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NEA-0506 WAKE.

WAKE, Navier Stokes Equation with 2-D Turbulence, Stream Function, Vorticity

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1. NAME OR DESIGNATION OF PROGRAM:  WAKE.
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2. COMPUTERS
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Program name Package id Status Status date
WAKE NEA-0506/01 Tested 01-DEC-1977

Machines used:

Package ID Orig. computer Test computer
NEA-0506/01 IBM 370 series IBM 370 series
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3. NATURE OF PHYSICAL PROBLEM SOLVED

WAKE solves the turbulent Navier  Stokes equations using a two equations model of turbulence (kinetic  energy and dissipation rate) and stream function, vorticity representation of the mean flow pattern.
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4. METHOD OF SOLUTION

Finite difference solution of flux equation in an orthogonal mesh specified by the user.
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

Model size is defined by array sizes set in FORTRAN routines.
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6. TYPICAL RUNNING TIME

Problem set up at present is of the order of 15 minutes CPU time.
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7. UNUSUAL FEATURES OF THE PROGRAM

Much of input is specified by coding in various subroutines - a detailed knowledge of the function and operation of each subroutine is necessary before the user can confidently set up his/her own problem.
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8. RELATED AND AUXILIARY PROGRAMS

WAKE is based on the code PISTEP II  written by Imperial College Staff.
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9. STATUS
Package ID Status date Status
NEA-0506/01 01-DEC-1977 Tested at NEADB
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10. REFERENCES

- C.V. Gregory and D.J. Lord:
  The Study of Local Blockages in Fast Reactor Subassemblies
  Journal of British Nucl. Energy Society 1974, 13(3) pp 251 - 260.
- C.V. Gregory and D.J. Lord:
  Effect of Permeability on the Consequences of Local Blockages of
  Fast Reactor Subassemblies
  Journal of British Nuclear Energy Society 1976, 15 January no 1, 54-60.
NEA-0506/01, included references:
- B.S. Dunn:
  WAKE User's Guide (14.10.77).
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11. MACHINE REQUIREMENTS

More than 200 k bytes of fast core, card reader, line printer, and if restart and dump facility used two magnetic tape units. Code uses clock facilities to prevent over-running allocated time.
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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
NEA-0506/01 FORTRAN+ASSEMBLER
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13. OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED:  ICL RIOS, IBM OS 370/OS.
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14. ANY OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS

Programme construction involves overlay features to reduce storage requirements.
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15. NAME AND ESTABLISHMENT OF AUTHOR:     C.V. Gregory/D.J. Lord, DNPDE
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16. MATERIAL AVAILABLE
NEA-0506/01
File name File description Records
NEA0506_01.002 SOURCE PROGRAM - F4 - EBCDIC 1011
NEA0506_01.003 SUBROUTINE DEBUG - F4 - EBCDIC 5
NEA0506_01.004 JCL 2
NEA0506_01.005 SAMPLE PROBLEM INPUT DATA 16
NEA0506_01.006 SAMPLE PROBLEM PRINTED OUTPUT 2201
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17. CATEGORIES
  • F. Space - Time Kinetics, Coupled Neutronics - Hydrodynamics - Thermodynamics
  • H. Heat Transfer and Fluid Flow

Keywords: Navier-Stokes equation, fast reactors, finite difference method, hydraulics, reactor safety, turbulence, vortex flow.