Numerical Analysis for the Power of a Supersonic Flow CO Chemical Laser

抄録

A numerical analysis is presented for a CO chemical laser, which utilizes the supersonic mixing of dissociated products of CS₂ diluted in Ar with O₂. It is assumed that the flow is quasi-one-dimensional, and that nozzle flows undergo instantaneous mixing at nozzle exits. The constant gain method is applied to estimate the laser power. The present results show that the rate of formation of CO molecule is scarecely reduced by lasing, although the temperature rise in the reacting flow field is suppressed due to the conversion of chemical energy into laser energy. It is also shown that about 19.5 kW laser power can be extracted from a supersonic flow CO chemical laser, in which the cross-sectional area of the flow field is 50 mm × 450 mm.