multi Scale Modeling

Multi-Scale Modeling of Neural Structure in X-Ray Imagery

2021 ◽  
Author(s):  
Aishwarya Balwani ◽  
Joseph Miano ◽  
Ran Liu ◽  
Lindsey Kitchell ◽  
Judy A. Prasad ◽  
...  
Keyword(s):  
Neural Structure ◽  
X Ray ◽  
Multi Scale ◽  
Scale Modeling ◽  
Multi Scale Modeling
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