Sökning: "NGV"

Visar resultat 1 - 5 av 10 uppsatser innehållade ordet NGV.

  1. 1. Early-Stage Validation of Autonomous Vehicles in Ambiguous Environments : A Systems-Theoretic Process Analysis (STPA) of an Autonomous Military Defense Industry Vehicle

    Master-uppsats, Linköpings universitet/Fordonssystem

    Författare :Maria Axelsson; [2024]
    Nyckelord :STPA; System Safety; AFRY; Milrem Robotics; Safety Analysis; Autonomous Vehicles; Control Structure; Control Model; NGV; THeMIS; themis; THEMIS;

    Sammanfattning : This report delves into the early developmental phase of an autonomous vehicle designed for defense applications. Navigating diverse terrains, this unmanned ground vehicle (UGV) poses unique challenges, particularly in the absence of clearly defined directives found in typical traffic scenarios. LÄS MER

  3. 2. Evaluation of CFD Methods for Prediction of Total Temperature and Total Pressure Distribution in Gas Turbines

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

    Författare :Lars Fredrik Wahlgren; [2019]
    Nyckelord :;

    Sammanfattning : This thesis work was performed as a collaboration between the Royal Institute of Technology in Stockholm and Siemens Industrial Turbomachinery in Finspång. It was undertaken with the purpose of investigating the use of CFD methods in ANSYS CFX to predict flow mixing in gas turbines. LÄS MER

  4. 3. How to Stimulate the Sales of Liquefied Natural Gas Vehicles - A Case Study in Belgium

    Master-uppsats, Lunds universitet/Miljövetenskaplig utbildning

    Författare :Pontus Sterner; [2018]
    Nyckelord :LNG Belgium Scania Sustainaility Alternative Fuel Transport; Business and Economics;

    Sammanfattning : Liquefied Natural Gas is a clean and lower carbon alternative to diesel in the heavy road transport sector. It is established as a system in Netherlands and is in the preliminary phase in Belgium with three existing LNG filling stations. LÄS MER

  5. 4. Sensitivity Analysis in 3D Turbine CFD

    Master-uppsats, KTH/Mekanik

    Författare :Simon Kern; [2017]
    Nyckelord :;

    Sammanfattning : A better understanding of turbine performance and its sensitivity to variations in the inletboundary conditions is crucial in the quest of further improving the efficiency of aero engines.Within the research efforts to reach this goal, a high-pressure turbine test rig has been designedby Rolls-Royce Deutschland in cooperation with the Deutsches Zentrum für Luft- und Raumfahrt(DLR), the German Aerospace Center. LÄS MER

  7. 5. ON SIMULATING COMPRESSIBLE FLOWS WITH A DENSITY BASED SOLVER

    Master-uppsats, KTH/Mekanik

    Författare :Sathyanarayanan Chandramouli; [2016]
    Nyckelord :Coupled density based solver; High Pressure Turbine Nozzle Guide Vane;

    Sammanfattning : A coupled density based solver in the framework of foam-extend is used to perform simulations of transonic flows. The solver is based on an explicit and time-accurate algorithm and is coupled to a compressible Unsteady Reynolds-Averaged Navier-Stokes (URANS) and a Large Eddy Simulation (LES) module. LÄS MER