管内の乱流城におけるエアロゾル粒子沈着 -垂直管内の沈着-

  • 松井 浩
    日本原子力研究所東海研究所保健物理部
  • 村田 幹生
    日本原子力研究所東海研究所保健物理部

書誌事項

タイトル別名
  • Deposition of Aerosol Particles in Turbulent Flow of Pipe — Deposition in Vertical Pipe —

抄録

A sampling line used for collecting aerosol particles for dust monitoring generally consists of vertical, horizontal and bent pipes. To estimate the aerosol deposition onto the sampling line as accurately as possible is required for proper evaluation of aerosol concentration. This paper describes the derivation of the reasonable equation of particle deposition velocities onto the vertical pipe wall, where a free flight model by Friedlander et al. and a turbulent particle diffusivity by Lin et al. were used. In particular, a problem concerned with the starting point of free flight of particles is eliminated, and the introduction of Brownian diffusivity for smaller particles and a correction factor to the assumed lag between fluid and particle motions, in the turbulent core of the flowing fluid, for larger particles makes the deposition velocity equation applicable for the whole range of particle size and fluid Reynolds number.

収録刊行物

被引用文献 (1)*注記

もっと見る

詳細情報

  • CRID
    1390282679317778176
  • NII論文ID
    130000779182
  • DOI
    10.11203/jar.7.230
  • ISSN
    1881543X
    09122834
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

問題の指摘

ページトップへ