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[Program Service | Recent programs]

NEA-0315 EXPANDA-70. (Abstract last modified 01-DEC-1971)


EXPANDA-70, 1-D Neutron Diffusion in Slab, Cylindrical, Spherical Geometry with Criticality Search

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Abstract Table of Contents:

NAME | COMPUTER | PROBLEM | SOLUTION | RESTRICTIONS | CPU | FEATURES | AUXILIARIES | STATUS | REFERENCES | REQUIREMENTS | LANGUAGE | OPERATING SYSTEM | OTHER RESTRICTIONS | AUTHOR | MATERIAL | CATEGORIES |

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1. NAME OR DESIGNATION OF PROGRAM - EXPANDA-70.


2. COMPUTER FOR WHICH PROGRAM IS DESIGNED AND OTHER MACHINE VERSION PACKAGES AVAILABLE -

To request or retrieve programs click on the one of the active versions below. A password and special authorization is required.

Explanation of the status codes.

Program-name         Package-ID  Status
EXPANDA-70           NEA-0315/01 Tested

Machines used:
Package-ID     Orig.Computer                       Test Computer
NEA-0315/01    IBM 360 series                      IBM 360 series

3. NATURE OF PHYSICAL PROBLEM SOLVED - EXPANDA-70 is a one-dimensional, real or adjoint solution for a slab, cylinder or sphere, and at the same time a dimensional critical search may be made, if requested.
In the numerical solution, the methods are the same as EXPANDA-4. Therefore, EXPANDA-70 is an extension of EXPANDA-4.


4. METHOD OF SOLUTION - The central difference approximation is adopted for the differential coefficients. The three points difference equation is solved by the ordinary sets of two points recurrence formula.


5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM -


6. TYPICAL RUNNING TIME - About 5-7 minutes (in CPU time) for the typical case.


7. UNUSUAL FEATURES OF THE PROGRAM -


8. RELATED AND AUXILIARY PROGRAMS - JFUSER, LTFR-70, EXPANDA-4.


9. STATUS
NEA-0315/01: 01-DEC-1971 Tested at NEADB


10. REFERENCES  - 
NEA-0315/01:


11. MACHINE REQUIREMENTS - About 64 k words (in overlay structure) including I/O subroutines and buffers.
One magnetic tape unit for library data and six disk scratch units required.


12. PROGRAMMING LANGUAGE(S) USED -
NEA-0315/01: FORTRAN-IV 


13. OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED - FACOM-230/60 monitor system (monitor V).


14. ANY OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS -


15. NAME AND ESTABLISHMENT OF AUTHOR -
       Akira Hasegawa
       JAERI
       Tokai-mura, Naka-gun
       Ibaraki-ken, Japan


16. MATERIAL AVAILABLE -
NEA-0315/01:
NEA0315_01.001    INFORMATION                                         4 records
NEA0315_01.002    SOURCE PROGRAMME + OVERLAY + INPUT CARDS         1701 records
NEA0315_01.003    LTFR-70 SOURCE PROGRAMME + INPUT CARDS            408 records
NEA0315_01.004    PRINTED OUTPUT                                   9443 records


17. CATEGORIES  - 

- C.  Static Design Studies


Keywords: CYLINDERS, DIFFUSION, FAST REACTORS, NEUTRON FLUX, ONE-DIMENSIONAL, REACTION KINETICS, SLABS, SPHERES

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