Banca de QUALIFICAÇÃO: GABRIELA SILVEIRA VIRGILI

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : GABRIELA SILVEIRA VIRGILI
DATE: 31/10/2023
TIME: 14:30
LOCAL: https://youtube.com/live/0YAPtr7ltfE?feature=share
TITLE:

GLOBAL SENSITIVITY ANALYSIS OF NUMERICAL SEDIMENTATION MODELS IN SMALL RESERVOIRS

KEY WORDS:

retention efficiency, sediment transport

PAGES: 86
BIG AREA: Engenharias
AREA: Engenharia Civil
SUBÁREA: Engenharia Hidráulica
SPECIALTY: Hidráulica
SUMMARY:

The erosive process and sediment transport occur naturally and play an important role in the formation and alteration of the landscape. Areas degraded for human activities, such as mining, tend to generate more sediment, necessitating the implementation of retention structures to minimize the impacts on rivers caused by a significant increase in solid concentration. The reservoir's capacity to retain sediment, also referred to as sediment containment efficiency, depends on several factors, such as reservoir flow rate, sediment influx, sediment characteristics, reservoir shape and size, turbidity currents, and location of implementation. There are numerous studies aimed at understanding sediment deposition behavior in large reservoirs, but little is discussed regarding small-scale structures implemented to retain sediments. Thus, the objective of this work is to analyze the factors that interfere with sedimentation rates in small reservoirs, namely: volume, reservoir surface area, geometry (length, width, and height), flow rate, and influent sediment concentration; to support the calculation of sediment containment structures. The study will be conducted through the development of numerical models, allowing for an analysis of the sensitivity of results in light of interfering factors. Additionally, a comparison will be made with established methodologies for calculating sediment containment efficiency, which are commonly adopted.

COMMITTEE MEMBERS:
Presidente - HERSILIA DE ANDRADE E SANTOS
Interno - ROGERIO CABRAL DE AZEVEDO
Externo à Instituição - JORGE LUIS ZEGARRA TARQUI - UFMG
Externo à Instituição - JOSÉ CARLOS DE ARAÚJO - UFC