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Title: Interfacial exchange relations for two-fluid vapor-liquid flow: a simplified regime map approach. Final report

Technical Report ·
OSTI ID:5039597

A simplified approach is described for selection of the constitutive relations for the inter-phase exchange terms in the two-fluid code, THERMIT. The approach used distinguishes between pre-CHF and post-CHF conditions. Interfacial mass, energy and momentum exchange terms are selected and tested against one dimensional measurements for a wide range of mass flow rate, pressure and void fraction conditions. It is concluded that the simplified regime map approach leads to accurate predictions for LWR applications, excluding depressurization events.

Research Organization:
Massachusetts Inst. of Tech., Cambridge (USA). Energy Lab.
OSTI ID:
5039597
Report Number(s):
PB-82-180266; MIT-EL-81-024
Country of Publication:
United States
Language:
English