Results 231 to 240 of about 1,520 (247)
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International Journal of Numerical Methods for Heat & Fluid Flow, 2023
Purpose In a boundary layer ingestion (BLI) propulsion system, the fan operates continuously under distorted inflow conditions, leading to an increment of aerodynamic loss and in turn impacting the potential fuel burn reduction of the aircraft. Usually,
Kaikai Shi +6 more
semanticscholar +1 more source
Purpose In a boundary layer ingestion (BLI) propulsion system, the fan operates continuously under distorted inflow conditions, leading to an increment of aerodynamic loss and in turn impacting the potential fuel burn reduction of the aircraft. Usually,
Kaikai Shi +6 more
semanticscholar +1 more source
50th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, 2012
A methodology for analyzing the boundary layer ingestion technology on a hybrid wing body aircraft has been developed using a simplified boundary layer analysis based on computation fluid dynamic results. With certain assumptions, a method for calculating the boundary layer velocity profiles across the flight envelope was shown using a log-wake ...
Jonathan Gladin +3 more
openaire +1 more source
A methodology for analyzing the boundary layer ingestion technology on a hybrid wing body aircraft has been developed using a simplified boundary layer analysis based on computation fluid dynamic results. With certain assumptions, a method for calculating the boundary layer velocity profiles across the flight envelope was shown using a log-wake ...
Jonathan Gladin +3 more
openaire +1 more source
Design of a sub-scale fan for a boundary layer ingestion test with by-pass flow
Aeronautical Journal, 2022A design of a sub-scale Boundary Layer Ingestion (BLI) fan for a transonic test rig is presented. The fan is intended to be used in flow conditions with varying distortion patterns representative of a BLI application on an aircraft.
H. Mårtensson +5 more
semanticscholar +1 more source
48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2012
of the concept. The current paper presents a modeling approach that allows for the modeling of BLI at multiple design points and throughout the mission operating envelope. Furthermore, the paper presents a probabilistic engine cycle design space study for a 300 passenger HWB aircraft using the EDS design tool that explores the impacts of the various ...
Jonathan Sands +3 more
openaire +1 more source
of the concept. The current paper presents a modeling approach that allows for the modeling of BLI at multiple design points and throughout the mission operating envelope. Furthermore, the paper presents a probabilistic engine cycle design space study for a 300 passenger HWB aircraft using the EDS design tool that explores the impacts of the various ...
Jonathan Sands +3 more
openaire +1 more source
Journal of Fluids Engineering, 2021
In a boundary layer ingesting (BLI) propulsion system, the fan is continuously exposed to inflow distortions. The distorted inflows lead to nonuniform loss distributions along the radial and circumferential directions.
Zhe-chao Yang +3 more
semanticscholar +1 more source
In a boundary layer ingesting (BLI) propulsion system, the fan is continuously exposed to inflow distortions. The distorted inflows lead to nonuniform loss distributions along the radial and circumferential directions.
Zhe-chao Yang +3 more
semanticscholar +1 more source
The Physics of Fluids
The boundary layer ingestion (BLI) propulsion system is mostly partially or fully embedded into the aircraft fuselage. To adapt to the irregular geometrical shape of the blended wing body aircraft surface, a semicircular-to-circular S-shape inlet duct is
Hanan Lu, Haoran Li, Lei Wang, Qiushi Li
semanticscholar +1 more source
The boundary layer ingestion (BLI) propulsion system is mostly partially or fully embedded into the aircraft fuselage. To adapt to the irregular geometrical shape of the blended wing body aircraft surface, a semicircular-to-circular S-shape inlet duct is
Hanan Lu, Haoran Li, Lei Wang, Qiushi Li
semanticscholar +1 more source
Numerical Turbulence Modeling in a Transonic Boundary-Layer Ingestion Intake
Journal of Propulsion and PowerThe boundary–layer ingestion (BLI) engine concept is a possible solution to improve aircraft efficiency for the next decades. This concept enables an improvement in engine efficiency due to the lower momentum flow ingested at the air intake. In addition,
H. A. Solorzano Flores +3 more
semanticscholar +1 more source
, 2020
Boundary-layer ingestion (BLI) promises increased aircraft efficiency, but excessive inlet distortion must be avoided to prevent fans that are too heavy or structurally infeasible.
J. Gray, C. Mader, G. Kenway, J. Martins
semanticscholar +1 more source
Boundary-layer ingestion (BLI) promises increased aircraft efficiency, but excessive inlet distortion must be avoided to prevent fans that are too heavy or structurally infeasible.
J. Gray, C. Mader, G. Kenway, J. Martins
semanticscholar +1 more source
Energy Storage, 2020
A modelling approach of Boundary Layer Ingesting (BLI) propulsion systems is presented. Initially, a distorted compressor model is created utilizing the parallel compressor theory to estimate the impact of inlet distortion on fan performance.
Georgios Athanasakos +3 more
semanticscholar +1 more source
A modelling approach of Boundary Layer Ingesting (BLI) propulsion systems is presented. Initially, a distorted compressor model is created utilizing the parallel compressor theory to estimate the impact of inlet distortion on fan performance.
Georgios Athanasakos +3 more
semanticscholar +1 more source
Aeropropulsive Design Optimization of a Boundary Layer Ingestion System
AIAA Aviation 2019 Forum, 2019Boundary layer ingestion (BLI) is a technology where the main propulsion system or an auxiliary fan is used to ingest the wake generated by the aircraft to improve aeropropulsive performance.
Anil Yildirim +3 more
semanticscholar +1 more source