Standard

Fin Shape Design for Stable Film-Wise Vapor Condensation in Microgravity. / Barakhovskaia, Ella; Marchuk, Igor.

в: Microgravity Science and Technology, Том 34, № 1, 8, 02.2022.

Результаты исследований: Научные публикации в периодических изданияхстатьяРецензирование

Harvard

Barakhovskaia, E & Marchuk, I 2022, 'Fin Shape Design for Stable Film-Wise Vapor Condensation in Microgravity', Microgravity Science and Technology, Том. 34, № 1, 8. https://doi.org/10.1007/s12217-021-09918-z

APA

Vancouver

Barakhovskaia E, Marchuk I. Fin Shape Design for Stable Film-Wise Vapor Condensation in Microgravity. Microgravity Science and Technology. 2022 февр.;34(1):8. doi: 10.1007/s12217-021-09918-z

Author

Barakhovskaia, Ella ; Marchuk, Igor. / Fin Shape Design for Stable Film-Wise Vapor Condensation in Microgravity. в: Microgravity Science and Technology. 2022 ; Том 34, № 1.

BibTeX

@article{8e6f5d14ea564e11ab74f5808f74981c,
title = "Fin Shape Design for Stable Film-Wise Vapor Condensation in Microgravity",
abstract = "Under microgravity conditions, the dynamics of a thin condensate film on a curved surface is determined by the capillary pressure gradient proportional to the mean surface curvature gradient. A one-parameter family of axisymmetric surfaces is found for which the gradient of mean curvature is constant. The dimensionless equation for rotation angle of the generatrix curve is found. There is a single generatrix curve for an axisymmetric surface for which the rotation angle at the inflexion point assumes a predetermined value. Due to the constant gradient of capillary pressure on such a surface, a stable condensate flow is ensured under microgravity conditions. A similar curve for the planar case, known as the clothoid or {"}Cornu spiral{"}, is used to find the best transition curve to get the smoothest traffic on the roads. A numerical model for film-wise vapor condensation on such surface has been built. The film thickness distribution and mass flow rate of the HFE-7100 along the cooled curvilinear fin have been calculated. Calculations were done both for terrestrial gravity and microgravity. This work proposes a particular surface shape, found numerically, for conducting experiments on the pure vapor condensation under microgravity conditions in Parabolic Flight Campaigns and onboard the International Space Station.",
keywords = "Film-wise condensation, Finning, Mean curvature, Microgravity, Numerical modelling, Surface tension",
author = "Ella Barakhovskaia and Igor Marchuk",
note = "Funding Information: This work was carried out under state contract with IT SB RAS (121031200084-2) Publisher Copyright: {\textcopyright} 2021, The Author(s), under exclusive licence to Springer Nature B.V.",
year = "2022",
month = feb,
doi = "10.1007/s12217-021-09918-z",
language = "English",
volume = "34",
journal = "Microgravity Science and Technology",
issn = "0938-0108",
publisher = "Springer Netherlands",
number = "1",

}

RIS

TY - JOUR

T1 - Fin Shape Design for Stable Film-Wise Vapor Condensation in Microgravity

AU - Barakhovskaia, Ella

AU - Marchuk, Igor

N1 - Funding Information: This work was carried out under state contract with IT SB RAS (121031200084-2) Publisher Copyright: © 2021, The Author(s), under exclusive licence to Springer Nature B.V.

PY - 2022/2

Y1 - 2022/2

N2 - Under microgravity conditions, the dynamics of a thin condensate film on a curved surface is determined by the capillary pressure gradient proportional to the mean surface curvature gradient. A one-parameter family of axisymmetric surfaces is found for which the gradient of mean curvature is constant. The dimensionless equation for rotation angle of the generatrix curve is found. There is a single generatrix curve for an axisymmetric surface for which the rotation angle at the inflexion point assumes a predetermined value. Due to the constant gradient of capillary pressure on such a surface, a stable condensate flow is ensured under microgravity conditions. A similar curve for the planar case, known as the clothoid or "Cornu spiral", is used to find the best transition curve to get the smoothest traffic on the roads. A numerical model for film-wise vapor condensation on such surface has been built. The film thickness distribution and mass flow rate of the HFE-7100 along the cooled curvilinear fin have been calculated. Calculations were done both for terrestrial gravity and microgravity. This work proposes a particular surface shape, found numerically, for conducting experiments on the pure vapor condensation under microgravity conditions in Parabolic Flight Campaigns and onboard the International Space Station.

AB - Under microgravity conditions, the dynamics of a thin condensate film on a curved surface is determined by the capillary pressure gradient proportional to the mean surface curvature gradient. A one-parameter family of axisymmetric surfaces is found for which the gradient of mean curvature is constant. The dimensionless equation for rotation angle of the generatrix curve is found. There is a single generatrix curve for an axisymmetric surface for which the rotation angle at the inflexion point assumes a predetermined value. Due to the constant gradient of capillary pressure on such a surface, a stable condensate flow is ensured under microgravity conditions. A similar curve for the planar case, known as the clothoid or "Cornu spiral", is used to find the best transition curve to get the smoothest traffic on the roads. A numerical model for film-wise vapor condensation on such surface has been built. The film thickness distribution and mass flow rate of the HFE-7100 along the cooled curvilinear fin have been calculated. Calculations were done both for terrestrial gravity and microgravity. This work proposes a particular surface shape, found numerically, for conducting experiments on the pure vapor condensation under microgravity conditions in Parabolic Flight Campaigns and onboard the International Space Station.

KW - Film-wise condensation

KW - Finning

KW - Mean curvature

KW - Microgravity

KW - Numerical modelling

KW - Surface tension

UR - http://www.scopus.com/inward/record.url?scp=85123495417&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/038a6d3c-aaa8-367d-9e09-c1c58d1f48c1/

U2 - 10.1007/s12217-021-09918-z

DO - 10.1007/s12217-021-09918-z

M3 - Article

AN - SCOPUS:85123495417

VL - 34

JO - Microgravity Science and Technology

JF - Microgravity Science and Technology

SN - 0938-0108

IS - 1

M1 - 8

ER -

ID: 35379135