Numerical Calculation of the Temperature Field Distribution in a Cylindrical Fuel Element, Taking Into Account the Eccentricity of the Fuel Pellet and the Variable Thermophysical Characteristics of the Materials

Fuel elements are the most critical elements of the core of a nuclear reactor. In the general case, a fuel rod consists of an airtight cladding, inside of which nuclear fuel pellet is placed. The fuel rod cladding provides the required mechanical strength to the structure and protects the fuel from the corrosive and erosive influence of the coolant on it.