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首页> 外文期刊>Thermal engineering >Development of the scientific heritage of M.E. Deich in the sphere of the gas dynamics of two-phase media (On the 100th anniversary of his birthday)
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Development of the scientific heritage of M.E. Deich in the sphere of the gas dynamics of two-phase media (On the 100th anniversary of his birthday)

机译：在两相介质的气体动力学领域发展M.E. Deich的科学遗产（在他诞辰100周年之际）

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摘要

This article is a brief overview of some scientific and engineering ideas in the sphere of two-phase gas dynamics that were developed by the team of the Problem Laboratory of Turbomachines, Department of Steam and Gas Turbines, Moscow Power Engineering Institute (NRU MPEI, National Research University), under the leadership of Mikhail Efimovich Deich since 1963 and the analysis of their development and influence on the current state of the problem. At the early stages of the studies on two-phase media, the problem of the measurement of physical parameters of phases was especially urgent. The characteristics of probes for the measurement of one-phase flows in the presence of drops were studied, and the corrections for the influence of the second phase were obtained. However, the main focus was the development of new methods, and the optical method using a laser light source that is currently used at the leading laboratories of the world was chosen as the main method. The study of the wet-steam flow in nozzles is one of the first stages of the research on the problem. In these studies, the wave structure of supersonic wet-steam flows (condensation jumps and shock waves, Mach waves, turbulent condensation, periodic condensation nonstationarity, etc.) was investigated in detail. At present, like in the earlier studies, much attention is paid to the study of the influence of the addition of surface-active substance (SASs) on the wet-steam flow. The study of the wet-steam motion in steam-turbine stages was performed simultaneously with physical studies as the practical application of the obtained results. The development of computer technology in the 21st century contributed to the elaboration of the theoretical methods for the calculation of wet-steam flows in elements of power devices.
机译：本文简要概述了两相气体动力学领域的一些科学和工程学思想，这些思想是由莫斯科动力工程学院蒸汽与燃气轮机系涡轮机问题实验室的团队开发的。研究大学），自1963年以来在米哈伊尔·埃菲莫维奇·德希（Mikhail Efimovich Deich）的领导下，对其发展和对问题现状的影响进行了分析。在关于两相介质的研究的早期，特别需要解决相的物理参数的测量问题。研究了在液滴存在下用于测量一相流量的探头的特性，并获得了对第二相影响的校正。然而，主要焦点是新方法的开发，并且选择了当前在世界领先实验室中使用的使用激光光源的光学方法作为主要方法。对喷嘴中湿蒸汽流的研究是对该问题进行研究的第一阶段之一。在这些研究中，详细研究了超声速湿蒸汽流的波结构（凝结跳跃和激波，马赫波，湍流凝结，周期性凝结非平稳性等）。目前，与早期研究一样，对表面活性物质（SASs）添加对湿蒸汽流动的影响的研究也引起了很多关注。汽轮机阶段湿蒸汽运动的研究与物理研究同时进行，作为所得结果的实际应用。 21世纪计算机技术的发展为阐述计算动力装置中湿蒸汽流量的理论方法做出了贡献。

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