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Article
Open AccessExperimental Assessment of the Flow Recirculation Effect on the Noise Measurement of a Free-Flying Multi-rotor UAS in a Closed Anechoic Chamber
The flow recirculation effect on the noise measurement of a multi-rotor unmanned aircraft system (UAS) hovering in a closed anechoic chamber is experimentally characterized in this work. The measured acoustic ...
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Article
Open AccessThe influence of crosswinds and leg positions on cycling aerodynamics
This work investigated the influence of crosswinds and leg positions on the aerodynamics of an articulated cycling mannequin on a track bicycle. Force, wake total pressure and wake velocity measurements were m...
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Article
Open AccessThe impact of COVID-19 on online medical education: a knowledge graph analysis based on co-term analysis
This study aims to identify the characteristics and future directions of online medical education in the context of the novel coronavirus outbreak new through visual analytics using CiteSpace and VOSviewer bib...
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Article
Open AccessBiomechanical study of the stiffness of the femoral locking compression plate of an external fixator for lower tibial fractures
A locking compression plate (LCP) of the distal femur is used as an external fixator for lower tibial fractures. However, in clinical practice, the technique lacks a standardized approach and a strong biomecha...
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Article
An efficient and high-order sliding mesh method for computational aeroacoustics
This paper presents an efficient sliding mesh method to simulate the noise emission from aero-engines. The vortexes shed from the rotating blade and interact with the downstream stationary outlet guide vanes (...
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Chapter and Conference Paper
Supercomputer Simulation of Turbulent Flow Around Isolated UAV Rotor and Associated Acoustic Fields
The paper presents the results of supercomputer simulations of turbulent flow around a rotor of a small-scale unmanned aerial vehicle. Rotor aerodynamics and near-field acoustics are modeled using both RANS an...
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Chapter and Conference Paper
Broadband Aerodynamic Noise Simulation Using Synthetic Turbulence Methods
Turbulence generated broadband noise is an important source of noise that can be found in many applications. The characteristics of noise are defined by a combination of turbulence statistics, flow and geometr...