Revisiting Froude’s Theory for Hovering Shrouded Rotor

This paper extends Froude’s momentum theory for free propellers to the analysis of shrouded rotors. A one-dimensional analytical approach is provided, and a homokinetic normal inlet surface model is proposed. Formulations of thrusts and power for each system component are derived, leading to the def...

Full description

Saved in:
Bibliographic Details
Published in:AIAA journal 2015-07, Vol.53 (7), p.1836-1844
Main Authors: Jardin, T, Grondin, G, Gressier, J, Huo, C, Doué, N, Barènes, R
Format: Article
Language:English
Subjects:
Aerodynamics
Aerospace engineering
Assessments
Automatic
Design engineering
Dimensional analysis
Engineering Sciences
Hovering
Inlets
Mathematical analysis
Mathematical models
Micro air vehicles (MAV)
Momentum theory
Optimization
Propellers
Rotors
Thrust
Viscosity
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper extends Froude’s momentum theory for free propellers to the analysis of shrouded rotors. A one-dimensional analytical approach is provided, and a homokinetic normal inlet surface model is proposed. Formulations of thrusts and power for each system component are derived, leading to the definition of optimum design criteria and providing insight into the global aerodynamics of shrouded rotors. In the context of micro-air vehicles applications, assessment of the model is conducted with respect to numerical data. Overall, comparison between numerical and analytical results shows good agreement and highlights the sensitivity of the model to viscous effects.
ISSN:0001-1452
1533-385X
DOI:10.2514/1.J053507