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On parametric representation of the Newton's aerodynamic problem

Newton's problem of finding the surface shape of a rotation body based on the condition of minimal resistance of the body when it moves in a rarefied medium is discussed. The problem is formulated in the form of a classical isoperimetric problem in calculus of variations. The exact solution is...

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Autores principales: Barsuk, Alexandr A., Paladi, Florentin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10248267/
https://www.ncbi.nlm.nih.gov/pubmed/37303526
http://dx.doi.org/10.1016/j.heliyon.2023.e16721
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author Barsuk, Alexandr A.
Paladi, Florentin
author_facet Barsuk, Alexandr A.
Paladi, Florentin
author_sort Barsuk, Alexandr A.
collection PubMed
description Newton's problem of finding the surface shape of a rotation body based on the condition of minimal resistance of the body when it moves in a rarefied medium is discussed. The problem is formulated in the form of a classical isoperimetric problem in calculus of variations. The exact solution is given in the class of piecewise differentiable functions. The numerical results of specific calculations of the functional for cone and hemisphere are presented. We prove that the optimization effect is significant by comparison of the results for cone and hemisphere with the value of the optimized functional for the optimal contour.
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spelling pubmed-102482672023-06-09 On parametric representation of the Newton's aerodynamic problem Barsuk, Alexandr A. Paladi, Florentin Heliyon Research Article Newton's problem of finding the surface shape of a rotation body based on the condition of minimal resistance of the body when it moves in a rarefied medium is discussed. The problem is formulated in the form of a classical isoperimetric problem in calculus of variations. The exact solution is given in the class of piecewise differentiable functions. The numerical results of specific calculations of the functional for cone and hemisphere are presented. We prove that the optimization effect is significant by comparison of the results for cone and hemisphere with the value of the optimized functional for the optimal contour. Elsevier 2023-05-29 /pmc/articles/PMC10248267/ /pubmed/37303526 http://dx.doi.org/10.1016/j.heliyon.2023.e16721 Text en © 2023 The Authors https://creativecommons.org/licenses/by/4.0/This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Research Article
Barsuk, Alexandr A.
Paladi, Florentin
On parametric representation of the Newton's aerodynamic problem
title On parametric representation of the Newton's aerodynamic problem
title_full On parametric representation of the Newton's aerodynamic problem
title_fullStr On parametric representation of the Newton's aerodynamic problem
title_full_unstemmed On parametric representation of the Newton's aerodynamic problem
title_short On parametric representation of the Newton's aerodynamic problem
title_sort on parametric representation of the newton's aerodynamic problem
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10248267/
https://www.ncbi.nlm.nih.gov/pubmed/37303526
http://dx.doi.org/10.1016/j.heliyon.2023.e16721
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