scholarly journals COMPUTATIONAL INVESTIGATION OF THE EFFECT OF THE ASPECT RATIO ON SECONDARY CURRENTS IN OPEN CHANNELS

2021 ◽  
Author(s):  
MONSIF SHINNEEB ◽  
GHASSAN NASIF ◽  
RAM BALACHANDAR
Keyword(s):  
Aspect Ratio ◽  
Open Channels ◽  
Computational Investigation ◽  
Secondary Currents

Plasma etching of high aspect ratio features in SiO2 using Ar/C4F8/O2 mixtures: A computational investigation

2019 ◽  
Vol 37 (3) ◽  
pp. 031304 ◽  
Author(s):  
Shuo Huang ◽  
Chad Huard ◽  
Seungbo Shim ◽  
Sang Ki Nam ◽  
In-Cheol Song ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
Plasma Etching ◽  
High Aspect Ratio ◽  
Computational Investigation

Numerical Studies of Magnetohydrostatic Finite-Beta Stellarator Equilibria

1982 ◽  
Vol 37 (8) ◽  
pp. 879-890 ◽  
Author(s):  
F. Herrnegger
Keyword(s):  
Aspect Ratio ◽  
Three Dimensional ◽  
Pressure Profile ◽  
Large Aspect Ratio ◽  
Weak Effect ◽  
Numerical Convergence ◽  
Secondary Currents ◽  
Numerical Studies ◽  
Critical Equilibrium ◽  
Theoretical Predictions

Properties of finite-beta stellarator equilibria are investigated which are obtained as fully three-dimensional finite-beta solutions of the magnetohydrostatic boundary value problem with the help of the code by Bauer, Betancourt, and Garabedian based on the energy method. In the case of slender l = 2 stellarator equilibria the displacement of the magnetic axis as well as its helical deformation as functions of beta are found to be close to the known theoretical predictions which were derived for slender low beta l = 2 configurations of large aspect ratio. In the case of l = 2 stellarators with moderate aspect ratio the shear has a weak effect on the displacement in contradiction to results from asymptotic theories. A class of l = 0, 1, 2, 3 configurations with reduced secondary currents could be found showing axis displacements which are at least a factor of three smaller than those in pure l = 2 stellarators. A critical equilibrium beta value of βe(0) = 0.045 has been estimated in the W VII-AS stellarator for a bell-shaped pressure profile. Extensive numerical convergence studies are presented

scholarly journals Influence of the aspect ratio on the endovascular treatment of intracranial aneurysms: A computational investigation

2012 ◽  
Vol 05 (08) ◽  
pp. 422-431 ◽  
Author(s):  
Abraham Yik-Sau Tang ◽  
Siu-Kai Lai ◽  
Kar-Ming Leung ◽  
Gilberto Ka-Kit Leung ◽  
Kwok-Wing Chow
Keyword(s):  
Aspect Ratio ◽  
Endovascular Treatment ◽  
Intracranial Aneurysms ◽  
Computational Investigation
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