NEA-0229 DCXE.

DCXE, Time-Dependent Xe Diffusion in Non-Multiplying Slab

NAME OR DESIGNATION OF PROGRAM, COMPUTER, NATURE OF PHYSICAL PROBLEM SOLVED, METHOD OF SOLUTION, RESTRICTIONS, TYPICAL RUNNING TIME, FEATURES, RELATED AND AUXILIARY PROGRAMS, STATUS, REFERENCES, REQUIREMENTS, LANGUAGE, OPERATING SYSTEM, OTHER RESTRICTIONS, NAME AND ESTABLISHMENT OF AUTHOR, MATERIAL, CATEGORIES

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1. NAME OR DESIGNATION OF PROGRAM: DCXE.

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2. COMPUTERS

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Program name	Package id	Status	Status date
DCXE	NEA-0229/01	Tested	01-JAN-1969

Machines used:

Package ID	Orig. computer	Test computer
NEA-0229/01	IBM 360 series	IBM 360 series

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3. NATURE OF PHYSICAL PROBLEM SOLVED

Programme DCXE was designed for the analysis of the diffusion phenomena of xenon in non-multiplying media (slab geometry) and solves the Fick's second diffusion equation with boundary conditions. Initial distribution of xenon in the media at time 0 and 0 value of distribution at both ends of media at any positive time.

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4. METHOD OF SOLUTION

Difference approximation is used to solve Fick's second diffusion equation. Strict stability condition is chosen between time and spatial intervals.

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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

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6. TYPICAL RUNNING TIME: 1 minute for the problem of 30 time mesh, 60 spatial mesh.

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7. UNUSUAL FEATURES: UNUSUAL FEATURES OF THE PROGRAM

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8. RELATED AND AUXILIARY PROGRAMS: INTPOL.

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9. STATUS

Package ID	Status date	Status
NEA-0229/01	01-JAN-1969	Tested at NEADB

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10. REFERENCES

NEA-0229/01, included references:

- K.Horikami, S.Kawasaki:
  DCXE - The Diffusion Program
  (November 1968).
- S.Kawasaki:
  The Diffusion of Xenon in Silver
  Journal of Nuclear Science and Technology, 4[5], pp. 239-243
  (May 1967).

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11. HARDWARE REQUIREMENTS: MACHINE REQUIREMENTS

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12. PROGRAMMING LANGUAGE(S) USED

Package ID	Computer language
NEA-0229/01	FORTRAN-IV

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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

        K. Horikami, S. Kawasaki
        Japan Atomic Energy Research Institute
        Tokai, Ibaraki
        Japan

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16. MATERIAL AVAILABLE

NEA-0229/01

File name	File description	Records
NEA0229_01.001	SOURCE & DATA 360/65	181
NEA0229_01.002	OUTPUT	76

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17. CATEGORIES

F. Space - Time Kinetics, Coupled Neutronics - Hydrodynamics - Thermodynamics
Q. Materials.

Keywords: diffusion equations, slabs, xenon.