Sökning: "Realizable k-epsilon"

Hittade 4 uppsatser innehållade orden Realizable k-epsilon.

  1. 1. CFD Simulations of Flow Characteristics of a Piano Key Weir Spillway

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Elektricitetslära

    Författare :William Sjösten; Victor Vadling; [2020]
    Nyckelord :Piano Key Weir; Ansys Fluent; Multiphase Flow; Spillway; Flow Characteristics; CFD; Realizable k-epsilon; Volume of Fluid; Renolds-averaged Navier-Stokes;

    Sammanfattning : Comprehensive rehabilitation projects of dam spillways are made in Sweden, due to stricter dam safety guidelines for their discharge capacity. The Piano Key Weir (PKW) is an innovative design which has proven effective through several renovation projects made in many countries including France. LÄS MER

  3. 2. Fluid field analysis on a flexible combustor for a hybrid Solar / Brayton system : A numerical study

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :PAUL JACQUEMARD; [2020]
    Nyckelord :CFD; MGT; LPP Combustor; Impinging hole; CFD; MGT; LPP-brännare; slaghålsvägg;

    Sammanfattning : Recent improvements to concentrating solar dish systems lead to further focus on hybridization systems for small-scale power generation applications. Variability of the solar load creates new requirements for combustion systems. LÄS MER

  4. 3. CFD and Experimental Study of Refuelling and Venting a Fuel System

    Master-uppsats, Linköpings universitet/Mekanisk värmeteori och strömningslära

    Författare :Aditya Naronikar; Anton Riström; [2019]
    Nyckelord :CFD; VOF; multiphase; refuelling; gasoline; ORVR; automotive; volvo;

    Sammanfattning : In 1999, California Air Resources Board (CARB) implemented a regulation that required all gasoline cars sold in California be fitted with an Onboard Refueling Vapor Recovery System (ORVR). The ORVR system is designed to prevent Volatile Organic Compounds (VOCs) from escaping into the atmosphere during refuelling by storing the gas vapours in a carbon canister. LÄS MER

  5. 4. Simulation of bubbly flow in a flat bubble column

    Master-uppsats, Lunds universitet/Kemiska institutionen; Lunds universitet/Kemiteknik (CI)

    Författare :Andreas Nygren; [2014]
    Nyckelord :Computational Fluid Dynamics; Bubble Column; Turbulence Modelling; Eulerian-Eulerian framework; Chemistry;

    Sammanfattning : Numerical, transient simulations of a meandering bubble plume in a rectangular flat bubble column was carried out, using the commercial CFD package ANSYS Fluent 15 within the framework of a Eulerian-Eulerian description. A Sensitivity analysis of turbulence closure was performed using four turbulence models: standard, RNG, Realizable k − epsilon and the Reynolds stress model. LÄS MER