NEA-1416 D3D/D3E.
D3D/D3E, 2-D, 3-D MultiGroup Neutron Diffusion in Rectangular, Cylindrical, Triangular-Z Geometry
NAME OR DESIGNATION OF PROGRAM, COMPUTER, DESCRIPTION OF PROGRAM OR FUNCTION, 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 UNDER WHICH PROGRAM IS EXECUTED, OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS, NAME AND ESTABLISHMENT OF AUTHORS, MATERIAL, CATEGORIES
[ top ]
[ top ]
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 |
|---|---|---|---|
| D3D/D3E | NEA-1416/01 | Tested | 13-JUN-1995 |
| D3D/D3E | NEA-1416/02 | Arrived | 09-OCT-2002 |
Machines used:
| Package ID | Orig. computer | Test computer |
|---|---|---|
| NEA-1416/01 | IBM (generic) | IBM (generic) |
[ top ]
3. DESCRIPTION OF PROGRAM OR FUNCTION
The two- and three-dimensional real and adjoint steady-state multigroup neutron diffusion equations are solved by approximating the differential equations by finite difference equations. The discrete grid is a mesh edged one, so that the neutron fluxes are calculated on surfaces separating zones to which different physical conditions apply. Different options allow to treat homogeneous, i.e. eigenvalue problems as well as inhomogeneous, i.e. external source driven problems in rectangular or cylindrical geometry (D3D) or triangular-Z geometry (D3E).
The two- and three-dimensional real and adjoint steady-state multigroup neutron diffusion equations are solved by approximating the differential equations by finite difference equations. The discrete grid is a mesh edged one, so that the neutron fluxes are calculated on surfaces separating zones to which different physical conditions apply. Different options allow to treat homogeneous, i.e. eigenvalue problems as well as inhomogeneous, i.e. external source driven problems in rectangular or cylindrical geometry (D3D) or triangular-Z geometry (D3E).
[ top ]
4. METHOD OF SOLUTION
The linear algebraic system of the difference equations is solved by the outer and inner iterations method. An outer iteration of the homogeneous problem is the power iteration with the fission source, whereas the outer iteration of the inhomogeneous problem is an iteration with the fission source. Within the process of an outer iteration the group fluxes are determined by inner iterations, either via block overrelaxation or a method of conjugate gradients.
The linear algebraic system of the difference equations is solved by the outer and inner iterations method. An outer iteration of the homogeneous problem is the power iteration with the fission source, whereas the outer iteration of the inhomogeneous problem is an iteration with the fission source. Within the process of an outer iteration the group fluxes are determined by inner iterations, either via block overrelaxation or a method of conjugate gradients.
[ top ]
[ top ]
6. TYPICAL RUNNING TIME
Three seconds central processing unit time (on a IBM 3090) should be accorded for every thousand space energy points of a fast breeder reactor.
Three seconds central processing unit time (on a IBM 3090) should be accorded for every thousand space energy points of a fast breeder reactor.
NEA-1416/01
NEA-DB ran the four sample problems included in this package on an IBM 6000/990 in about 2 minutes of CPU time.[ top ]
[ top ]
[ top ]
| Package ID | Status date | Status |
|---|---|---|
| NEA-1416/01 | 13-JUN-1995 | Tested at NEADB |
| NEA-1416/02 | 09-OCT-2002 | Arrived at NEADB |
[ top ]
NEA-1416/01, included references:
- B. Stehle:D3D and D3E: FORTRAN Programs to Solve the Stationary Three
Dimensional Multigroup Neutron Diffusion Equations in Rectangular,
Cylinder, and Triangular Geometries
KfK 4764 (April 1991), (in German)
NEA-1416/02, included references:
- B. Stehle:D3D and D3E Branches of a Fortran program for the Solution of the Stationary
Three-Dimensional Multigroup Neutron Diffusion Equations in Rectangular,
Cylindrical and Triangular Geometry
KFK 4764 (April 1991)
[ top ]
[ top ]
NEA-1416/01
NEA-DB installed the program under MVS 421. The source programs were compiled with the IBM Fortran compiler V2R5.[ top ]
[ top ]
[ top ]
NEA-1416/02
Source codesJCL
Documentation in PDF format
Sample problems input/output files
NEA-1416/01
| File name | File description | Records |
|---|---|---|
| NEA1416_01.001 | Information file | 290 |
| NEA1416_01.002 | Subprogram file #1 | 1892 |
| NEA1416_01.003 | Subprogram file #2 | 2936 |
| NEA1416_01.004 | Subprogram file #3 | 99 |
| NEA1416_01.005 | Subprogram file #4 | 3022 |
| NEA1416_01.006 | Subprogram file #5 | 2303 |
| NEA1416_01.007 | Subprogram file #6 | 3864 |
| NEA1416_01.008 | Subprogram file #7 | 1376 |
| NEA1416_01.009 | Subprogram file #8 | 2774 |
| NEA1416_01.010 | Subprogram file #9 | 1115 |
| NEA1416_01.011 | Subprogram file #10 | 1265 |
| NEA1416_01.012 | Subprogram file #11 | 777 |
| NEA1416_01.013 | Subprogram file #12 | 1414 |
| NEA1416_01.014 | Subprogram file #13 | 2509 |
| NEA1416_01.015 | Subprogram file #14 | 1082 |
| NEA1416_01.016 | Subprogram file #15 | 3237 |
| NEA1416_01.017 | Subprogram file #16 | 2427 |
| NEA1416_01.018 | Subprogram file #17 | 3662 |
| NEA1416_01.019 | Subprogram file #18 | 2584 |
| NEA1416_01.020 | Subprogram file #19 | 2388 |
| NEA1416_01.021 | Subprogram file #20 | 575 |
| NEA1416_01.022 | Subprogram file #21 | 1319 |
| NEA1416_01.023 | Subprogram file #22 | 1561 |
| NEA1416_01.024 | Subprogram file #23 | 1399 |
| NEA1416_01.025 | Subprogram file #24 | 2118 |
| NEA1416_01.026 | Subprogram file #25 | 1447 |
| NEA1416_01.027 | Subprogram file #26 | 122 |
| NEA1416_01.028 | Program file D3DOR | 137 |
| NEA1416_01.029 | Program file D3DCG | 137 |
| NEA1416_01.030 | Program file D3EOR | 137 |
| NEA1416_01.031 | Program file D3ECG | 137 |
| NEA1416_01.032 | JCL file to compile and link D3DOR program | 22 |
| NEA1416_01.033 | JCL file to compile and link D3DCG program | 23 |
| NEA1416_01.034 | JCL file to compile and link D3EOR program | 24 |
| NEA1416_01.035 | JCL file to compile and link D3ECG program | 25 |
| NEA1416_01.036 | JCL file to run the D3DOR program | 16 |
| NEA1416_01.037 | JCL file to run the D3DCG program | 17 |
| NEA1416_01.038 | JCL file to run the D3EOR program | 16 |
| NEA1416_01.039 | JCL file to run the D3ECG program | 16 |
| NEA1416_01.040 | Sample input for the D3DOR program | 154 |
| NEA1416_01.041 | Sample input for the D3DCG program | 154 |
| NEA1416_01.042 | Sample input for the D3EOR program | 135 |
| NEA1416_01.043 | Sample input for the D3ECG program | 135 |
| NEA1416_01.044 | Sample output for the D3DOR program | 1633 |
| NEA1416_01.045 | Sample output for the D3DCG program | 1627 |
| NEA1416_01.046 | Sample output for the D3EOR program | 1944 |
| NEA1416_01.047 | Sample output for the D3ECG program | 1477 |
Keywords: cylindrical, diffusion equations, finite difference method, homogeneous, inhomogeneous, rectangular, triangular-z.