Intermittent Dissipation of a Passive Scalar in Turbulence
نویسندگان
چکیده
M. Chertkov,1 G. Falkovich,2 and I. Kolokolov3 1Physics Department, Princeton University, Princeton, New Jersey 08544 2Institute for Advanced Study, Princeton, New Jersey and Weizmann Institute, Rehovot, Israel 3Budker Institute of Nuclear Physics, Novosibirsk 630090, Russia (Received 3 September 1997) The probability density function (PDF) of passive scalar dissipation P sed is found analytically in the limit of large Peclet and Prandtl numbers (Batchelor-Kraichnan regime) in two dimensions. The tail of PDF at e ¿ kel is shown to be stretched exponent ln P sed ~ e1y3; at e ø kel, P ~ 1ype. [S0031-9007(98)05479-9]
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