PPPL-3156 is <B>not</B> available on the WWW. <B>To obtain a paper copy of PPPL-3156 send an e-mail request to caphilli@pppl.gov</B>
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<b>Role of Flow Shear in Enhanced Core Confinement Regimes</b>
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Author: T.S. Hahm and K.H. Burrell

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The importance of the ExB flow shear in various enhanced confinement regimes is discussed in terms of the turbulence suppression criterion in toroidal geometry. This criterion is then further generalized to include the poloidal angle dependence of the equilibrium electrostatic potential. The implication of the recently observed in-out asymmetry in the fluctuation behavior in DIII-D VH-mode is discussed.
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