NEA-0380 MATRA.

MATRA, Void Simulation in Steam and H2O Mixture Channel in Accident

NAME OR DESIGNATION OF PROGRAM, COMPUTER, NATURE OF PHYSICAL PROBLEM SOLVED, METHOD OF SOLUTION, RESTRICTIONS, TYPICAL RUNNING TIME, FEATURES, AUXILIARIES, STATUS, REFERENCES, MACHINE REQUIREMENTS, LANGUAGE, OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED, OTHER RESTRICTIONS, NAME AND ESTABLISHMENT OF AUTHOR, MATERIAL, CATEGORIES

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1. NAME OR DESIGNATION OF PROGRAM: MATRA.

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2. COMPUTERS

To submit a request, click below on the link of the version you wish to order. Rules for end-users are available here.

Program name	Package id	Status	Status date
MATRA	NEA-0380/01	Tested	01-MAY-1973

Machines used:

Package ID	Orig. computer	Test computer
NEA-0380/01	IBM 370 series	IBM 370 series

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3. NATURE OF PHYSICAL PROBLEM SOLVED

The program simulates the voiding following an accident, of a constant area channel, either heated or adiabatic in which a steam-water mixture flows. Subcooled water may be present in the initial part of the channel.

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4. METHOD OF SOLUTION

A partially simplified model has been used for the non-stationary hydrodynamics of a two-phase flow, based on mass and energy conservation equations. The deriving system of quasi-linear partial differential equations has been integrated by using the method of the characteristic curves.

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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

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6. TYPICAL RUNNING TIME

Depends very much on data. A sample problem took 50 sec on UNIVAC 1108.

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7. UNUSUAL FEATURES: UNUSUAL FEATURES OF THE PROGRAM

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8. RELATED OR AUXILIARY PROGRAMS: RELATED AND AUXILIARY PROGRAMS

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9. STATUS