Using a modified Lane’s relation in local bed scouring studies in aluvial bed
Numerous approaches to the local scour studies have been developed. The research aim was to verify modified Lane’s relation in scope of local scouring phenomenon basing on laboratory studies results. Original Lane’s relation [1955] is applicable in dynamic balance conditions in alluvial rivers conte...
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University of Agriculture in Krakow
2016-12-01
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| Series: | Acta Scientiarum Polonorum. Formatio Circumiectus |
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| Online Access: | http://www.formatiocircumiectus.actapol.net/pub/15_4_209.pdf |
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| author | Marta Kiraga Zbigniew Popek |
| author_facet | Marta Kiraga Zbigniew Popek |
| author_sort | Marta Kiraga |
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| description | Numerous approaches to the local scour studies have been developed. The research aim was to verify modified Lane’s relation in scope of local scouring phenomenon basing on laboratory studies results. Original Lane’s relation [1955] is applicable in dynamic balance conditions in alluvial rivers context. Original form is not an equation, but a qualitative expression which cannot be directly used to estimate the influence of a change in one parameter on the magnitude of others. Modified version allows transforming it into equation for dynamic equilibrium conditions in steady flow assumption and gives a new opportunity to this principle application. Two physical models of laboratory channel with rectangular cross-sections and glass panels have been constructed, with totally or partially sandy bottom. Model I assumed non-continual sediment transport, because of model construction, i.e. the solid bottom transforms into sandy bottom in the intake part. Model II assumed water structure (the weir with four slots) introducing into laboratory channel with solid bottom in its region, whereas the rest of channel was filled with sand above and below structure, i.e. continuity of sediment transport was assured. Results of research confirmed modified Lane’s relation usability in scope of local scouring phenomenon description in dynamic equilibrium conditions of alluvial sandy bed. |
| format | Article |
| id | doaj-art-84f5785a858842b692f883be31dbde59 |
| institution | Kabale University |
| issn | 1644-0765 |
| language | English |
| publishDate | 2016-12-01 |
| publisher | University of Agriculture in Krakow |
| record_format | Article |
| series | Acta Scientiarum Polonorum. Formatio Circumiectus |
| spelling | doaj-art-84f5785a858842b692f883be31dbde592025-01-02T13:28:56ZengUniversity of Agriculture in KrakowActa Scientiarum Polonorum. Formatio Circumiectus1644-07652016-12-0115420922610.15576/ASP.FC/2016.15.4.209Using a modified Lane’s relation in local bed scouring studies in aluvial bedMarta Kiraga0Zbigniew Popek1Warsaw University of Life Sciences – SGGW, Water Engineering Division, Department of Hydraulic Engineering,Warsaw University of Life Sciences – SGGW, Water Engineering Division, Department of Hydraulic Engineering,Numerous approaches to the local scour studies have been developed. The research aim was to verify modified Lane’s relation in scope of local scouring phenomenon basing on laboratory studies results. Original Lane’s relation [1955] is applicable in dynamic balance conditions in alluvial rivers context. Original form is not an equation, but a qualitative expression which cannot be directly used to estimate the influence of a change in one parameter on the magnitude of others. Modified version allows transforming it into equation for dynamic equilibrium conditions in steady flow assumption and gives a new opportunity to this principle application. Two physical models of laboratory channel with rectangular cross-sections and glass panels have been constructed, with totally or partially sandy bottom. Model I assumed non-continual sediment transport, because of model construction, i.e. the solid bottom transforms into sandy bottom in the intake part. Model II assumed water structure (the weir with four slots) introducing into laboratory channel with solid bottom in its region, whereas the rest of channel was filled with sand above and below structure, i.e. continuity of sediment transport was assured. Results of research confirmed modified Lane’s relation usability in scope of local scouring phenomenon description in dynamic equilibrium conditions of alluvial sandy bed.http://www.formatiocircumiectus.actapol.net/pub/15_4_209.pdflocal scourdynamic balanceLane’s relationphysical modellingalluvial rivers |
| spellingShingle | Marta Kiraga Zbigniew Popek Using a modified Lane’s relation in local bed scouring studies in aluvial bed Acta Scientiarum Polonorum. Formatio Circumiectus local scour dynamic balance Lane’s relation physical modelling alluvial rivers |
| title | Using a modified Lane’s relation in local bed scouring studies in aluvial bed |
| title_full | Using a modified Lane’s relation in local bed scouring studies in aluvial bed |
| title_fullStr | Using a modified Lane’s relation in local bed scouring studies in aluvial bed |
| title_full_unstemmed | Using a modified Lane’s relation in local bed scouring studies in aluvial bed |
| title_short | Using a modified Lane’s relation in local bed scouring studies in aluvial bed |
| title_sort | using a modified lane s relation in local bed scouring studies in aluvial bed |
| topic | local scour dynamic balance Lane’s relation physical modelling alluvial rivers |
| url | http://www.formatiocircumiectus.actapol.net/pub/15_4_209.pdf |
| work_keys_str_mv | AT martakiraga usingamodifiedlanesrelationinlocalbedscouringstudiesinaluvialbed AT zbigniewpopek usingamodifiedlanesrelationinlocalbedscouringstudiesinaluvialbed |