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The Refined Kolmogorov Similarity Hypothesis is a valuable tool for thedescription of intermittency in isotropic conditions. For flows in presence ofa substantial mean shear, the nature of intermittency changes since the processof energy transfer is affected by the turbulent kinetic energy productionassociated with the Reynolds stresses. In these conditions a new form ofrefined similarity law has been found able to describe the increased level ofintermittency which characterizes shear dominated flows. Ideally a length scaleassociated with the mean shear separates the two ranges, i.e. the classicalKolmogorov-like inertial range, below, and the shear dominated range, above.However, the data analyzed in previous papers correspond to conditions wherethe two scaling regimes can only be observed individually.  In the present letter we give evidence of the coexistence of the two regimesand support the conjecture that the statistical properties of the dissipationfield are practically insensible to the mean shear. This allows for atheoretical prediction of the scaling exponents of structure functions in theshear dominated range based on the known intermittency corrections forisotropic flows. The prediction is found to closely match the availablenumerical and experimental data.Comment: 7 pages, 3 figures, submitted to PR

Double scaling and intermittency in shear dominated flows