航空学报2025，Vol.46Issue(20)：162-173,12.DOI:10.7527/S1000-6893.2025.31957
矢量风对飞机噪声足迹图的影响
Effect of vector wind on aircraft noise footprints
摘要
Abstract
Noise footprints are essential tools for assessing the impact of aircraft noise on communities surrounding airports.However,the widely used Noise-Power-Distance(NPD)empirical formula fails to account for the influence of vector winds on noise footprints during individual flight events,limiting its practical applicability.To address this chal-lenge,a predictive model for noise footprints under vector wind conditions is developed,based on a ray-tracing model for non-uniform atmospheric sound propagation.This model incorporates ground reflection effects and the refractive in-fluence of near-surface wind gradients on noise propagation,enabling accurate predictions of lateral attenuation across different wind directions.Model validation demonstrates strong agreement with experimental data from the literature,while showing significant improvements in computational efficiency compared to traditional grid-based methods.Re-search findings indicate that vector wind conditions significantly alter the lateral attenuation effect of sound propagation,compared to windless conditions,leading to pronounced asymmetry in noise contours during aircraft taxiing and initial climb phases.The proposed model can become an effective tool for enhancing the accuracy of noise impact assess-ments for nearby communities and planning land-use around airports under varying meteorological conditions.关键词
矢量风/噪声足迹图/横向衰减/声线法/大气折射效应Key words
vector wind/noise footprint/lateral attenuation/ray-tracing model/atmospheric refraction effect分类
航空航天引用本文复制引用
洪志亮,谢博思,张家齐,王萌,陈凌峰..矢量风对飞机噪声足迹图的影响[J].航空学报,2025,46(20):162-173,12.基金项目
国家自然科学基金(52276045) （52276045）
国家科技重大专项(J2019-Ⅷ-0014-0175) （J2019-Ⅷ-0014-0175）
中央高校基本科研业务费专项资金(3122021087) National Natural Science Foundation of China(52276045) （3122021087）
National Science and Technology Major Project of China(J2019-Ⅷ-0014-0175) （J2019-Ⅷ-0014-0175）
Fundamental Research Funds for the Central Universities(3122021087) （3122021087）
