跨声速翼型风洞开孔壁的简化模型数值模拟

以开孔壁翼型风洞为研究对象，构建简化的仿真模型，模拟开风洞孔壁附近及小孔内的流动，研究开孔壁对风洞试验的影响。研究了开孔壁流动的主要特征参数并建立多孔板模型，为进一步建立数值风洞模型及研究洞壁干扰提供参考。通过简化的孔壁模型，研究了开闭比等特征参数对风洞流场和翼型绕流的影响。构建了二维简化孔壁模型和多孔介质孔壁模型，并验证了以多孔板模型模拟孔壁风洞流场的可行性。本文建立了一种研究跨声速孔壁风洞的孔壁效应的数值方法，为跨声速孔壁风洞流场的模拟研究提供参考，为进一步构建可靠的风洞孔壁数值模拟数学模型提供一种研究思路。

Numerical Simulation of Simplification Model for Perforated-Wall in Transonic Airfoil Wind Tunnel

The influence of perforated wall on subsonic and transonic wind tunnel tests is studied. The goal is to quantify the effects of the wind tunnel walls and characterize the key parameters affecting the flow field in order to construct a numerical model and realize experimental data corrections. With the numerical simulation analysis, a simplified 2-D perforated-wall model and a porous-medium-type wall model are established for a transonic perforated-wall wind tunnel. The effect of porous wall on the flow field of transonic airfoil wind tunnel is numerically simulated. The effect of parameters such as porosity of the perforated wall is analyzed. The porous-medium-type wall model is studied to provide a new method to simulate the flow field of perforated-wall wind tunnel. It would be helpful for the investigation of the wall effect in wind tunnel tests in the future.