8. OtherRegimes_web

8. OtherRegimes_web - ENU 4134 Other Co-Current Flow...

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Unformatted text preview: ENU 4134 Other Co-Current Flow Regimes D. Schubring July 28, 2010 Learning Objectives I 1-f-i Characterize the various regimes of two-phase flow I 1-f-vi Develop a basic understanding of other flow regimes in horizontal and vertical co-current flow Other Regimes I Vertical intermittent flow (slug and churn) I Horizontal flow stratified, wavy, wavy-annular, annular I Other geometries Vertical Slug Flow In slug flow, the flow is strongly time-dependent, but circumferential independence is mostly maintained. The IATE can be extended into the slug flow regime using a 2 (or more) group approach. There are some concerns relating to heat transfer and CHF. The wall is sometimes covered by liquid (bubbly-like) and sometimes a very thin film (annular-like) that may move downward or stagnate. As well see, these two situations are dealt with very differently in the CHF correlations. Vertical Churn Flow Two different flow patterns are called churn flow....
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This note was uploaded on 02/07/2011 for the course ENU 4134 taught by Professor Schubring during the Spring '11 term at University of Florida.

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8. OtherRegimes_web - ENU 4134 Other Co-Current Flow...

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