2018 Volume 102 Issue 6 Pages 220-225
In this study, a unified numerical simulation model was developed. A sub model of radiative heat transfer and tungsten evaporation, including transportation and adhesion, was added to an electromagnetic and thermal fluid numerical simulation model of a xenon short arc lamp. Then, the process of blackening by tungsten vapor was studied. When the temperature of the anode is around melting point, the heat loss of the evaporation against the input power is small. It is clear that there is almost no thermal influence on the anode. In addition, the flux of vapor deposition in this numerical simulation is high, then the blackening of the lamp was confirmed. Furthermore, the process of blackening by tungsten vapor was also confirmed. This numerical simulation model is shown to be useful for the examination of arc flow control and blackening.
