CAJ | 학술논문

根据不可压缩流体理论，加载修正后的入口风速表达式，并利用流体仿真软件建立风洞模型，对流场进行仿真分析；通过对比实验数据与仿真结果来验证模型的合理性，并对改进收缩段风洞进行仿真，比较两组风洞的流场品质；通过对流体域入口及出口处气流速度的积分运算，计算出风能利用率的差值。结果表明：改进模型能够进一步提高风洞内空气的流速，增强风能的利用效率。
근거불가압축류체이론，가재수정후적입구풍속표체식，병이용류체방진연건건립풍동모형，대류장진행방진분석；통과대비실험수거여방진결과래험증모형적합이성，병대개진수축단풍동진행방진，비교량조풍동적류장품질；통과대류체역입구급출구처기류속도적적분운산，계산출풍능이용솔적차치。결과표명：개진모형능구진일보제고풍동내공기적류속，증강풍능적이용효솔。
According to the theory of incompressible fluid,flow field in wind tunnel model was simulated by fluid simulation software after loading revised wind speed formula of entrance.It was proved to be reasonable by comparison of the experimental data and simulation results,modified wind tunnel model was also built and compared.The difference of wind energy utilization rates was obtained by the integral operation of entrance and exit velocity in the fluid domain.All calculated results show that modified model can be used to increase the air flow rate further and improve the wind energy utilization rate.