Abstract Fluid plays an important role in engineering application and the accurate control of the carrier is the premise of energy efficient conversion and management, such as the primary air volume of the boiler, the reactor inlet flowrate, the amount of oil and air intake of internal combustion engine, etc. Therefore, flowmeter plays an important role in energy conversion and management. In this work, a high-low frequency combined with reflection-penetration synchronization flowmeter was designed to measure the flowrate in casing device based on the characteristics of different frequencies of sound. The flowrate calculation method of casing device is given and verified by numerical simulation. The results show that the flowrate of different flow states can be calculated accurately by using the high-low frequency combined with reflection-penetration synchronization method. At the same time, the method can also be used in electromagnetic wave, optical and other fields.

中文翻译：

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换热套管内复杂流动的流量测量方法

摘要 流体在工程应用中起着重要的作用，载体的精确控制是锅炉一次风量、反应器入口流量、内部油量和进气量等能源高效转换和管理的前提。内燃机等。因此，流量计在能量转换和管理中起着重要的作用。本文根据不同频率声音的特性，设计了一种高低频结合反射-穿透同步流量计来测量套管装置内的流量。给出了套管装置的流量计算方法，并通过数值模拟进行了验证。结果表明，采用高低频结合反射-穿透同步方法可以准确计算出不同流态的流量。同时，该方法还可用于电磁波、光学等领域。