An Investigation of discretization errors for mesh centered finite difference approximations to the transport equation using a spherical harmonic expansion of the flux

Fletcher, J. K.

PNC TN9410 97-065, 25 Pages, 1997/07

PNC-TN9410-97-065.pdf:0.75MB

None

Perturbation of general boundary condition for an eigenvalue change in the neutron Boltzmann transport equation

Yamamoto, Toshihiro

Nuclear Science and Engineering, 125(1), p.19 - 23, 1997/00

https://doi.org/10.13182/NSE97-A24251

no abstracts in English

Investigation on applicability of turbulence models to low reynolds number flows

JAE HO*;

PNC TN9410 91-196, 64 Pages, 1991/07

PNC-TN9410-91-196.pdf:1.6MB

There are many arguments on the empericalconstants of the turbulence models becausetheir ariginal values are selected on thebasis of the dimensional analysis.Especia-lly,the particular model form of the gene-ration -destruction terms in the transpo-rt equation for the turbulent kinetic ene-rgy dissipation rate has been treated asa source of the arguments.Having recogniz-ed the cause for sensitivities of calcula-tions on the relevant constants,this studycould be performed to evaluate the applic-ability of the turbulence models adoptedadopted in AQUA to relatively slow flowsthrough analyses of a typical thermal cav-ity problem and the 7th IAHR benchmark pr-oblem featuring many aspects of the pheno-mena predicted during the natural circula-tion decay heat removals in the FBR react-or vessel.Despite the level of handled tu-rbulence models,such as the standard &two-equation model and the algebraic stre-ss/flux model,the calculation results arefairly sensitive to the varitions of thepe

Improvement of coarse mesh difference diffusion scheme about control rods

Journal of Nuclear Science and Technology, 12(11), p.695 - 702, 1975/11

https://doi.org/10.3327/jnst.12.695

no abstracts in English

SLAROM; A Code for Calculation of a Heterogeneous Core in Fast Reactor

Nakagawa, Masayuki;

JAERI-M 5916, 32 Pages, 1974/12

JAERI-M-5916.pdf:0.86MB

no abstracts in English