An improved quasistatic option for the DIF3D nodal kinetics code

Conference · Mon Dec 31 23:00:00 EST 1990

OSTI ID:5944753

Taiwo, T A; Khalil, H S

An improved quasistatic scheme is formulated for solution of the time-dependent DIF3D nodal equations in hexagonal-z geometry. This scheme has been implemented, along with adiabatic and point kinetics solution options, in the DIF3D hexagonal-z nodal kinetics code. The improved quasistatic method is shown to permit significant reduction in computing time, even for transients involving pronounced changes in flux shape. The achievable computing time reduction, in addition to being problem dependent, has also been found to be larger when greater accuracy is required in the computed results.

• Research Organization: Argonne National Lab., IL (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5944753
• Report Number(s): ANL/CP-73636; CONF-920308--11; ON: DE92007376
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220100* -- Nuclear Reactor Technology-- Theory & Calculation
663610 -- Neutron Physics-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
COMPUTER CODES
D CODES
DIFFERENTIAL EQUATIONS
EQUATIONS
KINETIC EQUATIONS
MODIFICATIONS
NEUTRON DIFFUSION EQUATION
NODAL EXPANSION METHOD
TIME DEPENDENCE