Published September 1985 | Version v1
Report Restricted

COMMIX-2: a three-dimensional transient computer program for thermal-hydraulic analysis of two-phase flows

Description

The mathematical bases of the computer program COMMIX-2 are described in detail. COMMIX-2, which describes steady-state and transient single and two-phase flow conditions, has been developed from the single-phase flow version of COMMIX, COMMIX-1A, and relies on the same concepts of volume porosity, directional surface porosity, distributed resistance, and heat source. Two models for two-phase flow are included in the program: one is a three-equation Slip Model (SM), which assumes either a constant slip ratio between the phase velocities, or a relative slip velocity normalized by the mixture velocity; the other is a five-equation unequal phase velocity, equal phase temperature (UVET) model, which is referred to as the Separated Phases Model (SPM). This report documents the state of the program development as of October 1984. 12 refs

Availability note (English)

MF available from INIS under the Report Number; Available from NTIS, PC A06/MF A01 - GPO as TI86005693.

Files

Restricted

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Additional details

Publishing Information

Imprint Pagination
123 p.
Report number
NUREG/CR--4371

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
17065177
Subject category
S42: ENGINEERING;
Descriptors DEI
ALGORITHMS; COMPUTERIZED SIMULATION; HYDRAULICS; MASS TRANSFER; MATHEMATICAL MODELS; THERMODYNAMICS; THREE-DIMENSIONAL CALCULATIONS; TRANSIENTS; TWO-PHASE FLOW
Descriptors DEC
FLUID FLOW; SIMULATION

Optional Information

Secondary number(s)
ANL--85-47.