Numerical Calculus of Propagation Features of Neutron-Temperature Oscillations in Controlled Nuclear Systems
Abstract
The developed theoretical model and experimental measurements on reactors VVER-1000 of the Zaporozhye NPP neutron of noise depending on frequency testify about intensive density oscillations of thermal neutrons in neutron multiplying systems with the coolant. Amplitudes of signals considerably decrease with frequency growth. At its small values (from shares of unit to several tens in Hz) amplitudes of fluctuations are subject to the strengthening, the obliged convective carrying over of neutrons by the coolant. The numerical analysis of the dispersive equation in the conditions of various types connections of oscillations is carried out. The numerical analysis verifies analytical results about a dispersion and strengthening (recession) of eigen neutron and temperature waves in approach of their weak interaction. Obtained data on conditions of propagation of strongly connected neutron and temperature fluctuations reflect nuclear-physical kinetic of neutron multiplying system together with a coolant hydrodynamics.
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References
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