Sökning: "Euler ˛flow"

Visar resultat 1 - 5 av 20 uppsatser innehållade orden Euler ˛flow.

  1. 1. Gravity water waves over constant vorticity flows: from laminar flows to touching waves

    Master-uppsats, Lunds universitet/Matematik (naturvetenskapliga fakulteten); Lunds universitet/Matematikcentrum

    Författare :Francisco Gonçalves Jorge Dias de Carvalho; [2023]
    Nyckelord :Partial differential equations; Water waves; Euler equations; Free boundary problem; Bifurcation theory; Nonlinear functional analysis; Hilbert transform; Mathematics and Statistics;

    Sammanfattning : In a recent paper, Hur and Wheeler proved the existence of periodic steady water waves over an infinitely deep, two-dimensional and constant vorticity flow and subject to gravity whose profile overhangs, among which, waves whose surface touches at a point, enclosing a bubble of air. We take this further, proving the existence of a continuous curve of water waves from a laminar flow up to a touching wave for fixed non-zero gravity. LÄS MER

  3. 2. Simulation based optimizing of fog mesh structures for enhanced fog collection

    Master-uppsats, KTH/Teknisk mekanik

    Författare :Jiawei Miao; [2022]
    Nyckelord :;

    Sammanfattning : Water scarcity has been an increasing problem in many places around the world. According to the World Resources Institute, in 2019 nearly 2.6 billion people which takes a third of the world's population live in the area with 'high water scarcity', with 1.7 billion people in 17 countries living under 'extreme water scarcity'. LÄS MER

  4. 3. Numerisk modellering av tvåfasströmning och syretransport i bubbelkolumner : Metodutveckling för att förutsäga syretransportshastigheten i rent vatten och surfaktantlösningar

    Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Fredrik Andersson; [2022]
    Nyckelord :Bubbelströmning; bottenluftning; syresättning; surfaktanter; computational fluid dynamics;

    Sammanfattning : I samband med det globala samhällets ökande populationsmängd och ekonomiska utveckling ökar färskvattenkonsumtionen och mängden avloppsvatten som produceras. Avloppsvatten behöver renas innan det släpps ut för att inte påverka miljön negativt. LÄS MER

  5. 4. An aeroelastic prediction model for slender wings in supersonic flow

    Master-uppsats, KTH/Flygdynamik

    Författare :Zakarias Priebe; Alexander Hasp Frank; [2021]
    Nyckelord :;

    Sammanfattning : Aeroelasticity is a multidisciplinary subject encompassing several fields of study. Aeroelastic behaviour is defined by the relation between inertial-, elastic- and aerodynamic forces that appear in dynamic systems in steady- or unsteady conditions. LÄS MER

  7. 5. Design of a radial-inflow microturbine for combined heat and power generation unit

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Salvador María Beltrán Martínez; [2021]
    Nyckelord :radial inflow turbine; turbomachinery; rotor; nozzle vanes; reaction; design; TurbAero; CAD; blade speed ratio; specific speed; efficiency; turbine exhaust; turbine; inlet; pressure drop; Euler equation; losses; blade loading plot; pressure side; suction side; Technology and Engineering;

    Sammanfattning : This project aims to design a radial inflow microturbine that will be part of a system to generate both heat and electricity. Considering the specific power and the mass flow rates involved with the system, a radial inflow turbine was chosen. This type of turbine provides much larger power density in a single stage compared to the other types.. LÄS MER