NESC0651 SOLA/SOLA-SURF.

1. NAME OR DESIGNATION OF PROGRAM:  SOLA/SOLA-SURF.

3. DESCRIPTION OF PROBLEM OR FUNCTION

SOLA and SOLA-SURF are numerical solution algorithms for transient fluid flows. SOLA is for incompressible fluid flows without free surfaces. SOLA-SURF, an extension of the SOLA code, permits a free surface or curved rigid boundary (free-slip) to be located across the top or bottom of the fluid region.

4. METHOD OF SOLUTION

SOLA  uses a finite difference technique, based on the marker-and-cell (MAC) method,  to solve the Navier-Stokes equations  for an incompressible fluid in two-dimensional plane or axisymmetric coordinates. Boundaries of the rectangular computing region can  be chosen as (1) rigid  walls with free-slip or no-slip tangential velocities, (2) specified inflow or outflow boundaries, (3) continuative outflow boundaries, or (4) periodic boundaries. Internal walls and obstacles or sources and sinks can be added by inserting additional  boundary conditions in a special section of the code reserved for this purpose.

5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

The surfaces used in SOLA-SURF must be definable by single-valued functions, for example, y=h(x,t) for the top surface and y=hb(x,t) for the bottom surface. Also, the slope of the surface must not exceed the cell aspect ratio, deltay/deltax.

6. TYPICAL RUNNING TIME

The  SOLA-SURF test problem  required 15 seconds of CP time on the CDC7600 to run to a problem time of 10 (50 cycles).

The test case took about 16 hours on our PC.

7. UNUSUAL FEATURES OF THE PROGRAM

The  basic solution algorithm contained in the SOLA code can serve as a foundation for developing other codes. For example, a scalar transport equation for density (or temperature) can be added to investigate buoyancy- driven flows and flows of stratified fluids.

8. RELATED OR AUXILIARY PROGRAMS: RELATED AND AUXILIARY PROGRAMS

10. REFERENCES

C.W. Hirt, B.D. Nichols, and N.C. Romero
       SOLA- A Numerical Solution Algorithm for Transient Fluid Flows
       LA-5852, April 1975, and Addendum, December 1975, Revised March 1977.

- C.W. Hirt, B.D. Nichols, and N.C. Romero:
  SOLA- A Numerical Solution Algorithm for Transient Fluid Flows
  LA-5852, UC-34 and UC-79d (April 1975).
- B.D. Nichols:
  SOLA-SURF Sample Test Problem
  Addendum to LA-5852 (December 18, 1975)
- SOLA/SOLA-SURF, NESC No. 651, Description of DGA Plotting Routine
  NESC Note 79-66 (August 27, 1979).
- C.W. Hirt, B.D. Nichols, and N.C. Romero:
  SOLA - A Numerical Solution Algorithm for Transient Fluid Flows
  LA-5852, UC-34 and UC-79d (April 1975).
- B.D. Nichols:
  SOLA-SURF Sample Test Problem; Addendum to LA-5852 (Dec. 18, 1975)
- SOLA/SOLA-SURF, NESC 651, Description of DGA Plotting Routine
  NESC Note 79-66 (August 27, 1979).
- C.W. Hirt, B.D. Nichols, and N.C. Romero:
  SOLA - A Numerical Solution Algorithm for Transient Fluid Flows
  LA-5852, UC-34 and UC-79d (April 1975).
- B.D. Nichols:
  SOLA-SURF Sample Test Problem; Addendum to LA-5852 (Dec. 18, 1975)
- SOLA/SOLA-SURF, NESC 651, Description of DGA Plotting Routine
  NESC Note 79-66 (August 27, 1979).
- C.W. Hirt, B.D. Nichols, and N.C. Romero:
  SOLA- A Numerical Solution Algorithm for Transient Fluid Flows
  LA-5852, UC-34 and UC-79d (April 1975).
- B.D. Nichols:
  SOLA-SURF Sample Test Problem
  Addendum to LA-5852 (December 18, 1975)
- SOLA/SOLA-SURF, NESC No. 651, Description of DGA Plotting Routine
  NESC Note 79-66 (August 27, 1979).

11. HARDWARE REQUIREMENTS: MACHINE REQUIREMENTS

13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED:   SCOPE.

14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS

  SOLA and SOLA-SURF call a number of LASL subroutines - DATE1, CLOCK1, and several film output routines. These will have to be replaced by the user for his environment.

15. NAME AND ESTABLISHMENT OF AUTHORS

                 C. W. Hirt, B. D. Nichols, and N. C. Romero
                 Los Alamos Scientific Laboratory
                 P. O. Box 1663
                 Los Alamos, New Mexico U.S.A. 87544

                Dr. Fabrice PELESTOR
                Ministere de la Defense DGA
                DCN - CTSN/MDTC
                B.P. 28
                83800 TOULON NAVAL
                FRANCE

SOLA_PC.FOR SOLA-VOF source file
DONNEES.NS Input file

File name	File description	Records
NESC0651_01.001	SOLA SOURCE - FORTRAN IV EBCDIC	330
NESC0651_01.002	SOLA SAMPLE PROBLEM INPUT	8
NESC0651_01.003	SOLA SAMPLE PROBLEM OUTPUT	4773
NESC0651_01.004	SOLA/SURF SOURCE - FORTRAN IV EBCDIC	582
NESC0651_01.005	SOLA/SURF SAMPLE PROBLEM INPUT	9
NESC0651_01.006	SOLA/SURF SAMPLE PROBLEM OUTPUT	9518
NESC0651_01.007	'SYSTEM' SUBROUTINE	29
NESC0651_01.008	JOB CONTROL AND INFORMATION	27

File name	File description	Records
NESC0651_02.001	INFORMATION	3
NESC0651_02.002	SOLA - SOURCE PROGRAM (F4)	317
NESC0651_02.003	SOLA - SAMPLE PROBLEM INPUT DATA	8
NESC0651_02.004	SOLA - SAMPLE PROBLEM PRINTED OUTPUT	4773
NESC0651_02.005	SOLA-SURF - SOURCE PROGRAM (F4)	564
NESC0651_02.006	SOLA-SURF - SAMPLE PROBLEM INPUT DATA	9
NESC0651_02.007	SOLA-SURF - SAMPLE PROBLEM PRINTED OUTPUT	9518

File name	File description	Records
NESC0651_03.001	Information file	33
NESC0651_03.002	SOLA-SURF source program (FORTRAN)	941
NESC0651_03.003	SOLA-SURF test case input data	8
NESC0651_03.004	SOLA-SURF test case1 input data	9
NESC0651_03.005	SOLA-SURF test case printed output	4773
NESC0651_03.006	SOLA-SURF test case1 printed output	2263