Thermal regime analysis of the shell of the powerful gas-discharge emitting source for structure thermal testing

The article describes the thermal regime analysis results of tubular shells made of leuco sapphire (artificial sapphire), which are used for producing water-cooled gas-discharge emitting sources. Such emitters are necessary, in particular, for improving an experimental gear used for technology groundwork of hypersonic aircrafts. The problem features the analysis of interconnections between the thermal regime of the gas-discharge emitting sources and their powers. The analysis faces a rather complicated dependence of thermal and optical properties of the leuco sapphire on both the length of the emitted wave and the temperature. The article also observes and categorizes the information acquired from both technical publications and electronic resources. The authors explain the main assumptions and formulate a mathematical model of the problem to be solved. It is shown that leuco sapphire tubes can be used for producing water-cooled gas-discharge emitting sources, which have a unit power (a power per a length unit of the discharge gap), which is 2-2.5 times as much as the present sources with the shells made of quartz glass.

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