extrapolated boundary

extrapolated boundary

[ik¦strap·ə‚lād·əd ′bau̇n·drē]
(nucleonics)
A hypothetical surface outside a medium sustaining a neutron chain reaction on which the neutron flux would be 0 if it could be extrapolated from the flux a few mean free paths inside the medium.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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The boundary conditions introduced in this research are: the neutron flux vanishes at the extrapolated boundary of the core (r = R and z = 0, H).
CRITICALITY CALCULATION OF A HOMOGENOUS CYLINDRICAL NUCLEAR REACTOR CORE USING FOUR-GROUP DIFFUSION EQUATIONS
The rest of conformal boundaries from inside to outside are connected boundary, extrapolated boundary, and PML boundary.
Implementation of an Approximate Conformal UPML in 2-D DGTD

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