Experimental investigation of transient injection phenomena with flash evaporation in rocket combustors at vacuum conditions (B04)

真空条件下火箭燃烧室闪蒸瞬态喷射现象的实验研究（B04）

• 批准号: 251391788
• 金额: --
• 依托单位: Institut für Raumfahrtantriebe
• 依托单位国家: 德国
• 项目类别: CRC/Transregios
• 财政年份: 2014
• 资助国家: 德国
• 起止时间: 2013-12-31 至 2020-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/251391788?language=en
• 关键词: Experimental; investigation; transient; injection; phenomena

When igniting cryogenic upper stage rocket engines or reaction and control system engines under vacuum conditions propellants are injected in a superheated state into the combustor. Under these conditions the propellants evaporate violently, which is referred to a flash evaporation. In the project B4 the parameters controlling the flash evaporation of liquid oxygen are analysed in a detailed experimental investigation. The results can be used to develop and verify models for the description of the transient start-up of rocket combustion chambers that are operated with cryogenic fuels.

当在真空条件下点燃低温火箭发动机或反应和控制系统发动机时，推进剂以过热状态注入燃烧室。在这种条件下，推进剂猛烈地蒸发，这被称为闪蒸。在B4项目中，对控制液氧闪蒸的参数进行了详细的实验研究。研究结果可用于建立和验证用低温燃料驱动的火箭燃烧室瞬态启动的描述模型。