CAJ | 학술논문

以大型消音除尘进气管道为研究对象，对其内部流场及结构场进行流固耦合数值分析。根据流体力学基本方程和流固耦合基本方程，应用C FX对管道内部流场进行模拟仿真，得出管道内压力、速度云图。将流场计算结果导入Workbench ，利用流固耦合理论，得出耦合后管壁的压力分布和等效变形云图。仿真结果表明，空气流经管道时，从进风口处到出风口处，管道中压力水头转化成速度水头，压力减小，流速增大，出风口处产生负压；耦合后管壁存在微小变形，管壁四个角的变形明显大于壁面变形。
이대형소음제진진기관도위연구대상，대기내부류장급결구장진행류고우합수치분석。근거류체역학기본방정화류고우합기본방정，응용C FX대관도내부류장진행모의방진，득출관도내압력、속도운도。장류장계산결과도입Workbench ，이용류고우합이론，득출우합후관벽적압력분포화등효변형운도。방진결과표명，공기류경관도시，종진풍구처도출풍구처，관도중압력수두전화성속도수두，압력감소，류속증대，출풍구처산생부압；우합후관벽존재미소변형，관벽사개각적변형명현대우벽면변형。
Taking the large noise‐reducing and dust‐removing inlet pipe system as research object ,nu‐merical analysis of fluid‐solid coupling of the structure and internal flow field in the pipe was per‐formed .According to the basic equations of fluid mechanics and fluid‐solid coupling ,the internal flow field in the pipe was simulated by CFX and the pressure and velocity distribution in the pipeline were obtained .The simulation results were imported into Workbench ,and aided by fluid‐solid coupling theory ,the pressure distribution and the equivalent deformation of the pipe wall were derived .The simulation data show that while the air flows through the pipe ,the pressure head in the pipe changes into the velocity head ,with the increase of the velocity and the decrease of the pressure that results in negative pressure at the outlet .After fluid‐solid coupling ,there’s small deformation on the pipe wall and the deformation on the four corners of pipe wall are significantly higher than those on the pipe w all .