Published 1983 | Version v1
Report Restricted

Some theoretical and computational aspects of a simplified subchannel model

Creators

Description

Some recently obtained results are presented concerning the qualitative behavior of solutions to equations governing a simplified subchannel model for reactor hydrodynamics. The model describes time-independent flow of an incompressible fluid in two parallel, interconnected channels, subject to axial and lateral pressure drops defined by a Darcy friction factor. The phase portrait for the system of ordinary differential equations is presented, a solution to a boundary-value problem describing flow blockage is discussed, and the effect of the qualitative behavior of solutions on their numerical approximation is examined. The study was undertaken to determine the cause of numerical difficulty in approximating solutions to problems

Availability note (English)

MF available from INIS under the Report Number; Available from NTIS, PC A02/MF A01 as DE83010402.

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Additional details

Publishing Information

Imprint Pagination
7 p.
Report number
EGG-M--29482

Conference

Title
American Nuclear Society topical conference on computational methods.
Dates
28-31 Mar 1983.
Place
Salt Lake City, UT (USA).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
14779926
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
FUEL CHANNELS; HEAT TRANSFER; HYDRAULICS; HYDRODYNAMICS; MATHEMATICAL MODELS; POWER REACTORS; REACTOR CORES
Descriptors DEC
ENERGY TRANSFER; FLUID MECHANICS; MECHANICS; REACTOR CHANNELS; REACTOR COMPONENTS; REACTORS

Optional Information

Secondary number(s)
CONF-830304--20.