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长期以来,小型发动机燃烧室设计主要采用经验和半经验设计方法,它由初步设计阶段和试验阶段组成.这种方法有一定的局限性,如:经验和半经验关系式只适用于一定的参数范围和一定的燃烧室形式.当燃烧室的设计思想、方案、结构形式与现有燃烧室有很大不同时,此方法不再适用.这种方法只能粗略地和单个地预估几种性能指标,不能预报各种状态下燃烧室内各参数场和全面性能,无法实现满足各种矛盾要求的最佳设计.按此方法设计的燃烧室起点低,发展中又纯粹靠经验,缺乏分析调试手段,因而盲目
For a long time, small engine combustion chamber design mainly uses experience and semi-empirical design method, which consists of the preliminary design phase and the experimental phase.This method has some limitations, such as: empirical and semi-empirical relationship is only applicable to certain parameters Range and a certain form of combustion chamber.This method is no longer applicable when the design concept, solution and structure of the combustion chamber are very different from the existing combustion chamber.This method can only be estimated roughly and singly Performance index can not predict the various parameters of the combustion chamber in various conditions and the overall performance of the field, can not achieve the best to meet the requirements of various contradictions.According to this method designed combustion chamber low starting point, the development of purely by experience, the lack of analysis and debugging Means, so blind