Empennage Wake Filling using Steady Chord-wise Blowing for Propulsive Fuselage Concepts

Empennage Wake Filling using Steady Chord-wise Blowing for Propulsive Fuselage Concepts

Garg, Sparsh (TU Delft Aerospace Engineering)

Veldhuis, L.L.M. (mentor)
van Sluis, M. (mentor)
Gangoli Rao, A. (graduation committee)
van Zuijlen, A.H. (graduation committee)

Delft University of Technology

Aerospace Engineering | Flight Performance and Propulsion

APPU Project

2022-04-14

It is the need of the hour to focus research and development towards curbing emissions due to the growing aviation industry. Employing boundary layer Ingesting(BLI) propellers for development of propulsive fuselage concept(PFC) aircraft while utilizing hydrogen as an alternative energy source, is the idea behind project APPU(Advanced Propulsion and Power Unit). However, the empennage wake is detrimental to the propeller. This study uses chord-wise wake blowing technique to fill the empennage wake in order to mitigate the detrimental effects of the wake on the inflow of the aft mounted BLI propeller. A near complete wake filling was observed for the blown configuration, with a 99.7% uniformity in the velocity profiles for the filled empennage wake. The addition to the overall aircraft drag due to the wake blowing system was less than 2 drag counts and a mass flow rate of 0.91-1.23Kg/s was found to be required in the blown cases.

Propulsive fuselage concept
Wake filling
Chord-wise blowing
Boundary layer ingestion
Pusher propeller

http://resolver.tudelft.nl/uuid:4938e134-543f-41d8-befc-78309a82a499

Student theses

master thesis

© 2022 Sparsh Garg