| Texto completo | |
| Autor(es): |
Macedo, Hudson de Azevedo
[1]
;
Stevaux, Jose Candido
[1]
;
Assine, Mario Luis
[1]
;
Silva, Aguinaldo
[2]
;
Pupim, Fabiano do Nascimento
[3]
;
Merino, Eder Renato
[1]
;
Lo, Edward
[4]
Número total de Autores: 7
|
| Afiliação do(s) autor(es): | [1] Univ Estadual Paulista, Inst Geociencias & Ciencias Exatas, Ave 24A, 1515, BR-13506900 Rio Claro, SP - Brazil
[2] Univ Fed Mato Grosso do Sul, Dept Geog, Ave Rio Branco 1270, BR-79304902 Corumba, MS - Brazil
[3] Univ Fed Sao Paulo, Dept Ciencias Ambientis, Rua Sao Nicolau 210, BR-09913030 Diadema, SP - Brazil
[4] Univ Kentucky, Dept Earth & Environm Sci, 101 Slone Res Bldg, Lexington, KY 40506 - USA
Número total de Afiliações: 4
|
| Tipo de documento: | Artigo Científico |
| Fonte: | REVISTA BRASILEIRA DE GEOMORFOLOGIA; v. 18, n. 4, p. 813-824, OCT-DEC 2017. |
| Citações Web of Science: | 3 |
| Resumo | |
Rivers are immensely important to human activities such as water supply, navigation, energy generation, and agriculture. They are also an important morphodynamic agent of erosion, transport and deposition. Their capacity to transport sediment depends on their hydraulic characteristics and can be predicted by mathematical models. Several mathematical models can be used to compute bed-load transport. Each one is appropriately better for certain conditions. In this paper, we present an application built in Microsoft Excel to compute the bed-load transport in rivers based on the Van Rijn mathematical model. The Van Rijn model is appropriate for rivers transporting sandy sediments in conditions of subcritical flow. Hydraulic parameters such as channel slope, stream power, and Reynolds and Froude numbers can be calculated using the application proposed here. The application was tested in the Parana River and results from the calculations are consistent with data obtained from fieldwork surveys. The error of the application was only 20%, which shows good agreement of the model with survey values. (AU) | |
| Processo FAPESP: | 14/23334-4 - Reconstrução de mudanças no sistema fluvial da Amazônia durante o Cenozoico tardio (<5 Ma) por meio da integração de análises por luminescência opticamente estimulada (OSL) e nuclídeos cosmogênicos (TCN). |
| Beneficiário: | Fabiano do Nascimento Pupim |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 14/06889-2 - Mudanças paleo-hidrológicas, cronologia de eventos e dinâmica sedimentar no quaternário da Bacia do Pantanal |
| Beneficiário: | Mario Luis Assine |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa de Pesquisa sobre Mudanças Climáticas Globais - Regular |
| Processo FAPESP: | 07/55987-3 - Sistemas deposicionais do quaternário (Pleistoceno tardio/holoceno) da Bacia do Pantanal Mato-Grossense, centro-oeste do Brasil |
| Beneficiário: | Mario Luis Assine |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |