Results 261 to 270 of about 5,231 (285)

Calculation of scramjet inlet with thick boundary-layer ingestion

Journal of Propulsion and Power, 1993
Numerical flowfields around a scramjet inlet model are simulated and analyzed. The present inlet flowfield is characterized by thick boundary-layer ingestion and strong viscous/inviscid interaction because of a combined effect of high hypersonic freestream Mach and low Reynolds numbers. Shock-induced separation further enlarges regions of viscous flows
H. LAI, S. KIM, H. NAGAMATSU
openaire   +1 more source

Multidisciplinary Optimization Method for Designing Boundary-Layer-Ingesting Inlets

Journal of Aircraft, 2002
The blended wing body is a revolutionary conceptual aircraft design with rear-mounted, overwing engines. Two types of engine installations are being considered for this aircraft. The more conventional design has engines installed within nacelles that are mounted on pylons above the wing surface.
openaire   +1 more source

Aircraft System Study of Boundary Layer Ingesting Propulsion

48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2012
A trade-factor-based system study has been carried out to identify fuel burn benefits associated with boundary layer ingestion (BLI) for generation-after-next (N+2) aircraft and propulsion system concepts. The analysis includes detailed propulsion system engine cycle modeling for a next-generation, Ultra-High-Bypass (UHB) propulsion system with BLI ...
Larry Hardin, Gregory Tillman, Om Sharma, Jeffrey Berton, David Arend   +4 more
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Preliminary Aerodynamic Design and Assessment of Boundary Layer Ingesting Fans [PDF]

Boundary Layer Ingestion (BLI) is a promising technology for reducing fuel burn and environmental impact in civil aviation. With BLI, the fan is exposed to circumferentially and radially varying inflow conditions. The consideration of BLI during preliminary aerodynamic design is challenging as the calculation of BLI flow is either very time consuming ...
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Blowing model for turbulent boundary-layer dust ingestion

AIAA Journal, 1984
Abstract : The rate at which dust is ingested into a turbulent boundary layer is deduced for the case of a semi-infinite flat plate and for the boundary layer behind a moving shock wave. Conventional turbulent boundary-layer theory is used. It is assumed that the local dust-ingestion rate corresponds to the 'blowing' rate at which the local unblown ...
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A Theoretical Analysis of Boundary Layer Ingestion and Wake Ingestion

2022
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Numerical investigation on the forced vibration induced by the low engine order under boundary layer ingestion condition

Aerospace Science and Technology, 2021
Tianyu Pan
exaly  

On the Mechanism of Rotating Stall in a Boundary Layer Ingesting Fan

Journal of Engineering for Gas Turbines and Power
Abstract Next-generation boundary layer ingesting (BLI) aircraft can achieve significant reductions in fuel burns compared to conventional aircraft. One of the challenges for BLI aircraft is the need for the fan to continuously operate with inlet distortions. However, until now the effect of real BLI distortions on rotating stall remains
Hefang Deng, Songan Zhang, Kailong Xia, Xiaoqing Qiang, Mingmin Zhu, Jinfang Teng   +5 more
openaire   +1 more source

Power-Based Study of Boundary Layer Ingestion for Aircraft Application

SpringerBriefs in Applied Sciences and Technology, 2023
Peijian Lv
exaly  

Series-hybridisation, distributed electric propulsion and boundary layer ingestion in long-endurance, small remotely piloted aircraft: Fuel consumption improvements

Aerospace Science and Technology, 2022
Andres Tiseira, Luis MIGUEL García-Cuevas, P Quintero   +2 more
exaly