English  |  正體中文  |  简体中文  |  Items with full text/Total items : 69937/69937 (100%)
Visitors : 23315062      Online Users : 288
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version

    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/26907

    Title: A pdf description of turbulent axisymmetric free jet flow
    Authors: Chen,MH;Hong,ZC
    Contributors: 機械工程研究所
    Date: 1999
    Issue Date: 2010-06-29 18:02:59 (UTC+8)
    Publisher: 中央大學
    Abstract: This study presents the application of a turbulence probability density function (pdf) equation to compute an axisymmetric turbulent free jet flow. II; view of the difficulty of solving this pdf equation directly by conventional numerical methods, an approximate moment method is applied. The calculated triple velocity correlations appearing in the second-or der moments equation are calculated and compared with measured values and with those estimated by moment-closure models. The results reveal that the pdf approach gives consistency in the higher-order moments and radial budget of third moments of velocity, and that the neglect of the mean-strain production, the rapid part of the pressure correlation and the dissipation are responsible for deviations between moment-closure models and experiments. Therefore, pdf methods ap pear to be more suitable than conventional moment-closure models in terms of revealing turbulence structure.
    Appears in Collections:[機械工程研究所] 期刊論文

    Files in This Item:

    File Description SizeFormat

    All items in NCUIR are protected by copyright, with all rights reserved.

    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback  - 隱私權政策聲明