IAEA0909 TOPIC-RUM. (Abstract last modified 09-MAY-1989)
1.
NAME OR DESIGNATION OF PROGRAM - TOPIC-RUM. 2.
COMPUTER FOR WHICH PROGRAM IS DESIGNED AND OTHER MACHINE VERSION PACKAGES AVAILABLE -
To request or retrieve programs click on the one of the active versions below.
A password and special authorization is required. Explanation of the status codes.
Machines used:
Package-ID Orig.Computer Test Computer
IAEA0909/01 CDC CYBER 720 CDC CYBER 830
3.
DESCRIPTION OF PROGRAM OR FUNCTION - In high temperature-low density tokamak plasmas, radiation cooling by impurity atoms can be an important energy loss mechanism, since radiation is not reabsorbed. The coupled set of time-dependent diffusion equations for ionized plasma impurities is solved in conjunction with a simple model for neutral impurities, on the assumption of a cylindrical symmetry. The resultant density distributions are used in the subsequent computation of the related energy losses.
4.
METHOD OF SOLUTION -The set of coupled second order equations, describing the diffusion of impurities in the MHD approach, is discretized using a finite difference scheme. The resultant linear system, with a three-diagonal block matrix structure, is then solved by a special forward elimination backward substitution technique.
5.
RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM - 6.
TYPICAL RUNNING TIME - About 6s for the test run output. 7.
UNUSUAL FEATURES OF THE PROGRAM - 8.
RELATED AND AUXILIARY PROGRAMS - STRIMP - impurity evolution in Tokamak fusion reactor discharge.
9.
STATUS 10.
REFERENCES - 11.
MACHINE REQUIREMENTS - High speed storage required : 0.7 Kwords for the test run. Peripherals used: card reader, line printer, magnetic disk.
12.
PROGRAMMING LANGUAGE(S) USED - 13.
OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED - NOS1P4 552/552. 14.
OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS - The number of words required by the arrays used in the program, NW, is used by the system subprograms SYMLIB, CNMALF and LOCF for dynamic memory allocation, relative to the starting adress of the array A dimensioned in the main program. On computers which do not have dynamic memory allocation facilities the sequence
15.
NAME AND ESTABLISHMENT OF AUTHORS - 16.
MATERIAL AVAILABLE - 17.
CATEGORIES - Keywords: DIFFUSION EQUATIONS, MAGNETOHYDRODYNAMICS, PLASMA, TOKAMAK REACTORS
Program-name Package-ID Status
TOPIC-RUM IAEA0909/01 Tested
IAEA0909/01:
NEA-DB ran the two test cases included in this package on a CDC CYBER 830 computer in less than 13 seconds of CPU time.
IAEA0909/01: 09-MAY-1989 Tested at NEADB
IAEA0909/01:
- T.A. Beu, F. Spineanu, M. Vlad, R.I. Campeanu and I.I. Popescu:
TOPIC - A Tokamak Plasma Impurities Code.
Reprint from "Computer Physics Communication", Vol. 36(2),
pp. 161-176 (April 1985)
- User's Guide of the TOPIC Program (Detailed Input Specification).
IAEA0909/01:
55,000 (octal) words of CDC CYBER 830 main storage.
IAEA0909/01: FORTRAN-IV
IAEA0909/01:
NOS2.5.1 (CDC CYBER 830).
CALL SYMLIB
CALL CMMALF (NW+1,0,0,IA)
LA=IA-LOCF (A(1))+1
should be replaced by
LA=1
while the array A should be dimensioned according to NW.
T.A. Beu, F. Spineanu, M. Vlad
Central Institute of Physics
Bucharest-Magurele, Romania
R.I. Campeanu
University of Cluj-Napoca
Department of physics
3400 Cluj-Napoca, Romania
I.I. Popescu
University of Bucharest
Department of Physics
Bucharest-Magurele, Romania
IAEA0909/01:
IAEA0909_01.001 Information file 46 records
IAEA0909_01.002 JCL and control information 11 records
IAEA0909_01.003 TOPIC-RUM source program 1128 records
IAEA0909_01.004 Sample case input 1 35 records
IAEA0909_01.005 Sample case input 2 44 records
IAEA0909_01.006 Sample output 443 records
- X. Magnetic Fusion Research
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