Study of minimal effective reefing ratio based on an empirical formula and fluid-structure-interaction method

Study of minimal effective reefing ratio based on an empirical formula and fluid-structure-interaction method

The reefing ratio for the first stage of a parachute limits the reefing ratio for the subsequent stages, so its minimal effective value is very important. In this paper, an empirical formula is derived to calculate the minimal effective reefing ratio. The empirical parameters are obtained by the ar...

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Bibliographic Details
Main Authors: Xiaoshun Zhao, Xue Yang, Li Yu, Xin Liu, Jingjing Wang
Format: Article
Language:English
Published: Vilnius Gediminas Technical University 2018-12-01
Series:Aviation
Subjects:
reefed parachute system
fluid-structure interaction
reefing ratio
empirical formula
numerical simulation
Online Access:https://journals.vgtu.lt/index.php/Aviation/article/view/6804
id doaj-447fb29577e246b694d78c409a833f37
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spelling doaj-447fb29577e246b694d78c409a833f372021-07-02T12:26:02ZengVilnius Gediminas Technical UniversityAviation1648-77881822-41802018-12-0122410.3846/aviation.2018.6804Study of minimal effective reefing ratio based on an empirical formula and fluid-structure-interaction methodXiaoshun Zhao0Xue Yang1Li Yu2Xin Liu3Jingjing Wang4College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, ChinaCollege of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, ChinaCollege of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, ChinaCollege of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, ChinaCollege of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China The reefing ratio for the first stage of a parachute limits the reefing ratio for the subsequent stages, so its minimal effective value is very important. In this paper, an empirical formula is derived to calculate the minimal effective reefing ratio. The empirical parameters are obtained by the arbitrary Lagrangian–Eulerian/fluid–structure interaction (ALE/FSI) method. By using the FSI method, the typical flow and structure fields of effective and ineffective reefed parachutes are revealed. The numerical results including drag characteristics and final shape are very consistent with wind tunnel tests. The curves of the empirical parameters with reefing ratios are obtained. The minimal effective reefing ratio obtained by the empirical formula is consistent with that of the numerical results, which shows that the empirical formula has high accuracy. https://journals.vgtu.lt/index.php/Aviation/article/view/6804reefed parachute systemfluid-structure interactionreefing ratioempirical formulanumerical simulation
collection DOAJ
language English
format Article
sources DOAJ
author Xiaoshun Zhao
Xue Yang
Li Yu
Xin Liu
Jingjing Wang
spellingShingle Xiaoshun Zhao
Xue Yang
Li Yu
Xin Liu
Jingjing Wang
Study of minimal effective reefing ratio based on an empirical formula and fluid-structure-interaction method
Aviation
reefed parachute system
fluid-structure interaction
reefing ratio
empirical formula
numerical simulation
author_facet Xiaoshun Zhao
Xue Yang
Li Yu
Xin Liu
Jingjing Wang
author_sort Xiaoshun Zhao
title Study of minimal effective reefing ratio based on an empirical formula and fluid-structure-interaction method
title_short Study of minimal effective reefing ratio based on an empirical formula and fluid-structure-interaction method
title_full Study of minimal effective reefing ratio based on an empirical formula and fluid-structure-interaction method
title_fullStr Study of minimal effective reefing ratio based on an empirical formula and fluid-structure-interaction method
title_full_unstemmed Study of minimal effective reefing ratio based on an empirical formula and fluid-structure-interaction method
title_sort study of minimal effective reefing ratio based on an empirical formula and fluid-structure-interaction method
publisher Vilnius Gediminas Technical University
series Aviation
issn 1648-7788
1822-4180
publishDate 2018-12-01
description The reefing ratio for the first stage of a parachute limits the reefing ratio for the subsequent stages, so its minimal effective value is very important. In this paper, an empirical formula is derived to calculate the minimal effective reefing ratio. The empirical parameters are obtained by the arbitrary Lagrangian–Eulerian/fluid–structure interaction (ALE/FSI) method. By using the FSI method, the typical flow and structure fields of effective and ineffective reefed parachutes are revealed. The numerical results including drag characteristics and final shape are very consistent with wind tunnel tests. The curves of the empirical parameters with reefing ratios are obtained. The minimal effective reefing ratio obtained by the empirical formula is consistent with that of the numerical results, which shows that the empirical formula has high accuracy.
topic reefed parachute system
fluid-structure interaction
reefing ratio
empirical formula
numerical simulation
url https://journals.vgtu.lt/index.php/Aviation/article/view/6804
work_keys_str_mv AT xiaoshunzhao studyofminimaleffectivereefingratiobasedonanempiricalformulaandfluidstructureinteractionmethod
AT xueyang studyofminimaleffectivereefingratiobasedonanempiricalformulaandfluidstructureinteractionmethod
AT liyu studyofminimaleffectivereefingratiobasedonanempiricalformulaandfluidstructureinteractionmethod
AT xinliu studyofminimaleffectivereefingratiobasedonanempiricalformulaandfluidstructureinteractionmethod
AT jingjingwang studyofminimaleffectivereefingratiobasedonanempiricalformulaandfluidstructureinteractionmethod
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