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NEA-0090 DYNAMF.

DYNAMF, Time-Dependent Reactor Dynamics by Laplace Transformation

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1. NAME OR DESIGNATION OF PROGRAM:  DYNAMF.
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2. COMPUTERS
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Program name Package id Status Status date
DYNAMF NEA-0090/01 Tested 01-OCT-1965

Machines used:

Package ID Orig. computer Test computer
NEA-0090/01 CDC 3600 CDC 3600
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3. NATURE OF PHYSICAL PROBLEM SOLVED:  The reactor dynamics equation with respect to time.
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4. METHOD OF SOLUTION:  Integral method from Schmid (Geneva Conference 1958).
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

Number of delayed neutron-groups smaller than 30. Number of exponential-functions in the reactivity feedback function less than or equal to 30.
Number of exponential function in the special reactivity function less than or equal to 30. Number of time steps less than or equal to 2000.
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6. TYPICAL RUNNING TIME:  About 110 ms for each time step.
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7. UNUSUAL FEATURES OF THE PROGRAM

The problem of an ideal reactivity  jump can be computed very rapidly. The uranium and the moderator temperature can be computed.
The CDC-version of this programme gives a graph of the power, the internal and the special reactivity.
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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-0090/01 01-OCT-1965 Tested at NEADB
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10. REFERENCES
NEA-0090/01, included references:
- J. Patry:
Die numerische Loesung des Grundproblems der Reaktordynamik
mit Hilfe eines Rechenautomaten
  RAG-Bericht NR. 8 (1958).
- J. Patry:
  La determination numerique du comportement dynamique d'une pile a l'aide d'une
calculatrice  electronique
  RAG-Bericht NR. 16 (1960).
- J. Patry:
Eine Reihe von Rechenprogrammen zur Loesung reaktorkinetischer und
reaktordynamischer Probleme mit Hilfe von Faltungsintegralen
  EIR-bericht NR. 29 (1962).
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11. MACHINE REQUIREMENTS:  32k. No special tapes.
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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
NEA-0090/01 FORTRAN-IV
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13. OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED:  Normal FORTRAN-monitor.
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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

         J. Patry
         EIR
         Federal Institute for Reactor Research
         Wuerenlingen/AG
         Switzerland
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16. MATERIAL AVAILABLE
NEA-0090/01
File name File description Records
NEA0090_01.001 SOURCE 797
NEA0090_01.002 DATA 80
NEA0090_01.003 OUTPUT 6493
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17. CATEGORIES
  • E. Space-Independent Kinetics

Keywords: Lagrange equations, reactor kinetics.