Hydrodynamics of post CHF region

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Among various two-phase flow regimes, the inverted flow in the post-dryout region is relatively less well understood due to its special heat transfer conditions. The review of existing data indicates further research is needed in the areas of basic hydrodynamics related to liquid core disintegration mechanisms, slug and droplet formations, entrainment, and droplet size distributions. In view of this, the inverted flow is studied in detail both analytically and experimentally. Criteria for initial flow regimes in the post-dryout region are given. Preliminary models for subsequent flow regime transition criteria are derived together with correlations for a mean droplet diameter based ... continued below

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Pages: 31

Creation Information

Ishii, M. & De Jarlais, G. April 1, 1984.

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Description

Among various two-phase flow regimes, the inverted flow in the post-dryout region is relatively less well understood due to its special heat transfer conditions. The review of existing data indicates further research is needed in the areas of basic hydrodynamics related to liquid core disintegration mechanisms, slug and droplet formations, entrainment, and droplet size distributions. In view of this, the inverted flow is studied in detail both analytically and experimentally. Criteria for initial flow regimes in the post-dryout region are given. Preliminary models for subsequent flow regime transition criteria are derived together with correlations for a mean droplet diameter based on the adiabatic simulation data.

Physical Description

Pages: 31

Notes

NTIS, PC A03/MF A01; 1.

Source

  • International workshop on fundamental aspects of post-dryout heat transfer, Salt Lake City, UT, USA, 2 Apr 1984

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  • Other: DE84011711
  • Report No.: CONF-8404146-1
  • Grant Number: W-31-109-ENG-38
  • Office of Scientific & Technical Information Report Number: 7155993
  • Archival Resource Key: ark:/67531/metadc1443066

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • April 1, 1984

Added to The UNT Digital Library

  • Feb. 10, 2019, 8:45 p.m.

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  • Feb. 12, 2019, 7:27 p.m.

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Ishii, M. & De Jarlais, G. Hydrodynamics of post CHF region, article, April 1, 1984; Illinois. (https://digital.library.unt.edu/ark:/67531/metadc1443066/: accessed May 20, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.