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NEA-0185 LOOP-3.

LOOP-3, Hydraulic Stability in Heated Parallel Channels

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, RELATED AND AUXILIARY PROGRAMS, STATUS, REFERENCES, MACHINE REQUIREMENTS, LANGUAGE, OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED, ANY OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS, NAME AND ESTABLISHMENT OF AUTHOR, MATERIAL, CATEGORIES
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1. NAME OR DESIGNATION OF PROGRAM:  LOOP-3.
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2. COMPUTERS
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Program name Package id Status Status date
LOOP-3 NEA-0185/01 Tested 01-FEB-1968
LOOP-3 NEA-0185/02 Tested 01-FEB-1968

Machines used:

Package ID Orig. computer Test computer
NEA-0185/01 CDC 6600 CDC 6600
NEA-0185/02 IBM 360 series IBM 360 series
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3. NATURE OF PHYSICAL PROBLEM SOLVED:  Hydraulic stability in parallel channels.
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4. METHOD OF SOLUTION

Calculation of transfer functions developed in reference (10 below).
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM:  Only due to assumptions in analysis (see ref.).
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6. TYPICAL RUNNING TIME:  Less than 1 sec. per complex frequency.
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7. UNUSUAL FEATURES: UNUSUAL FEATURES OF THE PROGRAM
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8. RELATED AND AUXILIARY PROGRAMS

LOOP-5 - identical programme for the English Electric KDF9.
LOOP-10 B - improved version for the KDF9 under development.
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9. STATUS
Package ID Status date Status
NEA-0185/01 01-FEB-1968 Tested at NEADB
NEA-0185/02 01-FEB-1968 Tested at NEADB
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10. REFERENCES
NEA-0185/01, included references:
- A.L. Davies, R. Potter:
Hydraulic Stability, an Analysis of the Causes of Unstable
Flow in Parallel Channels
AEEW-R446 (April 1966).
NEA-0185/02, included references:
- A.L. Davies, R. Potter:
Hydraulic Stability, an Analysis of the Causes of Unstable
Flow in Parallel Channels
AEEW-R446 (April 1966).
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11. MACHINE REQUIREMENTS

Standard input (2) and output (3) tapes. No other tapes required.
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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
NEA-0185/01 FORTRAN-II (IBM)
NEA-0185/02 FORTRAN-IV
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13. OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED:  FORTRAN II monitor.
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14. ANY OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:  Input and output described in appendix 3 of reference.
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15. NAME AND ESTABLISHMENT OF AUTHOR

A.L. Davies
                                   AEEW
                                   Dorset
                                   England
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16. MATERIAL AVAILABLE
NEA-0185/01
File name File description Records
NEA0185_01.001 INFORMATION 2
NEA0185_01.002 SOURCE&DATA CDC 6600 303
NEA0185_01.003 OUTPUT 435
NEA-0185/02
File name File description Records
NEA0185_02.001 SOURCE & DATA 312
NEA0185_02.002 OUTPUT 435
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17. CATEGORIES
  • H. Heat Transfer and Fluid Flow

Keywords: flow rate, hydraulics.