Laser-induced-fluorescence characterization of velocity shear in a magnetized plasma column produced by a segmented, Q-machine source

2005 ◽  
Vol 12 (7) ◽  
pp. 072103 ◽  
Author(s):  
E. W. Reynolds ◽  
T. Kaneko ◽  
M. E. Koepke ◽  
R. Hatakeyama
Keyword(s):  
Plasma Column ◽  
Laser Induced Fluorescence ◽  
Magnetized Plasma ◽  
Velocity Shear

Hydrodynamic Modeling of Cerebrospinal Fluid Motion Within the Spinal Cavity

2000 ◽  
Author(s):  
M. Atif Yardimci ◽  
Francis Loth ◽  
Noam Alperin
Keyword(s):  
Pressure Gradient ◽  
Spinal Canal ◽  
Fluid Motion ◽  
Velocity Shear ◽  
Sectional Area ◽  
Flow Waveform ◽  
Cross Sectional ◽  
Gradient Fields ◽  
Gradient Waveform

Abstract In the present work, a geometric and hydrodynamic characterization of an anatomically relevant spinal canal model is presented. A numerical model was employed to investigate effects of cross-sectional geometry and spinal cord motion on unsteady velocity, shear stress, and pressure gradient fields. The velocity field was shown to be blunt, due to the inertial character of the flow, with velocity peaks located near the boundaries of the spinal canal rather than at the midpoint between boundaries. The pressure gradient waveform was found to be almost exclusively dependent on the flow waveform and cross-sectional area.

Sign in / Sign up

Export Citation Format

Share Document