Please use this identifier to cite or link to this item: https://rda.sliit.lk/handle/123456789/647
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dc.contributor.authorMorinaga, T-
dc.contributor.authorTanaka, N-
dc.contributor.authorYagisawa, J-
dc.contributor.authorKarunaratne, S-
dc.contributor.authorWeerakoon, W. M. S. B-
dc.date.accessioned2022-01-13T04:22:15Z-
dc.date.available2022-01-13T04:22:15Z-
dc.date.issued2012-
dc.identifier.citationCited by 5en_US
dc.identifier.urihttp://localhost:80/handle/123456789/647-
dc.description.abstractDrag coefficients of a real tree trunk and the sheltering effects of an upstream trunk on a downstream one in a linear arrangement with different spacings and inclinations were investigated in detail. In addition, for elucidating the change of drag coefficient for an overturned tree, drag force acting on a real tree with roots was also measured in this study. For the measurement of drag force with different inclinations, Terminalia Cattapa and Albizia sp., vegetated in Sri Lanka, were selected in this study. Drag coefficient of inclined tree trunk has the similar tendency in relation to the Reynolds number with that of vertical standing tree investigated in Tanaka et al.(2011). For the vertical tree trunk with rough surface, drag coefficient of rear-side tree trunk was decreased with decreasing L/d (where, L is spacing and d is the diameter of trunk). In addition, as a result of mutual interference experiment of two inclined tree trunk, the drag coefficient of rear-side trunk decreased with the increase of the inclination. Under the influence of the increment of projected area due to existence of roots and shear force acting on tree trunk surface, the drag coefficient of a tree with roots became similar value (1.0-1.2) comparing with that of a vertical standing tree.en_US
dc.language.isoenen_US
dc.publisherFaculty of Engineering - University Of Ruhuna. Galleen_US
dc.relation.ispartofseriesInternational Symposium on Advances in Civil and Environment Engineering practices for sustainable development;142-149-
dc.subjectdrag coefficienten_US
dc.subjectReynolds numberen_US
dc.subjectbendingen_US
dc.subjectoverturningen_US
dc.subjecttree rootsen_US
dc.subjectsheltering effecten_US
dc.titleEstimation of drag coefficient of trees considering the tree bending or overturning situationsen_US
dc.typeArticleen_US
Appears in Collections:Research Papers - Department of Civil Engineering
Research Papers - SLIIT Staff Publications

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