Investigation of propeller-wing interaction noise and the potential contribution to eVTOL noise

Bhaskar Mukherjee, Kenneth S. Brentner

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Interactional aerodynamic phenomena are expected to play an important role in conception, design and optimization of eVTOL configurations. Prediction of the complex three-dimensional and unsteady flowfield generated by the main rotary wings system (propellers, rotors) with other components of the eVTOL vehicle (wing, fuselage etc.) is critical for prediction of overall performance, stability and noise generation as a function of flight conditions. This paper focuses on breaking down these complex mechanisms and focusing on the simplest aerodynamic terms and their individual contribution to noise. The paper describes preliminary work done to explore the contribution of unsteady aerodynamic components to propeller-wing interaction noise for low tip-speed propellers. The Vortex Lattice Method in CHARM was partially validated against available propeller-wing wind tunnel data, with some modeling deficiencies identified. A historically unique case of noise measurements from the Vietnam-era YO-3A surveillance airplane is revisited and attempts were made to understand the unique trends of the experimental data presented in the report, while identifying the role of various components of the unsteady aerodynamics in low tip-speed propellers. This paper should be considered a progress report – more work needs to be done before final conclusions can be made.

Original languageEnglish (US)
Title of host publicationAeromechanics for Advanced Vertical Flight Technical Meeting 2020, Held at Transformative Vertical Flight 2020
PublisherVertical Flight Society
Pages78-92
Number of pages15
ISBN (Electronic)9781713806332
StatePublished - 2020
EventAeromechanics for Advanced Vertical Flight Technical Meeting 2020, Held at Transformative Vertical Flight 2020 - San Jose, United States
Duration: Jan 21 2020Jan 23 2020

Publication series

NameAeromechanics for Advanced Vertical Flight Technical Meeting 2020, Held at Transformative Vertical Flight 2020

Conference

ConferenceAeromechanics for Advanced Vertical Flight Technical Meeting 2020, Held at Transformative Vertical Flight 2020
CountryUnited States
CitySan Jose
Period1/21/201/23/20

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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