NEA-0506 WAKE.

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

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, 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: WAKE.

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2. COMPUTERS

To submit a request, click below on the link of the version you wish to order. Only liaison officers are authorised to submit online requests. Rules for requesters are available here.

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.