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一、概述在石油、化工、电力以及核能等工业生产和科研领域中,存在着大量的两相流体流量的检测问題。有些是要求测量出两相的总质量流量;有些则要求把气—液两相各自的流量都测量出来。更为复杂的还有:像油井的油—水—气两相三组分的流量测量问题。随着生产技术和科研水平的不断提高,两相流量的测量也变得日益重要和迫切。在两相流体的流动中,由于流型多而且不稳定,所以使得表征两相流流动状态的参数多而且关系复杂,以至于目前还没有很完善的描述两相流体流动的动力学方程式,从而决定了两相流量测量比单相流量测量要困难
I. Overview In the field of industrial production and scientific research of petroleum, chemical, electric power and nuclear energy, there are a large number of detection problems of two-phase fluid flow. Some require measuring the total mass flow of two phases; others require measuring the flow of each gas-liquid phase. More complicated: oil well - water - gas two-phase three-component flow measurement problems. With the continuous improvement of production technology and scientific research, the measurement of two-phase flow becomes more and more important and urgent. Due to the large and unstable flow pattern in the two-phase flow, the parameters that characterize the flow state of the two-phase flow are so complex and complex that there is not yet a well-established kinetic equation describing the flow of the two-phase fluid Determine the two-phase flow measurement than the single-phase flow measurement to be difficult