Hanson's Model in Frequency Domain - Tonal Noise of Rotors in Uniform Inflow

This MATLAB code is based on Hanson's Paper titled "Helicoidal Surface Theory for Harmonic Noise of Propellers in the Far Field" with DOI https://doi.org/10.2514/3.50873 and is meant to be used for tonal noise prediction of rotors with uniform inflow with propeller axis aligned with the inflow. This code is based on the frequency domain formulation and is only valid for far-field noise predictions of thickness and loading noise.

本MATLAB代码基于汉森（Hanson）发表的题为《远场螺旋桨谐频噪声的螺旋面理论》的学术论文，该论文的DOI为https://doi.org/10.2514/3.50873。该代码旨在用于螺旋桨轴线与来流方向一致的均匀来流工况下转子的纯音噪声（tonal noise）预测。本代码基于频域公式（frequency domain formulation）构建，仅适用于厚度噪声（thickness noise）与载荷噪声（loading noise）的远场噪声预测。