Título:
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Assessment of the feasible CTA windows for efficient spacing with energy-neutral CDO
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Autor/a:
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Dalmau Codina, Ramon; Prats Menéndez, Xavier
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Otros autores:
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Universitat Politècnica de Catalunya. Departament de Física; Universitat Politècnica de Catalunya. ICARUS - Intelligent Communications and Avionics for Robust Unmanned Aerial Systems |
Abstract:
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Continuous descent operations (CDO) with con-
trolled times of arrival (CTA) at one or several metering fixes
could enable environmentally friendly procedures at the same
time that terminal airspace capacity is not compromised. This
paper focuses on CTA updates once the descent has been already
initiated, assessing the feasible CTA window (and associated fuel
consumption) of CDO requiring neither thrust nor speed-brake
usage along the whole descent (i.e. energy modulation through
elevator control is used to achieve different times of arrival at
the metering fixes). A multiphase optimal control problem is
formulated and solved by means of numerical methods. The
minimum and maximum times of arrival at the initial approach
fix (IAF) and final approach point (FAP) of an hypothetical
scenario are computed for an Airbus A320 descent and starting
from a wide range of initial conditions. Results show CTA
windows up to 4 minutes at the IAF and 70 seconds at the FAP.
It has been also found that the feasible CTA window is affected
by many factors, such as a previous CTA or the position of
the top of descent. Moreover, minimum fuel trajectories almost
correspond to those trajectories that minimise the time of arrival
at the metering fix for the given initial condition |
Abstract:
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Peer Reviewed |
Materia(s):
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-Àrees temàtiques de la UPC::Aeronàutica i espai::Navegació aèria -Navigation (Aeronautics) -Navegació aèria |
Derechos:
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http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
Tipo de documento:
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Artículo - Versión publicada Objeto de conferencia |
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