Essays about: "1D 2D flow models"

Showing result 1 - 5 of 6 essays containing the words 1D 2D flow models.

  1. 1. Assessment of hydropower mitigation measures for fish habitat rehabilitation with a coupled eco-hydraulic model : A case study on the Skålan-Äldern stretch

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Francesca Polato; [2021]
    Keywords : hydropower; mitigation measures; ecological flow assessment; hydraulic modeling; physical habitat models; vattenkraft; begränsande åtgärder; ekologisk flödesbedömning; hydraulisk modellering; fysiska livsmodeller;

    Abstract : In the past century, hydropower development in Sweden has been facilitated by the lack of appropriate environmental legislation. This exploitation has resulted in the current poor ecological status of most Swedish water bodies affected by hydropower, and in the need for new policies that reflect the 2000 European Water Framework Directive. READ MORE

  3. 2. 2D Effects of Geomorphology and Discharge on Hyporheic Exchange—a HEC-RAS Modelling Study

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Olivia Preston; [2020]
    Keywords : average hyporheic exchange velocity; water surface elevation; water surface concavity; hydrostatic head;

    Abstract : Hyporheic exchange is an ecologically and biogeochemically essential function of rivers and streams. One important driver of hydrostatic (hyporheic) exchange is gra- dients in the hydrostatic hydraulic head at the streambed. READ MORE

  4. 3. The role of groundwater in the inundation of a river-connected floodplain : case study of the river Silverån in southeast Sweden

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Stina Bång; [2019]
    Keywords : Groundwater flooding; Groundwater modeling; Flood modeling;

    Abstract : Fluvial flooding has long been recognized as one of the most frequently occurring natural disasters worldwide, with consequences as large economic losses from damages on infrastructure and agriculture, as well as severe impacts on human health. A less known and explored type of flooding is groundwater flooding. READ MORE

  5. 4. Potentials and limitations of 1D, 2D and coupled 1D-2D flood modelling in HEC-RAS

    University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Author : Alexander Betsholtz; Beatrice Nordlöf; [2017]
    Keywords : Hydraulic modelling; HEC-RAS; 1D; 2D; 1D-2D; flooding; sub-grid; Technology and Engineering;

    Abstract : Hydraulic models can be used to predict the consequences of flooding events. In this project, three hydraulic models were constructed using the software HEC-RAS, and compared through a case study on Höje river catchment. READ MORE

  6. 5. Performance and uncertainty estimation of 1- and 2-dimensional flood models

    University essay from Avdelningen för Industriell utveckling, IT och Samhällsbyggnad

    Author : Nancy Joy Lim; [2011]
    Keywords : 1D 2D flow models; flood; inundation study; GIS; GLUE; HEC-RAS; Manning’s coefficient; Telemac;

    Abstract : Performance-based measures are used to validate and quantify how likely the system’s results resemble that of the actual data. Its application in inundation studies is performed by comparing the extents of the predicted flood to the real event by measuring their overlap size and getting the percentage of this size to the union of both data. READ MORE