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Preconditioning Method for Very-Slow Flows With Heterogeneous Condensation in a Mixing T-Junction Channel

[+] Author Affiliations
Kei Sakakura

Idemitsu Kosan Company, Ltd., Ichihara, Chiba, Japan

Yasuhiro Sasao, Satoru Yamamoto

Tohoku University, Sendai, Japan

Paper No. FEDSM2005-77073, pp. 1025-1032; 8 pages
doi:10.1115/FEDSM2005-77073
From:
  • ASME 2005 Fluids Engineering Division Summer Meeting
  • Volume 1: Symposia, Parts A and B
  • Houston, Texas, USA, June 19–23, 2005
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 0-7918-4198-7 | eISBN: 0-7918-3760-2
  • Copyright © 2005 by ASME

abstract

The purpose of this study is to develop a numerical method for simulating condensate flow problems observed in industrial processes. The preconditioning method developed by our group is applied to the calculations of very-slow flows assuming heterogeneous condensation in a mixing T-junction channel which dry and moist air streams flowing into the channel are mixed together. A classical condensation model simplified by our group is used for evaluating condensation with heterogeneous nucleation. As shown in the calculated results, condensation in a T-junction pipe was variously influenced by the mixing type, such as stratified, turned jet, and wall jet flows. A notable difference in temperature distributions was also found with and without condensation due to the release of latent heat when condensation occurs.

Copyright © 2005 by ASME

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