NESC0435 BURST1

BURST-1, Rupture of 1-D Cylindrical Pressurized Liquid System, Hydrodynamic Calculation

NAME OR DESIGNATION OF PROGRAM, COMPUTER, DESCRIPTION OF PROBLEM OR FUNCTION, METHOD OF SOLUTION, RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM, TYPICAL RUNNING TIME, UNUSUAL FEATURES OF THE PROGRAM, RELATED AND AUXILIARY PROGRAMS, STATUS, REFERENCES, MACHINE REQUIREMENTS, LANGUAGE, OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED, OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS, NAME AND ESTABLISHMENT OF AUTHORS, MATERIAL, CATEGORIES

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1. NAME OR DESIGNATION OF PROGRAM: BURST1

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2. COMPUTERS

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Program name	Package id	Status	Status date
BURST-1	NESC0435/01	Tested	01-FEB-1972

Machines used:

Package ID	Orig. computer	Test computer
NESC0435/01	IBM 360 series	IBM 360 series

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3. DESCRIPTION OF PROBLEM OR FUNCTION

BURST1 provides for the study
of pressurized liquid in a  cylindrical system immediately after a
rupture occurs at one or both  ends of the system.  Pressure, mass
velocity,  and  enthalpy  are calculated  at  equally-spaced  mesh
points along the length of the  system.  This is a one-dimensional
representation, assuming  uniform conditions throughout  any given
cross-sectional area.  Forces on designated sections of the system
can also be computed, with provision for directional changes.

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4. METHOD OF SOLUTION

Partial time  derivatives for  mass velocity,
pressure, and enthalpy, obtained from  the three conservation laws
for mass, momentum,  and energy, are approximated  with difference
equations.

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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

Maxima of -
     50 total cylinders and adapters
   2000 space-steps in the whole system
   5000 time-steps
Only subcooled, frictionless, adiabatic cases can be considered.

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6. TYPICAL RUNNING TIME:

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7. UNUSUAL FEATURES OF THE PROGRAM:

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8. RELATED AND AUXILIARY PROGRAMS

The BLOT deck is used to plot
data stored by BURST1.

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9. STATUS

Package ID	Status date	Status
NESC0435/01	01-FEB-1972	Tested at NEADB

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10. REFERENCES

- Gerald A. Jayne:
BURST 1 Program Description (P00410)
(December 1967).

NESC0435/01, included references:

- Ronald P. Rose, George H. Hanson, and Gerald A. Jayne:
  Hydrodynamics Describing Acoustic Phenomena during Reactor Coolant
  System Blowdown
  IDO-17254 (July 1967).

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11. MACHINE REQUIREMENTS: 32K memory

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12. PROGRAMMING LANGUAGE(S) USED

Package ID	Computer language
NESC0435/01	FORTRAN-IV

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

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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:

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15. NAME AND ESTABLISHMENT OF AUTHORS

                 G. A. Jayne and G. H. Hanson
                 Idaho Nuclear Corporation
                 P. O. Box 1845
                 Idaho Falls, Idaho  83401
                 R. P. Rose
                 Westinghouse Astronuclear Laboratory
                 Westinghouse Electric Corporation
                 Box 10864
                 Pittsburgh, Pennsylvania  15236

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16. MATERIAL AVAILABLE

NESC0435/01

File name	File description	Records
NESC0435_01.001	SOURCE PROGRAM + DATA FOR A SAMPLE CASE	621
NESC0435_01.002	OUTPUT PRINT	382

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17. CATEGORIES

G. Radiological Safety, Hazard and Accident Analysis

Keywords: blowdown, coolants, cylinders, enthalpy, hydrodynamics, one-dimensional, pressure.