Results 101 to 110 of about 13,824 (304)

Preliminary design of an adaptive aileron for next generation regional aircraft

Journal of Theoretical and Applied Mechanics, 2017
Design of morphing wings at increasing TRL is common to several research programs worl- dwide. They are focused on the improvement of their performance that can be expressed in several ways, indeed: aerodynamic efficiency optimization, fuel consumption reduction, COx and NOx emission reduction and so on, or targeted to overcome the classical draw ...
AMENDOLA, GIANLUCA, Dimino, I., CONCILIO, ANTONIO, AMOROSO, FRANCESCO, PECORA, ROSARIO   +4 more
openaire   +5 more sources

Contributing Factors in Piper PA28 and Cirrus SR20 Aircraft Accidents [PDF]

, 2011
A large midwestern university has recently acquired Cirrus SR20 aircraft to replace an aging Piper PA28-161 fleet. This change to new and more advanced Cirrus aircraft has led to major changes in the flight program curriculum.
Franza, Andrew J
core   +1 more source

The benefits of a hybrid‐3DEnVar data assimilation scheme for the convection‐permitting NWP model AROME–Austria

Quarterly Journal of the Royal Meteorological Society, EarlyView.
The climatological‐error covariance matrix used in three‐dimensional variational data assimilation (3DVar) provides smooth and isotropic increments spread to long distances. In contrast, three‐dimensional ensemble variational data assimilation (3DEnVar) with a purely ensemble‐error covariance matrix provides inhomogeneous increments and contains the ...
Kaushambi Jyoti, Philipp Griewank, Florian Meier, Martin Weissmann   +3 more
wiley   +1 more source

Manufacturing and Subsystem Validation of an HTS Electric Motor for Single-Aisle Regional Aircraft Propulsion

IEEE Access
This paper presents the design, manufacturing process and subsystem validation of a superconducting electric machine designed to replace a conventional turbine in a regional aircraft.
Pablo Alvarez, Jonan Morales, Marco Satrustegui, Miguel Martinez-Iturralde   +3 more
doaj   +1 more source

A Novel Airframe Design Methodology For Silent Aircraft [PDF]

, 2008
The impact of noise on civil aviation is not just a localised airport problem, but a global concern, due to the ever-increasing demands for passenger travel.
Mistry, Sunil
core  

Numerical simulation and physical understanding of a locally initiated sea fog event over the eastern Yellow Sea with a transition of air–sea temperature difference

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Unexpected sea fog in the west coast of South Korea had a huge impact on the transportations in the Seoul–Incheon metropolitan area. We reproduced successfully the formation and evolution of a sea event with a transition of air–sea temperature difference using the Weather Research and Forecasting model.
Jeonghoe Kim, Jung‐Hoon Kim, Clive E. Dorman, Harindra J. S. Fernando   +3 more
wiley   +1 more source

Conceptual Design of a Hybrid-Electric Aircraft Based on a Dornier 328 Demonstrator

Aerospace
Air travel contributed 3.5% to global warming in 2020, with a rising tendency. Only one third of the climate impact is caused by CO2. Other exhaust gases that cause harm to the climate are nitrogen oxides, soot, and water vapor, creating contrails with a
Annika Nora Staats, Florian Troeltsch, Andreas Bardenhagen   +2 more
doaj   +1 more source

Comparison of Sustainable Regional Aircraft Concepts [PDF]

, 2022
The presentation shows a comparison between three 70-seater aircraft concepts calculated within the DLR's internal EXACT project. All three concepts assume an entry into service of 2040 and are designed for operation with sustainable energy. The first concept is propelled with advanced turboprop engines fuelled by synthetic kerosene. The second concept
openaire   +1 more source

Multi-Disciplinary Design of a Regional Hybrid Aircraft With Different Green Solutions [PDF]

This study presents an advanced Multidisciplinary Design Optimization (MDO) tailored for the design of next-generation green aircraft, integrating innovative propulsion system.
Franco Mastroddi, Riccardo M. Galassi, Matteo Blandino, Luca Pustina   +3 more
core  

The physical and synoptic‐dynamical differences between warm days, hot days, and heatwaves during summer in Victoria, Australia

Quarterly Journal of the Royal Meteorological Society, EarlyView.
During the day, there is composite mean cold advection in the boundary layer on warm days (WDs), hot days (HDs) and heatwaves (HWs). There is weaker surface‐sensible heating on HDs and HWs. A nocturnal jet advects warm air on HDs and HWs. There is a strong and slow‐moving upper‐level anticyclone on HWs.
Qinuo Huang, Michael J. Reeder, Christian Jakob, Malcolm J. King   +3 more
wiley   +1 more source