On the applicability of minimum channel length criterion for roll-waves in mud-flows

On the applicability of minimum channel length criterion for roll-waves in mud-flows

The paper addresses the prediction of roll-waves occurrence in mud-flows. The spatial growth of a point-wise disturbance is analytically described, based on the linearized flow model of a Herschel and Bulkley fluid, in the neighborhood of an initial uniform base condition. The theoretical achievemen...

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Bibliographic Details
Main Authors: Di Cristo Cristiana, Iervolino Michele, Vacca Andrea
Format: Article
Language:English
Published: Sciendo 2013-12-01
Series:Journal of Hydrology and Hydromechanics
Subjects:
herschel and bulkley
mud-flows
stability analysis
roll-waves
Online Access:https://doi.org/10.2478/johh-2013-0036
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spelling doaj-066ca17638e64275aaf99748cf3225f52021-09-06T19:41:39ZengSciendoJournal of Hydrology and Hydromechanics0042-790X2013-12-0161428629210.2478/johh-2013-0036On the applicability of minimum channel length criterion for roll-waves in mud-flowsDi Cristo Cristiana0Iervolino Michele1Vacca Andrea2Dipartimento di Ingegneria Civile e Meccanica – Università di Cassino e del Lazio Meridionale, Via Di Biasio 43, 03043 Cassino (FR), ItalyDipartimento di Ingegneria Civile, Design, Edilizia, Ambiente, Seconda Università di Napoli, Via Roma 29, 81031 Aversa (CE), ItalyDipartimento di Ingegneria Civile, Design, Edilizia, Ambiente, Seconda Università di Napoli, Via Roma 29, 81031 Aversa (CE), ItalyThe paper addresses the prediction of roll-waves occurrence in mud-flows. The spatial growth of a point-wise disturbance is analytically described, based on the linearized flow model of a Herschel and Bulkley fluid, in the neighborhood of an initial uniform base condition. The theoretical achievements allow to generalize to mud-flows the minimum channel criterion commonly used for the prediction of roll-waves in clear-water. The applicability of the criterion is discussed through the comparison with literature laboratory data concerning unstable flows without rollwaves.https://doi.org/10.2478/johh-2013-0036herschel and bulkleymud-flowsstability analysisroll-waves
collection DOAJ
language English
format Article
sources DOAJ
author Di Cristo Cristiana
Iervolino Michele
Vacca Andrea
spellingShingle Di Cristo Cristiana
Iervolino Michele
Vacca Andrea
On the applicability of minimum channel length criterion for roll-waves in mud-flows
Journal of Hydrology and Hydromechanics
herschel and bulkley
mud-flows
stability analysis
roll-waves
author_facet Di Cristo Cristiana
Iervolino Michele
Vacca Andrea
author_sort Di Cristo Cristiana
title On the applicability of minimum channel length criterion for roll-waves in mud-flows
title_short On the applicability of minimum channel length criterion for roll-waves in mud-flows
title_full On the applicability of minimum channel length criterion for roll-waves in mud-flows
title_fullStr On the applicability of minimum channel length criterion for roll-waves in mud-flows
title_full_unstemmed On the applicability of minimum channel length criterion for roll-waves in mud-flows
title_sort on the applicability of minimum channel length criterion for roll-waves in mud-flows
publisher Sciendo
series Journal of Hydrology and Hydromechanics
issn 0042-790X
publishDate 2013-12-01
description The paper addresses the prediction of roll-waves occurrence in mud-flows. The spatial growth of a point-wise disturbance is analytically described, based on the linearized flow model of a Herschel and Bulkley fluid, in the neighborhood of an initial uniform base condition. The theoretical achievements allow to generalize to mud-flows the minimum channel criterion commonly used for the prediction of roll-waves in clear-water. The applicability of the criterion is discussed through the comparison with literature laboratory data concerning unstable flows without rollwaves.
topic herschel and bulkley
mud-flows
stability analysis
roll-waves
url https://doi.org/10.2478/johh-2013-0036
work_keys_str_mv AT dicristocristiana ontheapplicabilityofminimumchannellengthcriterionforrollwavesinmudflows
AT iervolinomichele ontheapplicabilityofminimumchannellengthcriterionforrollwavesinmudflows
AT vaccaandrea ontheapplicabilityofminimumchannellengthcriterionforrollwavesinmudflows
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