Aplicação da teoria do disco atuador a hélices tandem

• Grant number: 24/08051-8
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: July 01, 2024
• End date: June 30, 2025
• Field of knowledge: Engineering - Aerospace Engineering - Aerodynamics
• Principal Investigator: Roberto Gil Annes da Silva
• Grantee: Enrico Mazuco
• Host Institution: Divisão de Engenharia Aeronáutica (IEA). Instituto Tecnológico de Aeronáutica (ITA). São José dos Campos , SP, Brazil
• Company: Ministério da Defesa (Brasil). Instituto Tecnológico de Aeronáutica (ITA). Divisão de Engenharia Mecânica (IEM)
• Associated research grant: 21/11258-5 - Engineering Research Center for the Aerial Mobility of the Future (ERC-AMF), AP.PCPE

Abstract

A procedure is outline in this scientific initiation work for the design of tandem propellers. The specific tandem propeller arrangement discussed will be two propellers operating one behind the other, on the same shaft with the same rotational speed and direction of rotation, in a configuration known as co-rotating propellers. Tandem propellers at co-rotating conditions are traditionally used in marineoperations, i.e., under different Reynolds numbers and in absence of flow compressibility effects. The specific design procedure under investigation will be for the tandem unit operating in uniform inflow. A tandem propeller unit designed using this method will be built for experimental investigation in wind tunnel for known freestream conditions. The computed performance data are the basis of comparison for demonstrating the feasibility of tandem propellers configurations in terms of thrust efficiency when comparing to a single propeller at same operational conditions. (AU)