含能液滴在高温下特征行为的研究

A STUDY ON CHARACTERISTIC BEHAVIOR OF ENERGETIC DROPLETS IN HOT ENVIRONMENTS

含能液滴在高温下特征行为的研究余永刚，金志明（南京理工大学动力工程学院南京２１００９４）关键词液体推进剂，液滴燃烧，微爆１前言“目前，超高速推进技术的研究在一些工业发达国家已形成热点。相应的各种高能推进剂不断被研制成功，其中ＨＡＮ基系列液体推进剂山就...

On the basis of reserch work by Law C.K. from Princeton University and Beyer R.A. from ABRL, the characteristic behavior of HAN-based liquid propellant LP1846 droplet was studied in hot environments using a high speed camera and ultraviolet light oscillograph. Time series photographs of the droplet from heating to combustion end were obtained. Observations show that there exist phenomena of periodic expansion and contraction and microexplosion for LP1846 drops in a range of 120 ￣ 160℃. The mechanisms of characteristic behavior for the droplet were discussed. Several characteristic parameters of ignition and combustion were also measured quantitatively. The results are of interest and important forimprovement of regenerative liquid propellant gun performances.