水蒸气喷射泵数值模拟研究进展

Advances in the Study of the Numerical Simulation of Steam-jet Pumps

从热力学模型和动力学模型两方面对水蒸气喷射泵数值模拟研究进展情况进行了综述。通过综述发现:传统的热力学一维数值模拟研究由于存在大量假设,精确性受到限制,并且在泵内凝结、激波等复杂物理现象的详细研究方面显得无能为力;相比之下,通过建立动力学模型进行数值模拟研究的优势明显。但目前对凝结、激波等复杂物理现象的研究还很少且不够深入,对此进行了研究,并结合所做的研究工作进行了分析和展望,为今后的研究应用奠定基础。

A survey of the research findings in the study of the numerical simulation of steam-jet pumps was given from the following two aspects,namely,thermodynamic models and dynamic models. It has been noted that the traditional onedimensional numerical simulation based on the thermodynamics has a limited precision due to a large number of assumptions having been made and shows its incapability in detailed study of the complex physical phenomena such as condensation and shock waves in the pumps. In the contrast,to conduct a numerical simulation through establishing dynamic models has its conspicuous leading edges. However,up to date,the study of the condensation and shock waves etc. complex physical phenomena is rare and in the depth not enough. The authors have done some research work in this regard and made an analysis and looked into its prospects in combination with the work undertaken by them,thus laying a foundation for the future research and applications.