2D velocity-field analysis using triple decomposition of motion
Result description
A straightforward application of the new triple decomposition of the local relative motion near a point to 2D velocity fields is presented. Unlike the Cauchy-Stokes double decomposition of motion into a pure straining motion and a rigid-body rotation thetriple decomposition of motion aims, moreover, at the extraction of an effective pure shearing motion. It results in a more detailed flow description as the third term is responsible for a specific portion of vorticity labelled "shear vorticity" and fora specific portion of strain rate labelled "shear strain rate"
Keywords
decomposition of motiondecomposition of vorticitydecomposition of strain rate
The result's identifiers
Result code in IS VaVaI
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
2D velocity-field analysis using triple decomposition of motion
Original language description
A straightforward application of the new triple decomposition of the local relative motion near a point to 2D velocity fields is presented. Unlike the Cauchy-Stokes double decomposition of motion into a pure straining motion and a rigid-body rotation thetriple decomposition of motion aims, moreover, at the extraction of an effective pure shearing motion. It results in a more detailed flow description as the third term is responsible for a specific portion of vorticity labelled "shear vorticity" and fora specific portion of strain rate labelled "shear strain rate"
Czech name
Analýza 2D rychlostního pole užitím trojné dekompozice pohybu
Czech description
Je prezentována přímá aplikace nové trojné dekompozice lokálního relativního pohybu v okolí bodu na 2D rychlostní pole. Narozdíl od Cauchyovy-Stokesovy dvojné dekompozice pohybu na rotaci jako tuhé těleso a čistou deformaci trojná dekompozice pohybu má za cíl extrahovat navíc efektivní smykový pohyb. Tím poskytuje detailnější popis toku, protože třetí člen odpovídá za specifickou část vířivosti označovanou jako "smyková vířivost" a za specifickou část rychlosti deformace označovanou jako "smyková rychlost deformace"
Classification
Type
D - Article in proceedings
CEP classification
BK - Liquid mechanics
OECD FORD branch
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Result continuities
Project
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2004
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of the Fifteenth Australasian Fluid Mechanics Conference
ISBN
1-864-87695-6
ISSN
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e-ISSN
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Number of pages
4
Pages from-to
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Publisher name
The University of Sydney
Place of publication
Sydney
Event location
Sydney
Event date
Dec 13, 2004
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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Result type
D - Article in proceedings
CEP
BK - Liquid mechanics
Year of implementation
2004