Published February 1993 | Version v1
Report Restricted

The two-phase friction multiplier factor R and the slip ratio S

Creators

Description

In this report the theoretical basis for the Lottes-Flinn correlation for the two-phase friction multiplier R is investigated and a less approximative formula for R is derived. The values obtained for R (as a function of pressure and exit void fraction) from these formulas by use of various slip ratio correlations are compared with the R-values obtained by the experimental Martinelli-Nelson and other correlations. It is concluded that while some slip ratio correlations appear to be of rather dubious value, it is not possible from the present comparison to select a best slip ratio correlation or a best two-phase friction multiplier correlation to be used in the computation of boiling water reactors. (au)

Availability note (English)

MF available from INIS under the Report Number.

Files

Restricted

The record is publicly accessible, but files are restricted to users with access.

Additional details

Additional titles

Subtitle (English)
A comparison of various correlations

Publishing Information

Imprint Pagination
30 p.
Report number
DTH-AEF-NT--3

INIS

Country of Publication
Denmark
Country of Input or Organization
Denmark
INIS RN
24050693
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
BWR TYPE REACTORS; CORRELATION FUNCTIONS; FLUID MECHANICS; FRICTION FACTOR; FUEL ELEMENTS; MATHEMATICAL MODELS; NUMERICAL DATA; PRESSURE COEFFICIENT; SLIP RATIO
Descriptors DEC
DATA; ENRICHED URANIUM REACTORS; FUNCTIONS; INFORMATION; MECHANICS; POWER REACTORS; REACTIVITY COEFFICIENTS; REACTOR COMPONENTS; REACTORS; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS