Journal
Scientific and technical journal «Priborostroenie»
UDK53.072; 53:004
Issue:8 (62)
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NUMERICAL MODELING OF NATURAL CONVECTION OF LIQUID DEUTERIUM UNDER CONDITIONS OF A REACTOR HEAT LOAD
Annotation
In St. Petersburg Nuclear Physics Institute, on the basis of the WWR-M reactor, a high-flux source of ultracold neutrons is created with liquid deuterium as a pre-moderator of reactor neutrons. Results of calcu-lations of liquid deuterium convective flow in the source's deuterium capsule are presented depending on the heat flux and boundary conditions. The structure of the flow, temperature field, and velocity of liquid deuterium in the source of ultracold neutrons are numerically studied. The possibility of providing the thermal regime of a deuterium chamber with a heat flux power of up to 850 watts is proven. The dependence of the flow structure on the boundary conditions is analyzed. The influence of this dependence on the velocity field and heat flux is revealed.
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