Mathematical simulation of transient processes in a circular channel with granular layer under conditions of subcooled water boiling. Heating of the wall region

Results are given of a mathematical investigation of the process of heating the wall region of subcooled liquid under conditions of pulsed heat release in the heater wall. Analysis is made of the effect of the thermophysical properties of pebble bed on the temperature distribution and on the time of heating the wall region. The effect of the pebble bed on the thickness of superheated layer is estimated.