一、前言 当前在能源、化工、冶金等领域的设备中存在着大量的含灰气流对换热管束的冲击碰撞和磨损问题,这种冲击磨损直接影响到工业设备的安全性和使用寿命。本文旨在寻求将多相流动理论和材料学相结合的研究方法,对煤灰粒子流冲击磨损管束问题进行探索尝试。 I. Introduction At present, there are a lot of impact and abrasion problems in the equipment of energy, chemical industry, metallurgy and other fields in equipment containing heat and gas flow, which directly affects the safety and service life of industrial equipment. The purpose of this paper is to find a way to combine the theory of multiphase flow and material science to explore the problem of particle bundle impingement on the tube bundle.