SPHERICAL STANDING BURNING WAVE WITH EXTERNAL AUTOMATIC REACTIVITY CONTROL

Neutron kinetics of a nuclear burning wave in moving incompressible neutron-multiplying medium in the pres-ence of nuclear reactions is developed. A spherical reactor is considered, where fuel moves with acceleration to the center of the reactor at a velocity V(r)=VR(R/r)2, and the burning wave travels radially from the center to periphery. The fuel that came to the origin was unloaded from the reactor, and U-238 was loaded to the peripheral area at the same rate. Comparison of theoretical results with computer simulation using MCNPX code was performed.