Geometry-independent approach to coarse-mesh neutron diffusion calculations

Conference · Sat Jun 01 04:00:00 EDT 1985

OSTI ID:5986798

Kohut, P

Powerful coarse-mesh and nodal methods have been recently developed to calculate accurate node-average fluxes and eigenvalues. The nodal methods solve for the node-average flux by reducing the multidimensional diffusion problem to a coupled system of 1-D equations. These schemes are mainly limited to rectangular (xyz) nodes and cannot easily be extended to other geometries. The polynomial-based coarse-mesh methods have been applied to thetaRZ and HEXZ geometries. This summary describes the development of a boundary coarse-mesh nodal method applicable to arbitrary geometries using the boundary integral technique coupled with nodal source expansion.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 5986798
• Report Number(s): BNL-NUREG-37002; CONF-851115-19; ON: TI86000028
• Country of Publication: United States
• Language: English

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