#40;固箭发动机原理#41;两相流动力学跟踪研究深度分析思考.docVIP

摘要 两相流系统应用于许多工程领域，但两相流理论目前发展还不全面，还处于发展的初期阶段。对固体发动机而言，存在着很多有关两相流的问题，比如发动机比冲预估时要考虑两相流的损失、计算两相间的相互作用的阻力和传热时要考虑两相流的影响、热结构设计中要计及两相流动等。因此对两相流动力学进行跟踪研究是十分必要的，以便了解两相流的发展现状，发现两相流理论和应用过程中存在的问题，找出解决两相流问题的方法，并掌握其发展方向。 本文的主要研究内容包括： （1）归纳总结了两相流的发展与研究现状，详述了两相流的发展进程以早期的研究成果。到目前为止，两相流理论还不够完善，两相流仍处在发展的初期阶段；两相流的数值模拟研究早已是探索两相流动机理的重要手段之一；同时海内外的学者们也早已将注意力集中在两相流的相关研究上，并取得了较大的成果结果表明：两相流纯气相流场变化规律相同；中温度纯气相的温度；马赫数比纯气相稍低 Abstract Two-phase flow system is applied in many engineering fields, but the theory of two-phase flow is not comprehensive, and is still in the initial stage of development. There are a lot of questions about two-phase flow in the solid rocket motor. For example, predicting the specific impulse of the engine have to consider the two-phase flow loss, the calculation of interaction of resistance and heat transfer between two phases needs consider the influence of the two-phase flow and design of the thermal structure must consider to gauge two-phase flow. So it is necessary to study the two-phase flow dynamics, in order to understand the current situation of two-phase flow, and find the problems in two-phase flow theory and application. To find out the method of solving the two-phase flow problem and to master its developing direction. The main contents of this paper are: (1) The development of two-phase flow and the research status are summarized, and the development of two-phase flow is described in the early stage. So far, the two-phase flow theory is still not perfect, two-phase flow is still in the early stages of development; two-phase flow numerical simulation research has is to explore the mechanism of two-phase flow, the main way; at the same time scholars at home and abroad has long been the focus in the study of two-phase flow, and has made great progress. （2）The progress and latest research results of two phase flow in aviation and spaceflight were summarized. Great achievements have been made in the research on nozzle, wherein the two-phase flow loss,