Indirect determination of the turbulent velocity profile origin
Result description
The vertical co-ordinate of the logarithmic turbulent velocity profile origin yo is an important characteristic of turbulent flow in conduit with rough walls. Because length and height of saltation depend strongly on the position of the velocity profileorigin, it can be determined by comparison of experimental values of particle saltation and their numerical simulation. The parameter y0 can be expressed as function of saltation length or height, or the boundary Reynolds number, and it was shown that itgrows with increasing bed roughness and shear velocity.
Keywords
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
Indirect determination of the turbulent velocity profile origin
Original language description
The vertical co-ordinate of the logarithmic turbulent velocity profile origin yo is an important characteristic of turbulent flow in conduit with rough walls. Because length and height of saltation depend strongly on the position of the velocity profileorigin, it can be determined by comparison of experimental values of particle saltation and their numerical simulation. The parameter y0 can be expressed as function of saltation length or height, or the boundary Reynolds number, and it was shown that itgrows with increasing bed roughness and shear velocity.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
BK - Liquid mechanics
OECD FORD branch
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Result continuities
Project
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Matematičeskije metody v technike i technologijach MMTT-25
ISBN
978-5-7433-2386-9
ISSN
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e-ISSN
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Number of pages
3
Pages from-to
47-49
Publisher name
Volgogradskij gosudarstvennyj techničeskij universitet
Place of publication
Volgograd
Event location
Volgograd
Event date
May 29, 2012
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
2012