NAUA-MOD5 NAUA-MOD5/M: Aerosols in Reactor Containment During Meltdown.
Laboratorium für Aerosolphysik und Filtertechnik Projekt Nukleare Sicherheit Kernforschungszentrum Karlsruhe GmbH, Karlsruhe, Germany, through the OECD NEA Data Bank, Issy-les-Moulineaux, France.
Fortran 77; IBM 3090, DEC Vax (P00556MNYCP00).
NAUA-MOD5 and NAUA-MOD5/M calculate the behavior of a polydisperse aerosol system in a closed container. This container can be subdivided into a number of sub compartments geometrically separated but coupled by gas flows. For NAUA-MOD5/M an arbitrary configuration of sub compartments and flow patterns can be treated.
Because of different floating point arithmetic between the two machines, VAX and IBM results are always liable to differ at the 6 d.p. level; these differences can conspire to produce more significant differences in small final results. This seems to be the case here, with many differences visible at the 2 d.p. level; the VAX also took slightly fewer time steps in each of the runs. However, these differences do not appear to affect the important results. The shortened concatenated original IBM o/p is in file 18 for comparison.
The code will not run on modern PCs.
The tests included in this package were run by NEA-DB on a VAX 8810 computer. The total execution time for all the test cases for NAUA-MOD5 was about 6 hours and 30 minutes. The test case for NAUA-MOD5/M required 36 minutes of CPU time.
All test cases ran on an IBM 3090 in 656K bytes of main storage.
VAX/VMS V4.6 and V5.0-1.
W. Schöck, H. Bunz and M. Koyro, Measurement of Steam Condensation on Aerosols under LWR Accident Conditions, KfK-3153 (August 1981) Kernforschungszentrum Karlsruhe, Germany (in German).
H. Bunz, M. Koyro and W. Schöck, NAUA-MOD3 - A Computer Code for the Description of the Aerosol Behaviour in a Condensing Atmosphere KfK-3154 (September 1981) Kernforschungszentrum Karlsruhe, Germany (in German).
H. Bunz, M. Koyro and W. Schöck, NAUA-MOD4 - A Code for Calculating Aerosol Behaviour in LWR Core Melt Accidents, Code Description and Users Manual, KfK-3554 (August 1983) Kernforschungszentrum Karlsruhe, Germany.
H. Bunz, M. Koyro and W. Schöck, NAUA-MOD5 and NAUA-MOD5-M: Two Computer Codes for the Description of the Aerosol Behaviour in the Containment System of a LWR after a Core Melt Accident, KfK-4278 (September 1987) Kernforschungszentrum Karlsruhe, Germany (in German).
The package contains reference material, documentation and source code on a single CD-rom.
KEYWORDS: AEROSOLS, CONTAINMENT, LWR, REACTOR SAFETY