Random Coefficient H-mode Confinement Scalings

@article{Riedel1992RandomCH,
  title={Random Coefficient H-mode Confinement Scalings},
  author={Kurt S. Riedel},
  journal={arXiv: Plasma Physics},
  year={1992}
}
  • K. Riedel
  • Published 1 July 1992
  • Physics, Computer Science
  • arXiv: Plasma Physics
The random coefficient two-stage regression algorithm with the collisional Maxwell-Vlasov constraint is applied to the ITER H-mode confinement database. The data violate the collisional Maxwell-Vlasov constraint at the 10-30% significance level, probably owing to radiation losses. The dimensionally constrained scaling, $\tau_E = 0.07192 M^{1/2}$ $(R/a)^{-0.221} R^{1.568} \kappa^{.3} I_p^{.904} B_t^{.201} \bar{n}^{0.106} P^{-0.493}$, is similar to ITER89P with a slightly stronger size dependence… 
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5 Citations

5 Citations

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Citation Type

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TLDR
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The large multiplicity of scaling laws which almost fit the data is associated with the near degeneracy of the data covariance matrix. The traditional analysis assumes that only discharge to…
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