Essays about: "URANS"

Showing result 1 - 5 of 11 essays containing the word URANS.

  1. 1. Study of mixing and exchange in a drinking water reservoir using CFD modeling

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Nadja Rabizadeh; [2023]
    Keywords : CFD; Fluid Mechanics; OpenFOAM; drinking water reservoir; URANS; transient; exchange of water; mixing; Norrvatten;

    Abstract : This thesis examines water mixing and exchange in a drinking water reservoir operated by themunicipal association Norrvatten. Recent water samples from the reservoir’s outgoing waterhave shown an increase in culturable bacteria during late summer and fall. READ MORE

  3. 2. Thermal Analysis of Wave Energy Converter : Developing a Compact CHT Model for Operational Insights

    University essay from Linköpings universitet/Mekanisk värmeteori och strömningslära

    Author : Jakob Jidbratt; Joel Leckström; [2023]
    Keywords : Computational Fluid Dynamics; CFD; Conjugate Heat Transfer; CHT; Wave Energy Converter; WEC; Moving mesh; Ball screw;

    Abstract : Climate change is a critical global issue that continues to shape the way we understand and interact with the world around us. It is discussed more than ever before, especially in politics. READ MORE

  4. 3. Study of flow fields in mixing tanks with particles using CFD

    University essay from Lunds universitet/Institutionen för energivetenskaper

    Author : Sergio Poveda Ruiz; [2021]
    Keywords : Keywords: Solid-liquid mixing; particle suspension; aseptic tanks; stirrer geometries; flow fields; URANS; particle modeling; LPT; DEM.; Technology and Engineering;

    Abstract : The demand for food products with particles has increased in the last decades. Among them, yoghurt with fruit pieces or cereals can be found. Thus, the food processing industry is facing important challenges to offer these products to meet the quality requirements. READ MORE

  5. 4. Transient Flow Simulations in Exhaust After Treatment Systems

    University essay from Linköpings universitet/Mekanisk värmeteori och strömningslära

    Author : John Walder; [2020]
    Keywords : Computational Fluid Dynamics; exhaust after treatment system; ammonia mixing;

    Abstract : The exhaust after treatment system is responsible for removing particulates and contaminants from the exhaust gases. The flow entering the SCR, a catalyst utilizing ammonia to reduce NOx emissions, was studied. The quality and distribution of flow entering the SCR plays an important role in the efficiency of the systems. READ MORE

  6. 5. LES Simulation of Hot-wire Anemometers

    University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Author : Assiye Süer; [2017]
    Keywords : Hot-wire anemometer; Hot-film anemometer; Computational Fluid Dynamics; Mars Science Laboratory; MSL; Mars; Large Eddy Simulations; LES; Reynolds-Averaged Navier–Stokes equations; RANS;

    Abstract : Hot wire anemometers have been used in several wind velocity sensors deployed in Mars. They are based in keeping the temperature of a surface at a constant value, above the ambient. This is done by means of a heater controlled with an electronic system. READ MORE