Abstract
An arc-heated plasma wind tunnel with power of 0.4MW has been constructed at Chonbuk National University (CBNU) in Korea. A segmented arc plasma torch was adopted as the plasma source and was designed to produce a supersonic plasma flow with enthalpy greater than 270kJ/mol at a velocity of Mach 3. The characteristics of the plasma flow were investigated for gas flow rates ranging from 5×105 to 8×105sccm and input current ranging from 200 to 350A. The facility is capable of producing ion flux greater than 1024m−2s−1, as well as heat flux greater than 10MW/m2, levels that are relevant for the study of plasma material interactions under fusion reactor conditions.
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