CAJ | 학술논문

运用多孔圆盘模型来模拟水平轴潮流水轮机，进行水轮机流场研究，该方法相对简单且可靠。在不考虑模型缩放比例问题和CFD模型多孔圆盘网孔密度的条件下，多孔圆盘可以产生与水轮机相似的尾流场。本文运用商业软件Ansys CFX对多孔圆盘和水轮机流场进行模拟，对比多孔圆盘和水轮机的尾流场。对比结果表明，在保证CT值相等条件下多孔圆盘尾流场与水轮机尾流场基本相似，尤其是迎流面外的区域，验证了采用多孔圆盘模型来模拟水平轴潮流水轮机方法的可行性；并采用该方法研究了水轮机阵列布置时水轮机之间流场相互干扰的基本特征。
운용다공원반모형래모의수평축조류수륜궤，진행수륜궤류장연구，해방법상대간단차가고。재불고필모형축방비례문제화CFD모형다공원반망공밀도적조건하，다공원반가이산생여수륜궤상사적미류장。본문운용상업연건Ansys CFX대다공원반화수륜궤류장진행모의，대비다공원반화수륜궤적미류장。대비결과표명，재보증CT치상등조건하다공원반미류장여수륜궤미류장기본상사，우기시영류면외적구역，험증료채용다공원반모형래모의수평축조류수륜궤방법적가행성；병채용해방법연구료수륜궤진렬포치시수륜궤지간류장상호간우적기본특정。
Using porous discs to simulate horizontal axis tidal turbines is a simple and stable method. They generate a similar wake field as turbine, but ignore some of the scaling issues and mesh density in CFD calculations. Calculations of the paper based on commercial software Ansys CFX, and comparing the wake field between porous disc and turbine. With similar values of disc thrust coefficient (CT), the result shows that CFD disc model gives reasonable agreement with CFD turbine model, especially for the field which is out of disc area. This paper confirm that the method of using porous discs model to simulate tidal turbine wake is reasonable, and analysis the interaction between each turbine in a tidal array by using this method.