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primary topic: Mathematical modeling of subsonic two-phase condensation flow around an aircraft under various flight conditions

Mathematical modeling of subsonic two-phase condensation flow around an aircraft under various flight conditions
type: AcademicArticle
type: Article
abstract: The present study investigates the process of condensation of water vapour to water liquid substance in highly convective flow conditions. An aircraft (model) geometry was chosen to simulate the condensation effects, since this application is of real interest worldwide. The flow is considered turbulent, subsonic and compressible at high Reynolds number. The contribution of turbulence effects is accounted for by the Spalart-Allmaras model, which appears suitable for such type applications. The study of condensation is based on a mixture two- phase model, which allows the substances to be interpenetrating, while following the economical single-fluid approach. Furthermore, both phases may move at different velocities (slip velocity) in a manner that is described by conservation equations. Results are presented for several flight conditions, concerning the flow Mach number and the ambient air humidity levels. Since the condensation effects are investigated on an aircraft configuration, emphasis has been given to the liquid mass-fraction distribution in several critical areas, where considerable formation of liquid droplets is observed. Results show that for humidity levels higher than 0.8, high liquid concentration areas are indicated onto the rear part of the wings near their roots. For lower relative humidity values, those areas are situated at the rear part of the cockpit. Attention is focused on the dispersion of the condensation cloud. Results are presented, by means of grayscale figures and numerical diagrams, and appear plausible.
date: 2007
volume: 8
issue: 1
is part of: JOURNAL OF COMPUTATIONAL AND APPLIED MECHANICS
status: peerReviewed
status: published
author list: authors
type: EPrint
type: ArticleEPrint
is part of: repository
has document: Mathematical modeling of subsonic two-phase condensation flow around an aircraft under various flight conditions (Text)
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has published: Mathematical modeling of subsonic two-phase condensation flow around an aircraft under various flight conditions (Text)
has document: Mathematical modeling of subsonic two-phase condensation flow around an aircraft under various flight conditions (Other)
subject: QC01 Mechanics / mechanika
subject: QD Chemistry / kémia

Mathematical modeling of subsonic two-phase condensation flow around an aircraft under various flight conditions (Text)
type: Document
has file: 8-1-KarabelasMiKTeX2007V8N1.pdf
has part: 8-1-KarabelasMiKTeX2007V8N1.pdf

JOURNAL OF COMPUTATIONAL AND APPLIED MECHANICS
type: Collection
issn: 15862070

Nikolaos C. Markatos
type: Person
given name: Nikolaos C.
family name: Markatos

Stavros J. Karabelas
type: Person
given name: Stavros J.
family name: Karabelas

Journal of Computational and Applied Mechanics szerkesztősége Kiadók / Önkéntes
type: Organization

Mathematical modeling of subsonic two-phase condensation flow around an aircraft under various flight conditions (Other)
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Mathematical modeling of subsonic two-phase condensation flow around an aircraft under various flight conditions (Other)
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Mathematical modeling of subsonic two-phase condensation flow around an aircraft under various flight conditions (Other)
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Mathematical modeling of subsonic two-phase condensation flow around an aircraft under various flight conditions (Other)
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Mathematical modeling of subsonic two-phase condensation flow around an aircraft under various flight conditions (Other)
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primary topic: Mathematical modeling of subsonic two-phase condensation flow around an aircraft under various flight conditions

QC01 Mechanics / mechanika
type: Concept

QD Chemistry / kémia
type: Concept