What is it about?
Moving from 1D gust as a mode of turbulence to a complete turbulence ingestion generated by cylinder wake. The momentum source replicates the wake and provides a similar impact with the carrier frequency as the most energetic mode in the spectrum, proving previous findings and showing the increased level of noise on the whole spectrum.
Featured Image
Photo by Vadym Alyekseyenko on Unsplash
Why is it important?
It is a second step in the series of papers, which finds a way to provide understanding of the whole turbulence impact on the eVTOL rotor. The cylinder wake is simple and well studied, as well as can be "easily" replicated by the momentum source, which ultimately validates last one.
Perspectives
Modeling complex, real-world environments in computational fluid dynamics presents significant computational challenges. For Urban Air Mobility (UAM) aeroacoustics to advance, we need practical ways to simulate realistic urban inflows. From my perspective, the primary value of this work lies in the three-stage framework we implemented. By using a momentum source formulation to generate synthetic turbulence, we decoupled the turbulence generation from a physical body. This provides a computationally efficient method for injecting specific urban wind disturbances directly into the rotor domain.
Vadim Voropayev
Embry-Riddle Aeronautical University
Read the Original
This page is a summary of: High-Fidelity Simulations of eVTOL Rotor Turbulence Ingestion Noise, May 2026, American Institute of Aeronautics and Astronautics (AIAA),
DOI: 10.2514/6.2026-3599.
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