title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð²Ð»Ð¸ÑÐ½Ð¸Ñ Ð¸Ð·Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð² Ð²Ð¾Ð·Ð´ÑÑÐ½Ð¾Ð³Ð¾ Ð²Ð¸Ð½ÑÐ° Ð½Ð° ÐµÐ³Ð¾ Ð°ÑÑÐ¾Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¸Ðµ Ð¸ Ð°ÐºÑÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ñ Ð°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Study of the effect of changes in air propeller parameters on its aerodynamic and acoustic characteristics
Creators: name: ÐÐ¾ÑÑÐ°Ð³Ð¸Ð½, ÐÐ»ÐµÐºÑÐ°Ð½Ð´Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2024
Subjects: Ð²Ð¾Ð·Ð´ÑÑÐ½ÑÐ¹ Ð²Ð¸Ð½Ñ
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ÑÐ²Ð»ÑÑÐ¸Ð¾Ð½Ð½ÑÐ¹ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼
air propeller
CFD
finite volume method
blade tips
winglets
raked wingtips
acoustic characteristic
Ffowcs WilliamsâHawkings method
FW-H
evolutionary algorithm

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description: The given work is devoted to determining the characteristics of an air propeller with various types of blade tips, as well as finding the best blade tips geometry in order to increase the aerodynamic characteristic â lift force and reduce the acoustic characteristic â the level of produced noise. During the work, the following tasks were solved: - Building a digital model of the air propeller; - CFD calculations of the air propeller in the airspace at different speeds of rotation; - Digital model validation based on thrust data from an experiment; - Acoustic characteristic of the air propeller modeling by the Ffowcs WilliamsâHawkings integral method; - Evolutionary optimization algorithm application in order to find the best set of geometric parameters of the air propeller blade tips. As a result of the study, the geometry of the propeller was obtained, which makes less noise compared to the original version with an insignificant loss in lift force.