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为探究基于时间推进的通流方法在叶轮机械设计分析中的应用潜力,报告了国内外相关研究现状,详细阐述了该方法在应用过程中的若干关键问题,包括:叶片堵塞的几何描述、叶片力的模拟、叶片前后缘间断问题的处理和激波的捕获等,并对不同模型进行了比较。总结可知,相比传统通流方法,该方法具有捕捉激波,适应堵塞,流场模拟更为精细以及计算扩展性良好等诸多优点,在先进航空发动机或燃气轮机的部件设计和分析、整机稳态、过渡态性能模拟中,都具有相当的优势与应用潜力;同时尽管该方法的研究取得了很大进展,但在上述若干关键问题上仍有提高空间。通过进一步的发展与完善,该方法有望成为叶轮机械设计和分析的标准工具。
In order to explore the application potential of flow-through method in impeller mechanical design and analysis based on time advancement, the current research status at home and abroad is reported. Some key problems in the application of this method are expounded in detail, including the geometric description of plugging, The simulation of the force, the treatment of the discontinuity of the front and the back edge of the blade, the capture of the shock wave, etc., and compared the different models. It can be concluded that compared with the traditional flow-through method, the method has the advantages of capturing shock waves, adapting to plugging, finer flow field simulation and good computing expansibility. In the design and analysis of components of advanced aeroengines or gas turbines, State and transition state performance simulation have considerable advantages and potential applications; at the same time, despite the great progress made in the study of this method, there is still room for improvement on some of the above key issues. Through further development and improvement, this method is expected to become a standard tool for the design and analysis of impeller machinery.