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Study of second-order turbulence closure technique and its application to atmospheric flows

dc.contributor.authorFlatau, Piotr J., author
dc.contributor.authorDepartment of Atmospheric Science, Colorado State University, publisher
dc.descriptionFall 1985.
dc.descriptionIncludes bibliographical references (pages 66-69).
dc.description.abstractThe applicability of the second-order turbulence closure technique to atmospheric mesoscale flows is investigated. Analytical and numerical studies of various closure schemes are performed. Theoretical investigations of the well-known Mellor and Yamada approach result in new realizability conditions for the Level 2.5 and Level 3.0 schemes. The bulk parameters (eddy exchange coefficients) are calculated from the full second order closure model. The comparison of these parameters with the experimental data reveals that the simple Richardson number-based scaling is not adequate. The Level 2.5 and Level 4.0 models are developed and applied to a California stratocumulus case. The new realizability conditions are applied in the Level 2.5 model. The results are presented and show good agreement with experimental data collected off the California shoreline. On the basis of these studies, conclusions about applicability of simplified second-order turbulence closure technique are formulated.
dc.description.sponsorshipSupported by the Air Force Geophysics Laboratory under contract #F19628-84-C0005.
dc.description.sponsorshipSupported by the Electric Power Research Institute under contract #RFP 1630-25.
dc.publisherColorado State University. Libraries
dc.relationCatalog record number (MMS ID): 991023639209703361
dc.relationQC852.C6 no.393
dc.relation.ispartofAtmospheric Science Papers (Blue Books)
dc.relation.ispartofAtmospheric science paper, no. 393
dc.rights©[1985] by Department of Atmospheric Science, Colorado State University.
dc.rightsCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see
dc.subject.lcshAtmospheric turbulence -- Mathematical models
dc.titleStudy of second-order turbulence closure technique and its application to atmospheric flows
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