Random coefficient H-mode confinement scalings

摘要

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,E= 0.07192M1/2(R/a)-0.221R1.5680.300Ip0.904Bt0.201n0.106P-0.493, is similar to ITER89P with a slightly stronger size dependence