Sökning: "Hydrodynamic model"

Visar resultat 21 - 25 av 93 uppsatser innehållade orden Hydrodynamic model.

  1. 21. Nutrients spreading with cloudburst modeling

    Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

    Författare :Nikita Smiyanov; [2020]
    Nyckelord :MIKE21; 2D-modeling; nutrients; phosphorus; nitrogen; cloudburst; land-use; MIKE21; 2D-modellering; närsalter; fosfor; kväve; skyfall; markanvändning;

    Sammanfattning : Climate change and environmental disasters are strongly dependent. Humanity is facing considerable changes in environmental adaptions and remediation of contaminated sites. Water is a valuable resource that should be protected and prevented from hazardous influences. LÄS MER

  3. 22. Praktisk modellering av vitvatten i den turbulenta vaken för jämförelse av marina propulsorer

    Master-uppsats, KTH/Marina system

    Författare :Felix Brodin; [2020]
    Nyckelord :;

    Sammanfattning : En semi-empirisk modell som beskriver vitvattets sönderfall i den turbulenta vaken har härletts utifrån optiska studier av Stridsbåt 90H och Buster Magnum. Bakgrunden är ett ökat hot från rymdburna system mot den svenska Marinen. Fokus har varit Amfibiekårens båtpark. LÄS MER

  4. 23. Evaluation of Local Scour along Rönne Å at Ängelholm

    Master-uppsats, Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Författare :Mohamed Fainaz Mohamed Inamdeen; [2020]
    Nyckelord :HEC RAS; Rönne å; Bend scour; Contraction scour; Abutment scour; River flow; HEC 18; Technology and Engineering;

    Sammanfattning : Riverbed scouring is an emerging problem aligned with higher frequent river discharges, experiences in a short period of time with shifting climate conditions. This problem brings a huge challenge to relevant authorities to safeguard river stability and hydraulic structures. LÄS MER

  5. 24. Numerical Study on Hydrodynamic Characteristics of Flood Discharge Tunnel in Zipingpu Water Conservancy Project : Using RANS equations and the VOF model

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Elektricitetslära

    Författare :Micaela Hamberg; Signe Dahlin; [2019]
    Nyckelord :VOF; RANS; Navier-Stokes; Spillway; Discharge tunnel; ANSYS; Fluent; CFD; Grid convergence index; Design of spillway; Cavitation; Gambit; k-epsilon; Ansys Gambit;

    Sammanfattning : To avoid the large amount of damage that floods can cause, spillway tunnels are used to control water levels. To ensure the safety of water transportation through spillway tunnels, the behaviour of the water throughout the tunnel is important to know. LÄS MER

  7. 25. Galaxy evolution in extreme environments

    Master-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation

    Författare :Samhitha Vadlamani; [2019]
    Nyckelord :Galaxy evolution; interactions; starburst; Compact galaxy groups; Stephan s Quintet; Physics and Astronomy;

    Sammanfattning : Interactions play a crucial role in determining how galaxies evolve in terms of their morphologies and star formation histories, since the majority of the known galaxies in the nearby Universe are found to exist in groups. Compact groups of galaxies are of particular interest as they contain a small number of galaxies in dense configurations and host repeated interactions between them, enabling us to capture signatures of these interactions (e. LÄS MER