2013年
Study of two elements constituting turbulence by a multifractal theory for probability density functions - Through the analyses of 4096(3) DNS
IC-MSQUARE 2012: INTERNATIONAL CONFERENCE ON MATHEMATICAL MODELLING IN PHYSICAL SCIENCES
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- 巻
- 410
- 号
- 1
- 開始ページ
- 012083
- 終了ページ
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1088/1742-6596/410/1/012083
- 出版者・発行元
- IOP PUBLISHING LTD
The probability density functions (PDFs) of energy dissipation rates created from the whole of the DNS region of the size 4096(3) (named whl-PDFs) for various sizes of coarse graining areas are analyzed by multifractal PDF theory (MPDFT). Furthermore, other PDFs named max-PDF and mm-PDF for various sizes of coarse graining areas, created respectively from the partial DNS regions of the size 512(3) with maximum and minimum enstrophy, are also analyzed by making use of the whl-PDF. It is shown that there is a whl-PDF with an appropriate size of coarse graining area, whose slope of the tail part can adjust the slope of the tail-part of a max-PDF. On the other hand, there is a whl-PDF whose center part can adjust quite accurately the center part of a min-PDF. Note that the partial DNS region with maximum (minimum) enstrophy is the region of maximally dense (rare) vortexes, and therefore contributes mainly to the tail (center) part of the whl-PDF. It is found that these adjustments are systematic with respect to the sizes of coarse graining areas.
- リンク情報
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- DOI
- https://doi.org/10.1088/1742-6596/410/1/012083
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000315409700083&DestApp=WOS_CPL
- Scopus
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84875712170&origin=inward 本文へのリンクあり
- Scopus Citedby
- https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84875712170&origin=inward
- ID情報
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- DOI : 10.1088/1742-6596/410/1/012083
- ISSN : 1742-6588
- eISSN : 1742-6596
- SCOPUS ID : 84875712170
- Web of Science ID : WOS:000315409700083