DMA内部の粒子濃度の偏りに及ぼす構造と操作条件の影響のシミュレーションによる検討

  • 浅井 琢也
    広島大学工学部第三類化学工学講座 日本たばこ産業(株) たばこ中央研究所
  • 島田 学
    広島大学工学部第三類化学工学講座
  • 奥山 喜久夫
    広島大学工学部第三類化学工学講座
  • 金 泰吾
    広島大学工学部第三類化学工学講座
  • 小松原 誠
    広島大学工学部第三類化学工学講座

書誌事項

タイトル別名
  • Numerical Simulation on the Effects of Internal Geometry and Operating Conditions on Particle Concentration Distribution within a Differential Mobility Analyzer
  • DMA ナイブ ノ リュウシ ノウド ノ カタヨリ ニ オヨボス コウゾウ ト ソウサ ジョウケン ノ エイキョウ ノ シミュレーション ニ ヨル ケントウ

この論文をさがす

抄録

Effects of internal geometry and operating conditions on the aerosol flow pattern in a differential mobility analyzer (DMA) were numerically investigated. The internal three-dimensional structure of a Cluster-DMA (Okuyama et al., J. Aerosol Res., Jpn., 13, 83 (1998)) was employed to simulate the complex flow patterns in the DMA, including the swirling flow that develops near the aerosol inlet slit. The predicted aerosol flow in the DMA was affected by the width of inlet slit and the flow rate of sheath-air. The calculated results agreed with previous experimental results obtained by the flow visualization, in which the aerosol fed into the DMA was unevenly distributed along the circumference of the inlet slit when the slit width and the flow rate were large. The calculation also suggested that the nonuniform radial distribution of the aerosol near the inlet slit also affects the entire classification region of the DMA.

収録刊行物

参考文献 (8)*注記

もっと見る

詳細情報 詳細情報について

問題の指摘

ページトップへ