¥Self-regulating DW-ZF system.
¥Drift turbulence creates ZF.
¥ZF kills drift turbulence and switches the forcing off (cf Dimits shift).
¥For large grad T small scales reappear because ZF gets KH unstable.
¥Predictions
for the saturated ZF, scale separation, jet-like
spectrum of drift turbulence.
¥Experimental evidence in Heliac. Tokamaks?