Correlation of high-pressure arc heater results

摘要: A method is introduced to correlate data from high-pressure arc heaters. It suited for those heaters which have losses dominated by radiation. The correlation valid both laminar and turbulent flows. Turbulence postulated effect only the thermal conduction, not electrical conduction or introduction of azimuthal velocity (i.e., swirl) flow can stabilize at center. An axial decay swirl will result in loss stability secondary scaling parameters also been applied vortex stabilized arcs. introduced, using developed parameters. Nomenclature Bz = magnetic field D diameter E electric jPi inlet length parameter F% voltage F3 power / parametric variable used theory H channel width /iav average enthalpy heater current j density L m mass rate constrictor Nu Nusselt number P — IV -Peons walls (p/pa) pressure atmospheres (gw)^ wall heat flux due radiation (PConsW irDL