NEA-0154 JPHYDRO.

JPHYDRO, Voids and Flow Velocity in Steady-State BWR System

NAME OR DESIGNATION OF PROGRAM, COMPUTER, NATURE OF PHYSICAL PROBLEM SOLVED, METHOD OF SOLUTION, RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM, TYPICAL RUNNING TIME, UNUSUAL FEATURES OF THE PROGRAM, 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: JP-HYDRO.

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2. COMPUTERS

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Program name	Package id	Status	Status date
JPHYDRO	NEA-0154/01	Tested	01-MAR-1967

Machines used:

Package ID	Orig. computer	Test computer
NEA-0154/01	IBM 360 series	IBM 360 series

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3. NATURE OF PHYSICAL PROBLEM SOLVED

Calculates distributions of voids and flow velocities in the natural or forced circulation systems of a BWR type reactor in steady state.

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4. METHOD OF SOLUTION

In formulating the various types of pressure losses the method described in ANL-6063 is used, while the model proposed by G.W. Maurer is employed in considering the process of void formation.

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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

maximum number of fuel assemblies 15
maximum number of mesh points 51

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6. TYPICAL RUNNING TIME: Less than 1 min.

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7. UNUSUAL FEATURES OF THE PROGRAM

In the case of forced circulation, flux or pressure option can be used.

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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-0154/01	01-MAR-1967	Tested at NEADB

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10. REFERENCES: - JAERI-1108 (in Japanese).

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11. MACHINE REQUIREMENTS: 32k core storage.

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12. PROGRAMMING LANGUAGE(S) USED

Package ID	Computer language
NEA-0154/01	FORTRAN-IV

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13. OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED: IBSYS (IBM 7090).
IBM 360 Operating System.

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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.Moriguchi, A.Kosaka, Y.Kuge and T. Kobori
          JAERI
          Tokai, Ibaraki
          JAPAN

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16. MATERIAL AVAILABLE

NEA-0154/01

File name	File description	Records
NEA0154_01.001	SOURCE & DATA 360/65	1801
NEA0154_01.002	OUTPUT	1484

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17. CATEGORIES

H. Heat Transfer and Fluid Flow

Keywords: BWR reactors, coolants, flow rate, pressure gradients, steady-state conditions.