Drag-shield drop tower residual acceleration optimisation

Figueroa, Antonio and Sorribes Palmer, Félix and Fernández de Pierola, M. and Durán, J. (2016). Drag-shield drop tower residual acceleration optimisation. "European Journal of Physics", v. 37 (n. 4); pp.. ISSN 0143-0807. https://doi.org/10.1088/0143-0807/37/4/045805.

Description

Title: Drag-shield drop tower residual acceleration optimisation
Author/s:
  • Figueroa, Antonio
  • Sorribes Palmer, Félix
  • Fernández de Pierola, M.
  • Durán, J.
Item Type: Article
Título de Revista/Publicación: European Journal of Physics
Date: 2016
ISSN: 0143-0807
Volume: 37
Subjects:
Freetext Keywords: Microgravity, drop tower, aerodynamics, buoyancy, drag-shield, educational.
Faculty: Instituto de Microgravedad Ignacio Da Riva (UPM)
Department: Aeronaves y Vehículos Espaciales
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Among the forces that appear in drop towers for microgravity experiments, aerodynamic drag plays a crucial role in the residual acceleration. Buoyancy can also be critical, especially at the first instances of the drop when the low speed of the experimental platform makes the aerodynamic drag small compared with buoyancy. In this paper the perturbation method is used to formulate an analytical model which has been validated experimentally. The experimental test was conduced by undergraduate students of aerospace engineering at the Institute of Microgravity ‘Ignacio Da Riva’ of the Technical University of Madrid (IDR/UPM) microgravity tower. The test helped students to understand the influence of the buoyancy on the residual acceleration of the experiment platform. The objective of the students was to understand the physical process during the drop, identify the main parameters involved in the residual acceleration and determine the most suitable configuration for the next drop tower proposed to be built at UPM.

More information

Item ID: 48082
DC Identifier: http://oa.upm.es/48082/
OAI Identifier: oai:oa.upm.es:48082
DOI: 10.1088/0143-0807/37/4/045805
Official URL: http://iopscience.iop.org/article/10.1088/0143-0807/37/4/045805
Deposited by: Memoria Investigacion
Deposited on: 05 Feb 2018 09:35
Last Modified: 05 Feb 2018 09:35
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