NEA-0534 EREBUS.

EREBUS, Burnup by 2-D MultiGroup Neutron Diffusion with Criticality Search

NAME OR DESIGNATION OF PROGRAM, COMPUTER, NATURE OF PHYSICAL PROBLEM SOLVED, METHOD OF SOLUTION, RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM, 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: EREBUS.

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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
EREBUS	NEA-0534/01	Tested	01-OCT-1977

Machines used:

Package ID	Orig. computer	Test computer
NEA-0534/01	IBM 370 series	IBM 370 series

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3. NATURE OF PHYSICAL PROBLEM SOLVED

EREBUS (Evaluation of Reactor Evolution with Burn-up and Searches) is a multigroup diffusion depletion code in two dimensions, with criticality searches. Some outstanding features are: more sets of cross-section libraries and self shielding factors, 3 types of criticality searches, possibility of changing sets of data at prefixed time-steps, 2 types of restart of interrupted problems, arbitrary isotopic chains, automatic fuel shuffling.

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4. METHOD OF SOLUTION

The mathematical model employed for the solution of the finite difference equations, derived from a five-points discretization of diffusion equations, is the one-line Chebyshev semi-iterative method.

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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

List of maximum values (limitations):
library sets = 5
self-shielding sets = 5
compositions = 40
self-shielding coefficients = 5000
groups = 15
fuel isotopes = 20
fission products = 20
isotopes = 40
burnable isotopes = 29
control banks = 100
mesh points = 10000
regions = 300
time-steps = 50
control areas = 100
small time-steps = 150
elements in the control list = 400
rows = 200
columns = 200

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6. TYPICAL RUNNING TIME: Between 5 and 15 mins

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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-0534/01	01-OCT-1977	Tested at NEADB

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10. REFERENCES

NEA-0534/01, included references:

- M. Console, A. Daneri, E. Salina:
  A Multi-Group Diffusion-Depletion Program in Two Dimensions
  for the IBM-360
  FN-E-88 (November 1967).

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11. MACHINE REQUIREMENTS: Between 200 and 300k bytes plus magnetic tapes.

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12. PROGRAMMING LANGUAGE(S) USED

Package ID	Computer language
NEA-0534/01	FORTRAN-IV

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13. OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED: IBM/360 OS.

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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

     M. Console, A. Danieri, E. Salina
     Joint Research Centre
     21020 - Ispra Italy

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16. MATERIAL AVAILABLE

NEA-0534/01

File name	File description	Records
NEA0534_01.001	EREBUS SOURCE - F4 EBCDIC	6467
NEA0534_01.002	EREBUS SAMPLE PROBLEM INPUT	271
NEA0534_01.003	EREBUS OVERLAY CARDS	23
NEA0534_01.004	EREBUS JOB CONTROL	13
NEA0534_01.005	EREBUS SAMPLE PROBLEM PRINTED OUTPUT	5250
NEA0534_01.006	EREBUS SAMPLE PROBLEM PUNCHED OUTPUT	64