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Further Aspects of Large Eddy Simulation Model Statistics and Inconsistencies with Field Data

Further Aspects of Large Eddy Simulation Model Statistics and Inconsistencies with Field Data This study has employed the concept of bandpass filtering of aircraft field data that are obtained within convective planetary boundary layers, for the purpose of comparing the characteristic turbulence statistics with the results of large eddy simulation (LES) models. Field data from Project LESS (10 January 1984) conducted over Lake Michigan in wintertime cold air outbreaks have been used to demonstrate the validity of the concept presented. These results show excellent agreement in variance statistics for LESS filtered data and LES model simulations; however, agreement in the skewness statistics is unsatisfactory. This is attributed to either the authors’ inability to design a proper bandpass filter or the lack of an adequate dataset for computing third-moment statistics. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of the Atmospheric Sciences American Meteorological Society

Further Aspects of Large Eddy Simulation Model Statistics and Inconsistencies with Field Data

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References (7)

Publisher
American Meteorological Society
Copyright
Copyright © 1998 American Meteorological Society
ISSN
1520-0469
DOI
10.1175/1520-0469(1999)056<2948:FAOLES>2.0.CO;2
Publisher site
See Article on Publisher Site

Abstract

This study has employed the concept of bandpass filtering of aircraft field data that are obtained within convective planetary boundary layers, for the purpose of comparing the characteristic turbulence statistics with the results of large eddy simulation (LES) models. Field data from Project LESS (10 January 1984) conducted over Lake Michigan in wintertime cold air outbreaks have been used to demonstrate the validity of the concept presented. These results show excellent agreement in variance statistics for LESS filtered data and LES model simulations; however, agreement in the skewness statistics is unsatisfactory. This is attributed to either the authors’ inability to design a proper bandpass filter or the lack of an adequate dataset for computing third-moment statistics.

Journal

Journal of the Atmospheric Sciences – American Meteorological Society

Published: Jul 24, 1998

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