Calculation method of radiation heat flux field for quartz lamp array for the constant diameter cabins of missile

A rapid calculation method was proposed for the heat flux field of the cylindrical quartz lamp array for the ground thermal test of the constant diameter cabin of missile under multi-elements mesh for the semi-cylinder of the filament. The irradiation criteria of each lamp in the outer and inner heating array were also present, which contributed to the change trend of the irradiation range along with the order of element. The effect of the different number of elements on the distribution of heat flux was discussed. Then the model for heating of cabin with single lamp was established. It shows the good consistency between the calculated results of heat flux by using the finite element software and the analytic method. So the validity of the analytical method was verified, which could effectively support the rapid update of the thermal test design for the cabins of missile with constant diameter.