WebDownload scientific diagram Comparison of the experimental thermal energy with the prediction from IPB98y2 scaling law (•) with the pure gyro-Bohm scaling law ( ) for JET hybrid discharges ... http://fusionwiki.ciemat.es/wiki/Scaling_law
(PDF) Size Scaling of Turbulent Transport in ... - ResearchGate
The electron gyro-center shift is relatively small since the electron gyro-radius is much smaller than ion's so it can be disregarded. Once ions move across the magnetic field by the gyro-center shift, this movement generates spontaneous electric unbalance between in and out of the plasma. See more The diffusion of plasma across a magnetic field was conjectured to follow the Bohm diffusion scaling as indicated from the early plasma experiments of very lossy machines. This predicted that the rate of diffusion was linear … See more It was first observed in 1949 by David Bohm, E. H. S. Burhop, and Harrie Massey while studying magnetic arcs for use in isotope separation. It has since been observed that many … See more In light of the calculation above, it is tempting to think of Bohm diffusion as classical diffusion with an anomalous collision rate that … See more Bohm diffusion is characterized by a diffusion coefficient equal to $${\displaystyle D_{\rm {Bohm}}={\frac {1}{16}}\,{\frac {k_{\rm {B}}T}{eB}},}$$ where B is the magnetic field strength, T is the electron gas temperature, e is the elementary charge, … See more Generally diffusion can be modeled as a random walk of steps of length $${\displaystyle \delta }$$ and time $${\displaystyle \tau }$$. If the diffusion is collisional, then See more • Physics portal • Classical diffusion • Hsu diffusion • Plasma diffusion See more WebJan 1, 1993 · By contrast, most theories predict gyro-Bohm scaling: F∝ρ*. Bohm scaling implies that the largest scale size for microinstability turbulence depends on machine size. Analysis of a collisionality scan finds Bohm-normalized power flow to be independent of collisionality. Implications for future theory, experiment, and reactor extrapolations ... how to enable bing ai cha
A gyro-Landau-fluid transport model
WebDec 31, 1996 · Simulations showed gyro-Bohm scaling for the sheared slab. Subsequent theoretical studies in toroidal geometry gave global radial mode widths of order a ( {rho}*) … WebFeb 19, 2004 · An intriguing observation in magnetically confined plasma experiments and in global gyrokinetic particle simulations of toroidal ion temperature gradient turbulence is that the fluctuations are microscopic, while the resulting turbulent transport is not gyro-Bohm [Z. Lin et al., Phys. Rev. Lett. 88, 195004 (2002)].A possible resolution to this … WebOct 1, 2004 · The U.S. Department of Energy's Office of Scientific and Technical Information how to enable bing wallpaper slideshow