某半直流式风洞动力系统流动特性数值模拟研究  

Numerical simulation study on flow characteristics of a semi-DC wind tunnel power system

作　　者：韩涛[1] HAN Tao(Naval Military Aviation Representative Shenyang Office,Shenyang 110034,China)

机构地区：[1]海军驻沈阳地区航空军事代表室,沈阳110034

出　　处：《沈阳航空航天大学学报》2019年第2期59-65,共7页Journal of Shenyang Aerospace University

摘　　要：针对某半直流式风洞动力系统稳定运行状态进行数值模拟研究,流场解析求解定常条件下的雷诺平均Navier-Stokes方程,动力系统采用真实涡轮叶片模型,应用混合面模型进行简化,分析洞体出口位置的气流特性。涡轮叶片旋转引起的气流旋转效应没有完全消除,该风洞需要增加阻尼网等装置进一步降低气流湍流度。A numerical simulation study of a semi-DC wind tunnel power system was carried out under stable operation state.The Reynolds-average Navier-Stokes equation was solved under steady condition to analyze the flow field.A real turbine blade model was used to simulate the power system and then simplified by the mix plane model to analyze the airflow characteristics at the exit of the wind tunnel.The airflow rotation effects caused by the rotation of the turbine blades are not eliminated completely,and the wind tunnel needs more devices such as the damping net to further reduce the airflow turbulence.

关 键 词：半直流式风洞 气流特性 数值模拟 混合面模型 湍流度 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]