Steady flows and unsteady ones in pipes: models link and quasistationarity hypothesis

Steady flows and unsteady ones in pipes: models link and quasistationarity hypothesis

Models of unsteady flows and stationary ones in pipes and the requirements of their joining are considered. In this view, the problem of the description of a friction at a non-stationary flow is considered. So-called “quasi-stationarity hypothesis” is discussed. The formula for a friction coefficien...

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Main Author: Tarasevich Vladimir V.
Format: Article
Language:English
Published: EDP Sciences 2019-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/28/e3sconf_mmmaosdphs18_01007.pdf
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spelling doaj-4326bd0ece9f4e5bacc249f1f67e21d82021-02-02T00:18:51ZengEDP SciencesE3S Web of Conferences2267-12422019-01-011020100710.1051/e3sconf/201910201007e3sconf_mmmaosdphs18_01007Steady flows and unsteady ones in pipes: models link and quasistationarity hypothesisTarasevich Vladimir V.0NB IWEP SB RASModels of unsteady flows and stationary ones in pipes and the requirements of their joining are considered. In this view, the problem of the description of a friction at a non-stationary flow is considered. So-called “quasi-stationarity hypothesis” is discussed. The formula for a friction coefficient generalized on a non-stationary case is offered. It is concluded that additional losses at the non-stationary mode are caused by energy consumptions for reorganization of speed chart.https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/28/e3sconf_mmmaosdphs18_01007.pdf
collection DOAJ
language English
format Article
sources DOAJ
author Tarasevich Vladimir V.
spellingShingle Tarasevich Vladimir V.
Steady flows and unsteady ones in pipes: models link and quasistationarity hypothesis
E3S Web of Conferences
author_facet Tarasevich Vladimir V.
author_sort Tarasevich Vladimir V.
title Steady flows and unsteady ones in pipes: models link and quasistationarity hypothesis
title_short Steady flows and unsteady ones in pipes: models link and quasistationarity hypothesis
title_full Steady flows and unsteady ones in pipes: models link and quasistationarity hypothesis
title_fullStr Steady flows and unsteady ones in pipes: models link and quasistationarity hypothesis
title_full_unstemmed Steady flows and unsteady ones in pipes: models link and quasistationarity hypothesis
title_sort steady flows and unsteady ones in pipes: models link and quasistationarity hypothesis
publisher EDP Sciences
series E3S Web of Conferences
issn 2267-1242
publishDate 2019-01-01
description Models of unsteady flows and stationary ones in pipes and the requirements of their joining are considered. In this view, the problem of the description of a friction at a non-stationary flow is considered. So-called “quasi-stationarity hypothesis” is discussed. The formula for a friction coefficient generalized on a non-stationary case is offered. It is concluded that additional losses at the non-stationary mode are caused by energy consumptions for reorganization of speed chart.
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/28/e3sconf_mmmaosdphs18_01007.pdf
work_keys_str_mv AT tarasevichvladimirv steadyflowsandunsteadyonesinpipesmodelslinkandquasistationarityhypothesis
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