Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"hydraulic roughness"”.
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Hydraulic roughness of corrugated, unperforated plastic drainage tubing
Thesis (M.S.)--Michigan State University. Department of Agricultural Engineering, 1971
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Evaluation of hydraulic roughness routines and properties in the presence of vegetation
Hydraulic roughness in the presence of vegetation is notoriously difficult to predict. However, reliable methods for predicting flow resistance in vegetated channels and floodplains are needed in order to address the needs of modern river engineering. To this end, the objectives of this research …
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Acoustic monitoring of hydraulic resistance in partially full pipes.
Hydraulic losses in sewer pipes are caused by wall roughness, blockages and in-pipe sedimentation. Hydraulic resistance is a key parameter that is used to account for the hydraulic energy losses and predict the sewer system propensity to flood. Unfortunately, there are no objective methods to …
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Laboratory experiments on alluvial cover in mixed bedrock-alluvial meandering channels and on the formation and evolution of supraglacial meltwater meandering streams
… meandering channels? 3. How does hydraulic roughness in a bedrock river change under different sediment supply scenarios and how do these changes relate to the ratio of areal alluvial cover to total bed area averaged over a reach? 4. How can the composite roughness, including the …
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Effects of Posidonia oceanica seagrass on nearshore waves and wave-induced flows.
… mimics were designed carefully to recreate the hydraulic behaviour of Posidonia plants under waves.<br/><br/>Field results indicate that shallow Posidonia meadows are effective at reducing wave energy under low wave energy conditions and small wave amplitudes. The flume experiments confirm this …
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Influence of riparian vegetation on near-bank flow structure and rates of erosion on a large meandering river
… fluid against the outer bank. In contrast, the roughness elements along the outer bank of the unforested bend are primarily large-scale topographic irregularities that are not effective at reducing flow velocities near the bank toe. The second study explores the various scales of outer bank form …
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Utilizing archival data to assess historic changes in flood flow conveyance of the Mississippi River
… next time step, and 3) a model with floodplain roughness (i.e., land cover) of the next time step. Comparison of the model for actual conditions and the scenario models provide a quantitative assessment of levee expansion, channel modification, and land-cover change on stage. Comparison of the …
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River - Riparian Vegetation Interactions
… this point of view vegetation merely affects the roughness, hydraulic resistance, and bank erodibility in the same manner as any a-biotic element with the same mechanical and morphological characteristics. The active role is due to the biotic changes intrinsic to living vegetation. From this point …
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Hydraulic modelling and flood inundation mapping in a bedrock-confined anabranching network: the Mekong River in the Siphandone Wetlands, Laos
… specialists, especially in the hydraulic field. Anabranching networks can be<br/>found in different physical environments; however, the hydraulic and geomorphological<br/>natures of such river networks are still not well known leading to on-going discussions on the<br/>definition …