Congratulations to Dr. BAO Hongsen on earning his PhD

AANTC congratulates Dr. BAO Hongsen on completing his doctoral degree requirements and earning his PhD. His dissertation is entitled “On the Gaussian beam tracing method for high-frequency sound wave propagation in inhomogeneous flows”.

His research addresses the accurate and efficient prediction of sound propagation in urban environments, where wind fields and building boundaries produce complex acoustic phenomena. He developed a Gaussian beam tracing (GBT) method for high-frequency sound propagation in inhomogeneous flows, balancing computational cost and numerical accuracy.

The formulation was validated against benchmark cases of varying complexity and integrated into a low-altitude aircraft noise mapping simulation platform.

We thank Dr. Bao for his contributions to the group and wish him every success in his postdoctoral research.

Related publications

1. H. Bao, Q. Tan, P. Zhou, W. Chen, X. Zhang, and S. Zhong, “On the Gaussian beam tracing method for long-distance sound wave propagation in non-uniform mean flows,” Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, vol. 481, no. 2307, 2025.
2. H. Bao, J. He, Z. Zhang, and X. Zhang, “Sound transmission of drones in urban wind conditions,” in Quiet Drones, 2026.
3. H. Bao, P. Zhou, and X. Zhang, “On the high-order Gaussian beam series method for acoustic lateral wave propagation in stratified flows,” in 32nd International Congress on Sound and Vibration, 2026.
4. H. Bao, Q. Tan, J. He, P. Zhou, W. Chen, and X. Zhang, “The air vehicle flyover noise assessment in urban areas with complex urban wind conditions,” in 31st International Congress on Sound and Vibration, 2025.
5. H. Bao, P. Zhou, W. Chen, X. Zhang, and S. Zhong, “An improved Gaussian beam tracing method for the long-distance sound wave propagation in nonuniform mean flows,” in 30th International Congress on Sound and Vibration, 2024.