Experimental simulation of heat transfer in an HF-plasmatron with lengthened segmented discharge channel |
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Authors: | A N Gordeev A F Kolesnikov |
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Institution: | (1) Department of Mechanical Engineering, Karadeniz Technical University, 61080 Trabzon, Turkey |
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Abstract: | Subsonic and supersonic air induction plasma flows in a VGU-4 100 kW plasmatron with segmented water-cooled cylindrical nozzle
with the outlet cross-section 40 mm in diameter are investigated experimentally. The enthalpy on the axis of flow is measured
in subsonic air jets. The heat fluxes are measured at the stagnation flow point on a cylindrical water-cooled model 50 mm
in diameter located in subsonic air and nitrogen jets. The effect of the generator power, nozzle length, and pressure in the
plasmatron pressure chamber on the distributions of the heat flux and the pressure at the stagnation point on the surface
of cylindrical models 20 mm in diameter with a plane and hemispheric nose is investigated along the axis of underexpanded
dissociated air jets. |
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