Measurement of transient burning rates of composite propellants in fast depressurization

Junye Wang, Bingcheng Sang

Research output: Contribution to journalJournal Articlepeer-review

2 Citations (Scopus)


A continuous laser beam is transmitted through the burning surface of a propellant strand and converted in to voltage signal by photocell. The voltage differentiation with respect to time is proportional to the burning rate of the propellant strand. The experimental results show that the burning rate at the start of depressurization remains unchanged, and then decreased with very low frequency oscillation. During the whole depressurization process the transient burning rate is not higher than the quasi-steady burning rate at the corresponding pressure and oscillates around quasi-steady burning rate, except for a short time after the start of the depressurization.

Original languageEnglish
Pages (from-to)173-175
Number of pages3
JournalHangkong Dongli Xuebao/Journal of Aerospace Power
Issue number2
Publication statusPublished - Apr. 1990


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