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Study of successive-burning characteristics of porous combustible soaked in liquid oxidizer

机译：Study of successive-burning characteristics of porous combustible soaked in liquid oxidizer

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摘要

In this study, we experimentally investigate the successive-burning characteristics of a porous combustiblesoaked in a liquid oxidizer. Polyethylene foam soaked in hydrogen peroxide is packed in a verticallyoriented quartz tube that is considered as a tested combustor in this work. Following forced ignitionat the top surface, a successive (steady) burning process occurs. The location of the burning surfaceis carefully tracked to confirm the successive-burning process. A simple one-dimensional burning modelis then developed based on the steady assumption, and the thermal structure and the regression rateunder various prescribed conditions are predicted. Separately considering the estimated blow-off limit inthe gas-phase by CHEMKIN (PREMIX-code), the range needed to achieve the successive burning is predicted,and its effects on the oxidizer type (hydrogen peroxide and liquid oxygen), fuel properties (e.g.fuel porosity), and operating pressure are discussed. Findings show that the successive burning is widelyachievable when hydrogen peroxide is used as the oxidizer, but it is only partially achievable when liquidoxygen is utilized. This fact may support the behavior observed in the past experiment made by Nagataet al. (1997).

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