Sökning: "CCM"

Visar resultat 1 - 5 av 92 uppsatser innehållade ordet CCM.

  1. 1. Computational Fluid Dynamics and Modeling of a Free Surface Flow

    Master-uppsats, KTH/Skolan för teknikvetenskap (SCI)

    Författare :Mathieu Marmier; [2023]
    Nyckelord :CFD; Free Surface Flow; VOF; STAR-CCM ; Multiphase Simulation; Nuclear Engineering; Fluid Mechanics;

    Sammanfattning : This project deals with the CFD modelling of a free surface flow. The aim is to develop and validate a fast and accurate numerical model for stratified two-phase flows. Volume of Fluid (VOF) multiphase model is employed. The purpose is to use the developed numerical model for the design of an element within a compact nuclear reactor. LÄS MER

  3. 2. Medhörningens inverkan på produktionsvärdet inom livescenen : en studie kring medhörningens inverkan på vokalisters konstnärliga utrymme vid scenframträdanden

    Magister-uppsats, Högskolan Dalarna/Institutionen för kultur och samhälle

    Författare :Erika Iljero-Winnberg; [2023]
    Nyckelord :Livescen; Hörbarhet; Lombardeffekten; Ljudkvot; Interfoliering; LTAS; Salience; Medhörning; Lyssning; In-ear; Scenmonitor; Monitortekniker; Ljudtekniker; Vokalist; Sångare; Sångerska; CCM; Ickeklassisk; Riktningskaraktäristik; Kommunikation; Produktionsvärd;

    Sammanfattning : One important aspect of stage performance for non-classical singers is stage monitoring. Amplified instruments along with drums often compete in frequency and sound level which affects the audibility on stage, both in detail and as a whole. LÄS MER

  4. 3. Molecular characterization of vascular malformations using single-cell RNA sequencing and immunohistological analysis

    Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning

    Författare :Amanda Norrén; [2023]
    Nyckelord :;

    Sammanfattning : CCM is a human disease in which vascular malformations develop in the central nervous system, predominantly in the brain. The malformations which can measure up to several centimeters in size are dilated and leaky vessels, with unstable cellular junctions and thin vessel walls. LÄS MER

  5. 4. Investigation of fuel and water injection in gas turbine combustion : Evaluate the methodologies available in Star CCM+ for modeling of water injection in simplified combustor using liquid and gas fuels

    Master-uppsats, Linköpings universitet/Mekanisk värmeteori och strömningslära

    Författare :Sanger Shinwari; [2023]
    Nyckelord :Diesel and Methane fuel combustion; FGM combustion model; Lagrangian multiphase modelling; Inert Stream; Water injection; STAR CCM ;

    Sammanfattning : The negative impact of gas turbine emissions on the environment and human health is a growing concern. Recent studies suggest injecting water into the combustion process effectively reduces emissions and increases power output. However, this approach presents new challenges that need to be thoroughly investigated. LÄS MER

  7. 5. Analysis of a high step-up gain DC-DC converter for fuel cell and battery application

    Kandidat-uppsats, Uppsala universitet/Institutionen för elektroteknik

    Författare :Kaj Törngren Sato; [2023]
    Nyckelord :Fuel cell; High step-up DC-DC converter; Boost converter; Coupled inductors; Coupling factor; CCM; DCM; Duty cycle;

    Sammanfattning : In sustainable energy systems those using fuel cells, high step-up gain converters are widely used to increase the output voltage to levels that can be used by other converters, such as inverters for grid connection or powering other AC loads. In order to obtain a higher voltage gain, in comparison to a traditional boost converter, often different topologies techniques are involved. LÄS MER