正方形密閉容器に満たされた二成分ガス系の二重拡散対流に及ぼすルイス数の影響

• 西村 龍夫 /

• MOREGA AlexandruM.

書誌事項

タイトル別名

• Influence of Lewis Number on Double-Diffusive Convection in a Square Cavity Filled with Binary Gas.
• セイホウケイ ミッペイ ヨウキ ニ ミタサレタ 2セイブン ガスケイ ノ 2ジ

抄録

This paper presents double-diffusive convection in a square cavity filled with binary gas, due to horizontal opposing temperature and concentration gradients. The effect of Lewis number was considered under the conditions of Prandtl number Pγ=1, buoyancy ratio N=1 and thermal Rayleigh number Ra_r=10⁴ and 10⁵. Numerical solutions are obtained by a Chebyshev collocation technique with high resolution. Depending upon the Lewis number, three kinds of flow structures are identified, i.e., symmetric steady flow, asymmetric oscillatory flow and symmetric oscillatory flow. Oscillatory flow occurs in the regime of thermal dominant flow and it leads to a periodic change between stable and unstable states in species stratification due to the thermo-solutal interaction.

収録刊行物

• 日本機械学会論文集Ｂ編

  日本機械学会論文集Ｂ編 64 (626), 3423-3429, 1998

  一般社団法人 日本機械学会

キーワード

• Oscillatory Flow

詳細情報

• CRID: 1390282680872399744
• NII論文ID: 130004223189
• NII論文ID: 110002397307
• NII書誌ID: AN00187441
• DOI: 10.1299/kikaib.64.3423
• ISSN: 18848346
• ISSN: 03875016
• NDL書誌ID: 4592559
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4592559
• Web Site: http://www.jstage.jst.go.jp/article/kikaib1979/64/626/64_626_3423/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可