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NEA-0067 COSTANZA.

COSTANZA, 1-D 2 Group Space-Dependent Reactor Dynamics of Spatial Reactor with 1 Group Delayed Neutrons

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1. NAME OR DESIGNATION OF PROGRAM:  COSTANZA.
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2. COMPUTERS
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Program name Package id Status Status date
COSTANZA NEA-0067/01 Tested 01-JUL-1964

Machines used:

Package ID Orig. computer Test computer
NEA-0067/01 IBM 7090 IBM 7090
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3. NATURE OF PHYSICAL PROBLEM SOLVED

The programme studies the spatial dynamics of reactor TESI, in the two group and one space dimension approximation. Only one group of delayed neutrons is considered.
The programme simulates the vertical movement of the control rods according to any given movement law. The programme calculates the evolution of the fluxes and temperature and precursor concentration  in space and time during the power excursion.
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4. METHODS: METHOD OF SOLUTION
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM:  The maximum number of lattice points is 100.
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6. TYPICAL RUNNING TIME:  The computer time is about 0,15 sec. Per time  step.
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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
Package ID Status date Status
NEA-0067/01 01-JUL-1964 Tested at NEADB
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10. REFERENCES
NEA-0067/01, included references:
- R. Monterosso and E. Vincenti:
  Finite Difference Method for Solving the Spatio-Temporal Diffusion
  Equation in the Two-Group Approximation
  EUR 596.e (1964).
- A. Agazzi, R. Monterosso, E. Vincenti:
  COSTANZA, A Numerical Code for the Study of the Reactor Spatial
  Dynamics in Two Groups
  EUR 2103.e.
- A. Agazzi, R. Monterosso, E. Vincenti:
  The Code COSTANZA
  EUR 2104.e.
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11. HARDWARE REQUIREMENTS: MACHINE REQUIREMENTS
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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
NEA-0067/01 FORTRAN-II (IBM)
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13. SOFTWARE REQUIREMENTS: OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED
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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS

ANY OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS
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15. NAME AND ESTABLISHMENT OF AUTHOR

     A. Agazzi and C. Gavazzi S.P.A.
     Milano, Italy

     E. Vincenti and R. Monterosso
     EURATOM
     Ispra, Italy
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16. MATERIAL AVAILABLE
NEA-0067/01
File name File description Records
NEA0067_01.001 SOURCE & DATA 953
NEA0067_01.002 OUTPUT 143
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17. CATEGORIES
  • F. Space - Time Kinetics, Coupled Neutronics - Hydrodynamics - Thermodynamics

Keywords: control elements, excursions, mechanics, neutron flux, temperature distribution.