Published February 1989 | Version v1
Report Restricted

An assessment of the annular flow transition criteria and interphase friction models in RELAP5/MOD2

Creators

Description

An assessment of the annular flow transition criteria and interphase friction models for two-phase flow in tubes used in RELAP5/MOD2 code is described. The assessment examines the theoretical bases for the criteria and models and considers the results of comparisons with experimental data. Several deficiencies in the transition criteria are identified and appropriate improvements proposed. The interphase friction models are found to be adequate for PWR analyses. (author)

Availability note (English)

MF available from INIS under the Report Number.

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Additional details

Publishing Information

Imprint Pagination
34 p.
Report number
CEGB-RD-L--3451/R89

INIS

Country of Publication
United Kingdom
Country of Input or Organization
United Kingdom
INIS RN
21014574
Subject category
S42: ENGINEERING;
Descriptors DEI
FLOW MODELS; FRICTION FACTOR; PWR TYPE REACTORS; R CODES; REACTOR COOLING SYSTEMS; TUBES; TWO-PHASE FLOW; VERIFICATION; VOID FRACTION
Descriptors DEC
COMPUTER CODES; COOLING SYSTEMS; ENRICHED URANIUM REACTORS; FLUID FLOW; MATHEMATICAL MODELS; POWER REACTORS; REACTOR COMPONENTS; REACTORS; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS

Optional Information

Secondary number(s)
PWR-HTWG-P--(88)653.