Results 1 to 10 of about 5,231 (285)

Aeroacoustics of the propeller Boundary Layer Ingestion configuration for varying thrusts

open access: yesJournal of Sound and Vibration
The Boundary Layer Ingestion (BLI) configuration is a promising installed propulsion arrangement for aircraft owing to its potential to boost aerodynamic efficiency. However, it is prone to generate additional noise as the inflow to the propulsion system is non-uniform and turbulent due to the ingested boundary layer.
Ismaeel Zaman, M Falsi, Bin Zang
exaly   +5 more sources

Modelling of A Boundary Layer Ingesting Propulsor [PDF]

open access: yesEnergies, 2018
Boundary layer ingestion is a promising method to decrease the propulsive power consumption of an aircraft, and therefore the fuel consumption. This leads to a reduced environmental impact and an improved cost-efficiency. To get a better understanding of
Nils Budziszewski, Jens Friedrichs
doaj   +3 more sources

Suction Control of a Boundary Layer Ingestion Inlet

open access: yesAerospace, 2023
This study presents a numerical investigation of suction control in an aggressive S-shaped air intake with large boundary ingestion. The results show that the variation of suction control parameters such as suction location, suction pipe diameter, and ...
Lei Liu   +3 more
doaj   +2 more sources

Proof of Concept Study for Fuselage Boundary Layer Ingesting Propulsion [PDF]

open access: yesAerospace, 2021
Key results from the EU H2020 project CENTRELINE are presented. The research activities undertaken to demonstrate the proof of concept (technology readiness level—TRL 3) for the so-called propulsive fuselage concept (PFC) for fuselage wake-filling ...
Arne Seitz   +12 more
doaj   +5 more sources

2D Numerical Study on the Flow Mechanisms of Boundary Layer Ingestion through Power-Based Analysis

open access: yesAerospace, 2022
This paper aims to establish an approach of power bookkeeping in a numerical study. To study the process of power conversion coursed in the flow field, the methodology employs a power-based analysis to quantify power terms. This approach is examined in a
Peijian Lv   +4 more
doaj   +3 more sources

Computational Study of the Propeller Position Effects in Wing-Mounted, Distributed Electric Propulsion with Boundary Layer Ingestion in a 25 kg Remotely Piloted Aircraft

open access: yesDrones, 2021
Distributed electric propulsion and boundary layer ingestion are two attractive technologies to reduce the power consumption of fixed wing aircraft.
José Ramón Serrano   +3 more
doaj   +3 more sources

Aeroacoustics and psychoacoustics characterization of a boundary layer ingesting ducted fan. [PDF]

open access: yesNPJ Acoust
Abstract A comprehensive wind tunnel investigation was conducted to analyze noise generation, propagation, and perception mechanisms in a boundary layer ingesting (BLI) ducted fan through integrated aeroacoustic and psychoacoustic assessments.
Ahmed F   +3 more
europepmc   +3 more sources

Advancements and prospects of boundary layer ingestion propulsion concepts

open access: yesProgress in Aerospace Sciences, 2023
The aviation sector is experiencing an increasing pressure to reduce emissions via long-term strategies for a ceaselessly growing number of flight passengers. Aircraft currently in operation have typically been designed by considering the airframe somewhat separately from the propulsion system.
Nicolas G M Moirou   +2 more
exaly   +4 more sources

Numerical Investigation on the Effect of Height-to-Radius Ratio on Flow Separation Features in S-Shaped Diffuser with Boundary Layer Ingestion

open access: yesAerospace, 2023
The flow separation occurring in the S-shaped diffuser with boundary layer ingestion (BLI) has a significant effect on the performance of the embedded engine. Previous studies have found that the area ratio (AR) as well as the length-to-offset ratio (LOR)
Zhiping Li   +3 more
doaj   +3 more sources

Feasibility study of an induction motor rim drive for an aircraft boundary-layer-ingestion fan

open access: yesThe Journal of Engineering, 2019
This study presents a feasibility study for an induction motor rim drive to power aircraft boundary-layer-ingestion (BLI) fans. The design is developed from a BLI-fan specification for traditional aircraft architecture: the rotor is fastened to the rim ...
Alexander C. Smith   +2 more
doaj   +3 more sources

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