Results 11 to 20 of about 617,338 (368)

Effect of air permeability on stability of supersonic parachute

open access: yesAviation, 2021
A compressible air permeability model is developed to simulate the aerodynamic performance of the supersonic porous canopy. And a single-degree-of-freedom model is applied to analyse the static stability of the parachute.
Xue Yang
doaj   +1 more source

Modelling the helicopter rotor aerodynamics at forward flight with free wake model and URANS method

open access: yesAviation, 2020
The presented work is dedicated to the numerical study of the aerodynamic characteristics of the helicopter rotor. Two approaches to modeling of the rotor are applied: the free wake model developed by the Authors with using steady airfoil characteristics
Yuri Ignatkin   +3 more
doaj   +1 more source

Evaluation of wing structures at the conceptual stage of transport category aircraft projects

open access: yesAviation, 2022
The purpose of this research is to improve the approach for evaluating of new design solutions based on sensitivity analysis of takeoff mass (SFM) to initial changes in the basic project.
Anatolii Kretov, Dmytro Tiniakov
doaj   +1 more source

Systematic review of passenger demand forecasting in aviation industry

open access: yesMultimedia tools and applications, 2023
Forecasting aviation demand is a significant challenge in the airline industry. The design of commercial aviation networks heavily relies on reliable travel demand predictions.
Renju Aleyamma Zachariah   +2 more
semanticscholar   +1 more source

A method for automatic airport operation counts using crowd-sourced ADS-B data

open access: yesAviation, 2022
Airports are tasked with counting and reporting their operations at least yearly. The counts are used at the local and national level to schedule maintenance, for research, and to receive funds, making their accuracy important. Historically, methods for
Nicoletta Fala   +2 more
doaj   +1 more source

Comparing fuel-optimal and shortest paths with obstacle avoidance

open access: yesAviation, 2022
This paper presents a comparison of fuel-optimal and shortest paths of an unmanned combat aerial vehicle (UCAV) with obstacle avoidance. A nonlinear constrained optimization algorithm is applied to obtain the optimal paths. An initial value problem (IVP)
Ibrahim H. Cihan
doaj   +1 more source

Retraction notice to “Corrected gyrocompass synthesis as a system with changeable structure for aviation gravimetric system with piezoelectric gravimeter” [Aviation 18(3), 134–140, 2014]

open access: yesAviation, 2022
The following article is being retracted from publication in Aviation Journal: Corrected gyrocompass synthesis as a system with changeable structure for aviation gravimetric system with piezoelectric gravimeter, by Elena Nikolaevna Bezvesilnaya and ...
Elena Nikolaevna Bezvesilnaya   +1 more
doaj   +1 more source

Use of Sustainable Fuels in Aviation—A Review

open access: yesEnergies, 2022
As the push for carbon-neutral transport continues, the aviation sector is facing increasing pressure to reduce its carbon footprint. Furthermore, commercial air traffic is expected to resume the continuous growth experienced until the pandemic ...
E. Cabrera, João M. Melo de Sousa
semanticscholar   +1 more source

Experimental analysis of ultralight aircraft tyre behaviour under aircraft landing phase

open access: yesAviation, 2022
The aim of the research described in this paper is analysis of the deformation of the aircraft tyre subjected to static load. Based on the results of experimental tests with a different value of inflation pressure, favorable pressure conditions for use ...
Andrzej Kubit   +3 more
doaj   +1 more source

A Review on Weather Impact on Aviation Operations: Visibility, Wind, Precipitation, Icing

open access: yesJournal of Airline Operations and Aviation Management, 2023
Meteorological conditions affect aviation, marine, and land transportation, and play an important role in aviation accidents and operations.
I. Gultepe
semanticscholar   +1 more source

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